Cornerstone Defense | Technically Innovative Solutions

Location: Herndon, Virginia
Type: Contract
Job #3971

A/V Engineer
Herndon, VA
Active TS/SCI with Polygraph

Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Job Responsibilities:

Survey, plan, design, configure, and test multi-classification AV solutions tailored for government customers. Create custom audiovisual system designs, including DSP layouts and system configurations
Participate in customer stakeholder meetings to gather, document, and validate system requirements. Research, evaluate, and recommend technology solutions to address customer needs
Prepare detailed system engineering documentation such as signal flow diagrams, line diagrams, bills of materials, rack elevations, and cable plant layouts
Support and lead onsite AV system installations and configuration phases
Collaborate closely with customer facility teams, subcontractors, and vendors during installation as needed
Assist in developing end-user training materials, as well as operations and maintenance plans
Conduct thorough in-house testing and perform on-site system commissioning at client locations
Continuously enhance industry knowledge and technical skills through ongoing training, certifications, and review of relevant trade publications

Required Skills:

Experience in setup/install and support of large-scale audiovisual systems.
Experience coordinating or leading schedule driven tasks.
Experience directly interfacing with customers.
5+ years of related systems design and integration experience, or equivalent education and experience

Desired Skills:

AVIXA certification
Hands-on experience with DSP platforms such as Biamp, QSC, or similar
Proficiency with control systems including Crestron, Extron, or Thinklogical
Experience using design and documentation tools like AutoCAD and Visio

Company Benefits:
Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs. These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to: A 401(K) plan with a company match, tuition and training assistances, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources.

Type: Contract
Job #3970

Title: CNO Developer (iOS)
Location: Annapolis Junction, MD
Compensation Range: $185 -$205K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Overview:
We are seeking a highly motivated and technically skilled CNO Developer to join our iOS team supporting mission-critical cyber operations. The ideal candidate must possess strong software engineering fundamentals, hands‑on experience with iOS internals, and at least two years of cybersecurity or CNO‑focused development. This role supports mission‑driven SAS efforts and requires engineers comfortable working at low levels of the operating system, analyzing complex behaviors, and developing advanced capabilities in constrained environments.
Required Skills:

Strong iOS internals experience, including knowledge of operating system architecture, application lifecycle, security mechanisms, sandboxing, and system‑level behavior.
Reverse engineering experience using IDA Pro or Ghidra
Ability to analyze binaries, interpret compiler output, and understand functionality without symbols.
Proficiency in C and C++ for low‑level, performance‑sensitive, or security‑focused development.
Experience developing, debugging, and sustaining software in constrained, embedded, or security‑sensitive environments.
Demonstrated ability to design, implement, test, and maintain complex capabilities end‑to‑end.

Desired Skills:

Experience with vulnerability research, exploitation, or mobile‑focused security research.
Familiarity with kernel‑mode concepts or OS‑level subsystem behavior.
Experience supporting mission‑focused CNO tool development.
Comfort working in small, fast‑moving, high‑trust engineering teams.

Qualifications:

Bachelor’s degree in computer science or related discipline from an accredited college or university, plus five (5) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity
At least 2 years of experience must be in cybersecurity or CNO‑specific development.

Location: Annapolis Junction, Maryland
Type: Contract
Job #3969

Title: Software Integration Engineer 3 (Systems & Cloud)
Location: Annapolis Junction, MD
Compensation Range: $220 -$240K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Position Description:
The Software Integration Engineer shall be responsible for the integration, test, deployment, and troubleshooting of various production-ready mission services deployed in an on-prem enclave and AWS Cloud environments.

Qualifications:
Bachelor's Degree in Computer Science or related field and have at least eight (8) years of demonstrable experience with integrating, installing, configuring, upgrading, compiling, and supporting COTS/GOTS software in a heterogeneous operating system environment. OR

The individual shall have five (5) years full time Computer Science directly related work that can be substituted for a degree and have at least eight (8) years of demonstrable experience. OR

An industry recognized professional certification, as defined in the TT0s, may substitute as one (1) year experience. A master’s degree in computer science or related field may substitute for two (2) years' experience.

Position Required Skills:

Experience using the Linux CLI and Linux tools
Experience developing Bash/Python scripts to automate manual processes
Proficient performing Linux System Administration
Experience installing, configuring, and sustaining COTS/GOTS/FOSS software in a Linux environment
Foundational knowledge of DevOps Tooling (e.g., CI/CD, Git)
Experience with Cloudera Hadoop ecosystem (NiFi, HDFS, Map/Reduce)
Experience with installing, configuring, and sustaining multiple NoSQL databases including MongoDB and Accumulo
Experience with containerization technologies (e.g., Docker, Podman, containerd)
Experience with IaC principles and automation tools (e.g., Ansible, Salt, Puppet)
Demonstrated experience using system monitoring tools (e.g., Prometheus/Grafana)

Position Desired Skills:

Familiar with containerization technologies such as Docker, PodMan, containerd
Experience with the Atlassian Tool Suite (JIRA, Confluence)
AWS Cloud experience

Location: Herndon, Virginia
Type: Contract
Job #3968

Title: Data Engineer Expert
Location: Herndon, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Seeking a highly motivated, self-directed professional for a Data Engineering role. In this role, you will design and maintain data pipelines, collaborate closely with development teams, and help deliver reliable data solutions that enable teams to transform data into actionable insights.
Required Qualifications:
•
Active TS/SCI with Polygraph clearance.
•
A Master’s degree in Computer Science, Information Systems, Engineering, or additional years of specialized experience in a scientific or technical discipline.
•
Build and maintain reliable data pipelines that support ingestion, transformation, and delivery of large datasets
•
Partner with software developers and engineering teams to integrate data solutions into existing systems and applications
•
Develop and optimize SQL queries to support data retrieval, transformation, and analysis
•
Work with relational databases such as PostgreSQL, Oracle, and MySQL to store, manage, and access data
•
Develop scripts and automation using Python, Linux, and shell scripting to support data processing tasks
•
Operate within AWS environments to support cloud-based data infrastructure and workflows
•
Prepare and structure data outputs in usable formats for analysis and downstream systems, including JSON
•
8+ years of experience developing or maintaining data pipelines in collaboration with development teams
•
4+ years of hands-on experience with Python
•
Experience working with AWS cloud services
•
Familiarity with SPARC environments and relational databases including PostgreSQL, Oracle, or MySQL
•
Demonstrated experience writing and maintaining SQL queries
•
4+ years of experience working in Linux environments, including shell scripting

Experience preparing and managing structured and unstructured datasets, including JSON formats
Desired Qualifications:
•
Excellent communication and collaboration skills.
•
Experience with workflow orchestration tools such as Apache NiFi or Apache Airflow
•
4+ years of development experience with Java or Scala
•
Experience managing or supporting EMR or SPARC clusters
•
Background in performance tuning and optimization of data pipelines or large data systems
•
4+ years of experience working with Hive or Iceberg
•
Familiarity with implementing cloud-based security practices
•
Experience using ACM processes for code deployment

Location: Herndon, Virginia
Type: Contract
Job #3967

Title: Data Engineer Full Performance
Location: Herndon, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Seeking a highly motivated, self-directed professional for a Data Engineering role. In this role, you will design and maintain data pipelines, collaborate closely with development teams, and help deliver reliable data solutions that enable teams to transform data into actionable insights.
Required Qualifications:
•
Active TS/SCI with Polygraph clearance.
•
A Master’s degree in Computer Science, Information Systems, Engineering, or additional years of specialized experience in a scientific or technical discipline.
•
Build and maintain reliable data pipelines that support ingestion, transformation, and delivery of large datasets
•
Partner with software developers and engineering teams to integrate data solutions into existing systems and applications
•
Develop and optimize SQL queries to support data retrieval, transformation, and analysis
•
Work with relational databases such as PostgreSQL, Oracle, and MySQL to store, manage, and access data
•
Develop scripts and automation using Python, Linux, and shell scripting to support data processing tasks
•
Operate within AWS environments to support cloud-based data infrastructure and workflows
•
Prepare and structure data outputs in usable formats for analysis and downstream systems, including JSON
•
4+ years of experience developing or maintaining data pipelines in collaboration with development teams
•
2+ years of hands-on experience with Python
•
Experience working with AWS cloud services
•
Familiarity with SPARC environments and relational databases including PostgreSQL, Oracle, or MySQL
•
Demonstrated experience writing and maintaining SQL queries
•
2+ years of experience working in Linux environments, including shell scripting
•
Experience preparing and managing structured and unstructured datasets, including JSON formats
Desired Qualifications:
•
Excellent communication and collaboration skills.
•
Experience with workflow orchestration tools such as Apache NiFi or Apache Airflow
•
2+ years of development experience with Java or Scala
•
Experience managing or supporting EMR or SPARC clusters
•
Background in performance tuning and optimization of data pipelines or large data systems
•
2+ years of experience working with Hive or Iceberg
•
Familiarity with implementing cloud-based security practices
•
Experience using ACM processes for code deployment

Location: Chantilly, Virginia
Type: Contract
Job #3966

Data Exploiter
Chantilly, VA
The Data Exploiter analyzes large, unstructured datasets to support operational targeting and analytical requirements. You will manage the entire data life cycle—from collection and triage to vulnerability assessment and the dissemination of actionable intelligence.
Key Responsibilities

Extract and analyze foreign intelligence/counterintelligence value from digital data; assist with cyber attribution efforts.
Conduct log analysis, network traffic monitoring, and vulnerability risk assessments to detect breaches and anomalies.
Develop tailored intelligence products, entity profiles, and derive datasets to drive targeting and operations.
Create new methodologies/algorithms for data correlation; recommend new technologies to improve team performance.
Maintain technical documentation and collaborate cross-functionally with data scientists, engineers, and developers.

Required Qualifications

Experience in network traffic analysis, detailed log analysis, and system monitoring.
Proven ability in vulnerability identification, risk analysis, remediation, and evaluating worldwide security events (Zero Days, cyber-attacks).
Ability to sift through large unstructured datasets to identify/correlate key metadata, artifacts, and critical information gaps.
Knowledge of incident response, containment, mitigation, and common cyber-attack methods.
Experience with technical collection abilities and the full targeting life cycle.

Desired Qualifications

Proficient with network monitoring tools (Splunk, Wireshark, SolarWinds, WSUS, Snare) and OS hardening (CIS-CAT).
Strong understanding of VPNs, VLANs, TCP/IP, and Linux OS.
Experience using scripting to exploit large data sets.
Technical targeting experience; ability to navigate enterprise security accreditation processes; capable of working independently.

Location: Chantilly
Type: Contract
Job #3965

DevOps Engineer (Must have Kubernetes)
Chantilly, VA
The DevOps Engineer manages cloud and on-prem infrastructure to deliver complex software into production. This role focuses on building repeatable CI/CD processes, automation tools, and robust infrastructure-as-code solutions. The ideal candidate is a self-directed innovator capable of keeping pace with high-demand software development in an Agile environment.
Key Responsibilities

Administer repeatable cloud and server-based environments across customer and lab settings.
Build and maintain robust pipelines using GitLab, Docker, Ansible, Terraform, and Puppet.
Design, test, and deploy software tools to extend or replace existing infrastructure capabilities.
Collaborate with software engineers and data scientists to troubleshoot complex issues and provide ongoing production maintenance.
Author and update system documentation, training materials, and standard operating procedures.

Required Qualifications

Hands-on experience building and deploying infrastructure via Ansible and Terraform.
Expert knowledge of Docker and Kubernetes, including onboarding software into Kubernetes environments.
Deep proficiency in Linux-based systems and Shell scripting.
Experience with Git, Maven, Elasticsearch, Opensearch, Prometheus, and Grafana.

Desired Qualifications

Experience with Rancher or cloud-native distributions (EKS, AKS, GKE, OpenShift).
Programming proficiency in Java, JavaScript, or Python.
Hands-on experience with PostgreSQL and Apache NiFi.
Working knowledge of Hadoop, Apache Spark, and related technologies.

Type: Contract
Job #3963

Software Engineer
State College, PA
Active TS/SCI
Compensation Range: $140,000 – $180,000

Responsibilities:
• Design, develop, and maintain advanced software applications for our Satellite Ground Systems.
• Collaborate closely with systems engineers, hardware designers, and other software engineers to deliver reliable and high performance software solutions.
• Design, implement, and test Java, C++ and Python based applications and software components for satellite ground systems.
• Work in parallel with legacy platform teams to eventually migrate workloads onto your pipelines.
• Collaborate with cross-functional teams to define software requirements and specifications.
• Work with previously written code and make modifications as necessary.
• Ensure software performance, reliability, and scalability.
• Participate in software design reviews, code reviews, and system integration activities.
• Contribute to the completion of program and project milestones under the specific guidance of their immediate supervisor.
• Follow established Software processes and procedures, development, documentation and maintenance/management of operations concepts, requirements (system, element, segment level), external and internal interfaces, and other software engineering work products/artifacts.
• Learn the workings of satellite ground systems.
• Work with new tools that will keep you state-of-the-art.

Basic Qualifications:
• An active and transferable Top Secret security clearance that can be crossed over to a TS/SCI security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience.
• Five (5) years of RECENT experience in object-oriented software design and development using Java and C++ in a Linux or UNIX environment.
• Experience using unit testing tools (e.g., JUnit).
• Experience with Python.
• Experience developing software in an Agile/DevOps environment.

Preferred Qualifications:
• Experience leading a technical team is highly desired
• Experience working in a DevOps environment using Docker, Kubernetes, Maven, Jira, Git, BitBucket and Confluence.
• Experience working with SonarQube
• Experience working with SQL
• Security+ certification
• Experience with satellite communication systems and protocols is highly preferred.
• Familiarity with secure coding practices, especially in a defense or aerospace setting.
• Master’s degree in Science, Technology, Engineering or Mathematics (STEM).

Type: Contract
Job #3962

Software Engineer
State College, PA
Active TS/SCI
Compensation Range: $105,000 – $125,000

Responsibilities:
• Design, develop, and maintain advanced software applications for our Satellite Ground Systems.
• Collaborate closely with systems engineers, hardware designers, and other software engineers to deliver reliable and high-performance software solutions.
• Design, implement, and test Java and Python based applications and software components for satellite ground systems.
• Work in parallel with legacy platform teams to eventually migrate workloads onto your pipelines.
• Collaborate with cross-functional teams to define software requirements and specifications.
• Work with previously written code and make modifications as necessary.
• Ensure software performance, reliability, and scalability.
• Participate in software design reviews, code reviews, and system integration activities.
• Contribute to the completion of program and project milestones under the specific guidance of their immediate supervisor.
• Follow established Software processes and procedures, development, documentation and maintenance/management of operations concepts, requirements (system, element, segment level), external and internal interfaces, and other software engineering work products/artifacts.
• Learn the workings of satellite ground systems.
• Work with new tools that will keep you state-of-the-art.

Basic Qualifications:
• An active and transferable Top Secret security clearance that can be crossed over to a TS/SCI security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 2 years of prior relevant experience.
• Two (2) years of RECENT experience in object-oriented software design and development using Java in a Linux or UNIX environment.
• Experience using unit testing tools (e.g., JUnit).
• Experience with Python.
• Experience developing software in an Agile/DevOps environment.

Location: Annapolis Junction
Type: Contract
Job #3960

Title: Software Engineer 3 (Mission Application Dev & Int)
Location: Annapolis Junction, MD
Compensation Range: $190 -$210
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Summary:
The Software Engineer shall be responsible for developing, sustaining, and troubleshooting GHOSTGEM's software suite of applications including DINO and possibly future capabilities as mission needs arise. Software development activities include implementation, testing, and integration with other COTS, GOTS, and FOSS products, packages, and libraries.

Qualifications:
Master’s degree in computer science or related discipline from an accredited college or university, plus five (5) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.
OR
Bachelor’s degree in computer science or related discipline from an accredited college or university, plus seven (7) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity
OR
Nine (9) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.

Required Skills:

Experience using the Linux CLI and Tools
Experience developing scripts using Bash
Recent Python (3.x) software development experience
Experience with Rust programming concepts, or a willingness and aptitude to learn Rust
Experience with NoSQL databases including MongoDB
Experience with containerization technologies such as Docker and containerd
Experience with container orchestration technologies such as Kubernetes
Experience creating Helm Charts to deploy containerized services on Kubernetes
Familiar with Messaging Frameworks including RabbitMQ
Familiar with CI/CD principles, methodologies, and tools including GitLab CI
Familiar with IaC principles, methodologies, and tools such as Ansible
Experience using Git Source Control System

Desired Skills:

Experience with SQL databases including PostgreSQL
Experience with the Atlassian Tool Suite including Jira and Confluence

Location: Annapolis Junction, Maryland
Type: Contract
Job #3959

Title: Software Engineer 2 (Mission Application Dev & Int)
Location: Annapolis Junction, MD
Compensation Range: $170 -$190K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

SWE-2 Qualifications:
Master’s degree in computer science or related discipline from an accredited college or university, plus three (3) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity. OR
Bachelor’s degree in computer science or related discipline from an accredited college or university, plus five (5) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity. OR
Seven (7) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.

Position Description
The Software Engineer shall be responsible for developing, sustaining, and troubleshooting GHOSTGEM's software suite of applications including DINO and possibly future capabilities as mission needs arise. Software development activities include implementation, testing, and integration with other COTS, GOTS, and FOSS products, packages, and libraries.

Position Required Skills

Experience using the Linux CLI
Experience using Linux tools and developing Bash scripts to automate manual processes
Recent software development experience using Python
Willingness to learn Splunk for data collection, message brokers, data storage, and presentation tools
Familiar interfacing with Log Management tools including Syslog-ng and rsyslog
Familiar Message Brokers such as Kafka
Experience with IaC (Infrastructure as Code) principles and automation tools including Ansible
Experience with CI/CD principles, methodologies, and tools such as GitLab CI
Experience with Git Source Control System

Position Desired Skills

Experience with SQL databases including PostgreSQL
Familiar with IaC principles, methodologies, and tools such as Ansible
Experience with Rust programming concepts, or a willingness and aptitude to learn Rust
Experience with the Atlassian Tool Suite including Jira and Confluence

Location: Annapolis Junction, Maryland
Type: Contract
Job #3958

Title: Software Engineer 2 (Workflow Orchestration & Observability)
Location: Annapolis Junction, MD
Compensation Range: $170 -$190K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Position Description
The Software Engineer shall be responsible for creating and maintaining data workflows and automation pipelines using Apache Airflow. This role focuses on building reliable, scalable, and observable workflow orchestration solutions that support data engineering, analytics, and operational use cases. The engineer will collaborate closely with data engineers, platform teams, and stakeholders to ensure workflows are efficient, secure, and production ready.

Position Required Skills

Experience using the Linux CLI and Linux tools
Experience developing Bash scripts to automate manual processes
Recent software development experience using Python and Java
Experience using Apache Airflow (DAG design, scheduling, operators, sensors) to orchestrate, schedule, and monitor complex workflows
Experience using Distributed Big Data processing engines including Apache Spark
Experience with containerization technologies such as Docker, containerd, and Podman
Experience with Git Source Control System

Position Desired Skills

Experience using the Atlassian Tool Suite (JIRA, Confluence)
Familiar with AWS Cloud Services and Infrastructure

Location: Herndon, Virginia
Type: Contract
Job #3956

Title: Software Engineer Expert
Location: Herndon, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Required Education, Experience, & Skills:
We are actively seeking Systems Engineers to perform as a Splunk Cloud engineer with a minimum of 11 years' experience. Information Technology or Engineer Bachelor's or Master’s Degrees are preferred. Specific skills should include the following:
•   Experience integrating diverse data streams
•   Experience with data transfer tools (Ex: NiFi, Cribl, etc)
•   Establishes data standards and acts as custodian of IT and service delivery data sets and streams
•   Experience in analyzing complex networks and systems
•   Experience in analyzing log data from various network components and operating systems
•   Knowledge of complex environments involving shared networks and multiple security enclaves
•   Systems Engineer with Data Engineer background
•   Ability to manage and troubleshoot data feeds
•   Splunk familiarization
•   Python
•   Required Qualifications
•   Experience: 6+ years working with Splunk or Splunk Certifications, with at least 3 years on Splunk Cloud or large Splunk Enterprise deployments.
•   Technical Skills: Expert SPL, knowledge of Splunk apps (Enterprise Security, ITSI, DB Connect), forwarder architectures, indexer/search head concepts.
•   Cloud & Observability: Hands on experience onboarding data from AWS, Azure, and/or GCP; familiarity and observability tooling.
•   Automation: Proficiency CloudFormation and experience integrating Splunk deployments into CI/CD.
•   Scripting: Strong Python and Bash skills for automation, integrations, and ingestion pipelines.
•   Security Knowledge: Understanding of logging best practices, log retention requirements, secure transport, and common compliance frameworks.
•   Soft Skills: Strong troubleshooting, stakeholder communication, project leadership, and mentoring capability.
Preferred Education, Experience, & Skills:
•   Splunk Certified Cloud Architect, Splunk Certified Admin, or Splunk Certified Power User.
•   Cloud certifications (AWS/Azure/GCP).
•   Experience with observability frameworks (OpenTelemetry), metrics pipelines, and metric-to-log correlation.
•   Prior experience operating at enterprise scale (multi TB ingestion/day, global deployments).
•   Proficiency with Terraform, Ansible, or similar IaC tools and experience integrating Splunk deployments into CI/CD.

Location: Herndon, Virginia
Type: Contract
Job #3955

Title: Systems Engineer SME
Location: Herndon, VA

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Required Education, Experience, & Skills:
Seeking a Windows Systems Engineer with a minimum of 16 years' experience, a Bachelor's Degree, and significant experience with Trellix Security or other similar products.

Required Strong Engineering experience with the following:
•   Demonstrated technical proficiency in cybersecurity operations, cybersecurity engineering, systems engineering and/or Windows and Linux systems administration
•   Experience with
o   Data Loss Prevention (DLP) including network monitoring and prevention
o   Active Directory
o   Trellix Endpoint Security (ENS)
o   ePolicy Orchestrator (ePO)
o   Endpoint Detection and Response (EDR)
o   Threat Intelligence Exchange (TIE)
o   Data Exchange Layer (DXL)
•   Databases, Virtualization, Cloud Services [i.e., AWS, Azure]) and enterprise networks
•   The aptitude and ability to develop expertise with Trellix products
•   Familiarity with cyber threat identification, management, mitigation, and response strategies
•   Planning and implementation of new architecture for services and replacement of old infrastructure for maintaining optimal performance
Preferred Education, Experience, & Skills:
•   Writing technical documentation and briefings
•   Leading and/or participating in technical exchange meetings
•   Collaborating with end users as well as inter-agency, intra-agency, and internal Trellix stakeholders
•   Leading or participating in certification and accreditation and/or access and authorization processes
•   Leading or participating in deployment planning and execution
•   Leading or participating in system configuration, tuning, and policy development
•   Monitoring and managing system health, status, availability, and functionality
•   Reporting on technical problems, operational problems, and end user/customer feedback
•   Analyzing data and provide recommendations for solutions to operational and/or technical problems
•   Leading or participating in technical troubleshooting efforts and problem resolution, including assessment, hands-on tasks, log reviews, performing triage tools, reviewing product documentation, and communicating with product support and development teams

Location: Herndon, Virginia
Type: Contract
Job #3954

Title: Systems Administrator SME
Location: Herndon, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Required Education, Experience, & Skills:
We are actively seeking candidates with a minimum of 16 years' experience, and a range of skill levels from basic to advanced. Bachelor's or Master's Degree are preferred in one or more of the disciplines described below where specific skills may include the following:
Key Responsibilities:
Systems Administration
•   Provide Tier I & II support for enterprise systems and escalate advanced issues as needed.
•   Troubleshoot server, operating system, application, and connectivity issues.
•   Support daily operations, monitoring, maintenance, and upgrades for on-prem, virtual, and cloud systems.
•   Document incidents, problems, and service requests using ServiceNow.
•   Support asset management, inventory, and user onboarding activities.
•   Maintain system documentation, SOPs, and operational guides.
•   Deliver hardware within the WMA; limited travel required.
•   Provide guidance and knowledge transfer to junior team members.
Quality Assurance & Testing
•   Test and validate system builds, patches, and configuration changes across Dev/Test/Prod environments.
•   Conduct functional, integration, regression, and post-deployment tests.
•   Develop test documentation including Test Plans, Test Cases, Defect Logs, and Test Reports.
•   Identify, log, and track defects through closure.
•   Create test scenarios that include both expected outcomes and failure conditions.
•   Perform smoke testing and pre/post-deployment validation for production releases.
•   Identify risks or gaps early in development.
•   Recommend areas for automated testing improvements.
Cloud & DevOps Support
•   Validate deployments in AWS, Azure, and hybrid cloud environments.
•   Verify IAM roles, access controls, and Zero Trust security configurations (ACLs, security groups, routing rules, firewall settings).
•   Validate DNS paths, connectivity, and system availability after updates or builds.
•   Confirm server build integrity through post-deployment checks (connectivity, logs, performance).
•   Ensure systems remain available after certificate updates and patching.
Preferred Education, Experience, & Skills:
•   Strong proficiency with:
•   Windows Server 2016–2021
•   Active Directory
•   AWS and/or Azure
•   Virtualized infrastructure
•   ServiceNow or similar ITSM tools
•
Ability to work effectively within Agile teams including Developers, Technical Managers, Business Analysts, and Product Owners.
•   Strong analytical ability, communication skills, and problem-solving capabilities.
•   Ability to work independently and collaboratively.
•   Experience mentoring or providing technical knowledge transfer.

Location: Herndon, Virginia
Type: Contract
Job #3953

Title: Software Engineer SME
Location: Herndon, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Required Education, Experience, & Skills:
We are looking for experienced Full Stack Software Developers to join our technology-based program supporting a key government customer. This program delivers Enterprise Computing engineering services with modern technology solutions with that function both on customer premise, and via remote Cloud services. As a mission-focused administrator that solves problems on the program, you will be expected to: recognize the issue(s), identify the facts, define additional data that would be helpful, make assumptions as necessary, determine alternative approaches, evaluate alternatives, make recommendations, alter assumptions and rework solutions, and reflect on lessons learned.

The Software Developer will develop new automation capabilities that utilize infrastructure as code best practices and establishes a continuous integration /continuous delivery pipeline.

Required Skills, Responsibilities and Experience:
•   Minimum of 16 years of professional software development experience.
•   Proficiency in Java and C#.
•   Experience with modern frameworks and technologies such as React, Node.js, TypeScript, and .NET.
•   Hands-on experience developing solutions in cloud environments (AWS, Azure, Google Cloud, or Oracle).
•   Strong understanding of DevOps practices and related tools (e.g., Jira, GitHub, Jenkins), including pipeline development, release management, and orchestration.
•   Proficiency with scripting languages, preferably Python or PowerShell.
•   Experience developing in both Windows and Linux environments.
•   Ability to work closely with stakeholders to gather requirements and deliver effective technical solutions.
•   Experience architecting, implementing, and maintaining solutions within cloud environments (e.g., AWS or Azure).
•   Strong documentation skills, including developing concepts of operations and standards of practice for tiered maintenance support.
•   Ability to interface with senior leadership and provide regular status updates.
Preferred Education, Experience, & Skills:
•   Ansible
•   Powershell
•   Java
•   Microsoft Certified Engineer
•   Microsoft Certified Architect
•   Or other relevant vendor professional certifications, current within the last 3 to 5 years.

Location: Herndon, Virginia
Type: Contract
Job #3952

Title: Systems Engineer Expert
Location: Herndon, VA
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Company Overview:
Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

Required Education, Experience, & Skills:
We are actively seeking Systems Engineer with a Bachelor's degree and a minimum of eleven (11) years' experience.
•   Strong knowledge of Windows and Linux (RHEL based) operating systems
•   Familiarity with system hardening, security hardening, remote desktop, patch management, and configuration management tools
•   Experience supporting RMF or other accreditation frameworks (FedRAMP, NIST 800-53B, A&A, etc.)
•   Proficiency in scripting languages such as PowerShell, Python, Bash, Apache Web Services
•   Amazon Web services experience (EC2 instances, CloudFormation, S3 Storage, RDS (MySQL))
•   Ability to work in a high profile fast-paced environment.
•   Strong oral and written communication skills
•   Conduct root cause analysis of noted system performance an operational issue.
•   Monitor the performance systems to analyze the metrics produced to identify areas of improvements and report potential anomalies.
•   Emergency after hours engineering support as needed.
•   Communicate to both technical and non-technical audiences.
Preferred Education, Experience, & Skills:
•   Database Administrator (DBA)
•   Networking experience/ Automation
•   API Engineer
•   Experience working in air-gapped environments or with classified systems
•   Experience with Agile methodologies and working in sprint-based development cycles
•   Familiarity with security in CI/CD pipelines and container security (e.g., Docker, Kubernetes)
•   Knowledge of zero trust architecture and identity/access management strategies
•   Toolsets & Platforms:
•   Security Tools: Splunk, Rapid 7
•   Operating Systems: Windows Server, RHEL/CentOS, Ubuntu
•   Compliance Tools: Rapid 7, Greenlight, Illuminate
•   Cloud Platforms: AWS, Azure, GCP
•   Automation/Scripting: PowerShell, Python, Bash, Ansible
•   DevSecOps: Jenkins, Git, Docker, Kubernetes
•   Soft Skills:
•   Strong analytical and troubleshooting skills
•   Excellent communication and documentation abilities
•   Self-starter with ability to manage multiple tasks

Location: Herndon, Virginia
Type: Contract
Job #3951

Title: Network Engineer, SME
Location: Herndon, VA

We are seeking a Subject Matter Expert (SME) Level Network Engineer with a minimum of 16 years' of experience and a specialized focus on Network Access Control (NAC), particularly with significant expertise in CISCO network appliances and associated management software to join our technology-based program supporting a key Government customer. The ideal candidate will have a deep understanding of network security principles, excellent problem-solving skills, and a proactive approach to maintaining and optimizing endpoint validation.

Responsibilities:
•   Subject Matter Expert (SME) Level design, implementation, and management of NAC solutions utilizing CISCO network devices including load balancers, LINUX servers, and CISCO appliances
•   Perform configuration, maintenance, and troubleshooting of NAC policies and profiles
•   Monitor network traffic for potential security threats and proactively address vulnerabilities
•   Collaborate with cross-functional teams to ensure network security standards align with business objectives
•   Stay up-to-date with the latest industry trends and best practices in network security and NAC technologies
•   Provide technical support and guidance to internal and external teams and clients on NAC and network security related issues
•   Participate in the evaluation and selection of new NAC technologies and vendors
Required Education, Experience, & Skills:
We are actively seeking Network Engineers with a minimum of 16 years' experience. Bachelor's or Master’s Degrees are preferred in one or more of the disciplines described below where specific skills may include the following:
•   Ability to translate customer requirements into enterprise network solutions
•   Proven SME level experience as a CISCO Network Engineer with a focus on Network Security
•   Strong proficiency with NAC platforms
•   In-depth knowledge of network protocols, TCP/IP stack, and OSI model
•   Experience with firewall management software such as Cisco FTD
•   Excellent communication and interpersonal skills
•   Ability to work independently and collaboratively in a fast-paced environment
Preferred Education, Experience, & Skills:
•   Knowledge of NAC management software such as Cisco Identity Service Engine (ISE) is high desired
•   Industry certifications such as CCNA Security, CCNP Security, REDHAT Certified Architect (RHCA), or similar industry certifications are preferred
•   Demonstrated experience with Network Access Controls (NAC), CISCO profiling ISE
•   Experience with Linux Operating Systems (OS) and Python scripting
•   Experience with a wide variety of network technologies and solutions architectures is a plus
•   Broad understanding of technical principles, theories and concepts in the networking field
•   Knowledge of state-of-the-art systems engineering principles and network design concepts
•   Cloud Service Provider and hybrid cloud experience (extending on premise networks to cloud providers such as AWS, Azure, Oracle and Google)
•   Strong proficiency with Network Access Control (NAC) platforms is a plus

Location: Herndon, Virginia
Type: Contract
Job #3950

Title: Network Architect SME
Location: Herndon, VA

Required Education, Experience, & Skills:
A Bachelor’s or Master’s degree are preferred with a minimum of Sixteen (16) year’s relevant experience with the following skillsets:
•   In depth knowledge of network architecture, design, and implementation
•   In depth knowledge of specific network technologies such as routing and switching
o   Familiar with routing protocols such as EIGRP, BGP, ISIS
o   Familiar with switching protocols such as STP, LACP, VTP
•   In depth knowledge of network automation
•   Cloud networking (AWS, Azure, Google)
•   Software-defined networking (SD-WAN)
•   Ability to provide technical guidance and mentorship to junior engineers
•   Experience with creating technical documentation such as designs, implementation plans, and technical notes
•   Ability to brief designs to review boards
•   Knowledge in deploying MPLS networks
•   Ability to learn, understand and implement new technologies
•   Independent learner with a proven ability to master complex technical concepts through self-study and practice
Preferred Education, Experience, & Skills:
•   Adept in network engineering, with focus on design, implementation, and management of complex networks
•   Experience with network architecture, design, and implementation in a large-scale environment
•   Proven track record of successfully resolving complex network issues and improving network performance
•   Willing to learn new technologies

Location: Dulles, Virginia
Type: Contract
Job #3949

Title: Systems Engineer (Voice)
Location: Dulles, VA

Required Education, Experience, & Skills:
We are actively seeking Systems Engineers with a minimum of 3 years' experience. Undergraduate or graduate degree in computer science or computer engineering. Specific skills may include the following:
•   Work in an enterprise IT environment with specific tasks related to Voice
•   Collaborate with network engineering and other telecom engineers in integration activities involving telephony or call center
•   Assist in the design, testing, and deployment of new voice infrastructure
•   Support implementation of next-generation voice technologies
•   Participate in the system security accreditation process
•   Provide certificate management support for secure systems
•   Assist with system upgrades, patching, and configuration
•   Support new site voice system standups
•   Support call center technology deployments, user training, and transition planning
•   Contribute to call routing and trunking design within enterprise voice platforms
•   Attend meetings with internal teams and clients to gather and understand voice system requirements
•   Monitor compliance with established standards, policies, and procedures
•   Gain hands-on experience with secure voice devices (e.g., VoIP phones, STEs, Viper) and infrastructure components (e.g., PBXs, encryption devices, call management servers)
•   Learn to provide Tier 4 engineering support under supervision
•   Learn and support platforms such as Skype for Business, Avaya Communication Manager, and other enterprise call center technologies
Preferred Education, Experience, & Skills:
•   Linux
•   SIP signaling and call flows
•   Secure Real-Time Transport Protocol
•   SIP
•   TCP/IP
•   H.323
•   DNS
•   DHCP
•   RTP
Certifications
•   MCSE certification
•   A+ certification
•   Network+ certification
•   CCNA, CCNP, ITIL, CCIE, HP, CCVP, CCDP, CATE, R&S
•   Cisco Voice certifications
•   Juniper certifications

Location: Annapolis Junction, Maryland
Type: Contract
Job #3948

Title: Software Engineer
Location: Annapolis Junction, MD
Compensation Range: $170 – $190K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Position Description:
Seeking a Software Engineer to join the software development team who will develop and sustain integrated, feature-rich capabilities that promote modernization of visualization and presentation tools. The software development team will provide application development and support to tools that allow mission analytic users to view existing data or contribute new information in a collaborative environment.

Position Required Skills:

Languages: Java, Python
Testing: Unit, Integration
Source Code Control (specifically Git)
IDE (IntelliJ or Eclipse)
Maven

Frameworks: Spring Boot, Flask

Familiarity with multiple of the following:

Analytical development: Machine Learning, Stream, Batch
Virtualization Environments: Kubernetes, Containers (Docker, Containerd), Cloud (AWS/HCI)
Streaming Frameworks: Kafka, Flink
MongoDB, ArangoDB, Redis, PostgreSQL

Desired Skills:

ElasticSearch

Required Education:

Bachelor’s degree in Computer Science or related discipline from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor’s degree.

Individual Capabilities Required:

Seven (7) years experience as a SWE, in programs and contracts of similar scope, type and complexity is required.
Analyze user requirements to derive software design and performance requirements
Debug existing software and correct defects
Provide recommendations for improving documentation and software development process standards
Design and code new software or modify existing software to add new features
Integrate existing software into new or modified systems or operating environments
Develop simple data queries for existing or proposed databases or data repositories

Location: Annapolis Junction
Type: Contract
Job #3947

Title: Junior Systems Engineer
Location: Annapolis Junction, MD
Compensation Range: $160 – $180K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Position Description:
The Systems Engineer supports the design, development, integration, and maintenance of complex technical systems, ensuring they operate reliably and meet organizational needs. This role works closely with cross‑functional teams to translate requirements into effective system solutions, troubleshoot issues, implement improvements, and maintain thorough technical documentation. The Systems Engineer evaluates system performance, supports lifecycle management, collaborates with vendors when needed, and ensures alignment with industry best practices. Strong analytical skills, attention to detail, and the ability to work in a dynamic technical environment are essential for success in this position.

Qualifications:

Bachelor’s degree in engineering and no experience, OR
- or a closely related technical field (e.g., computer science, mathematics, physics) plus 1 year of relevant experience.

Relevant experience must be in engineering systems over their lifecycle (for example, conception, design & development, testing, production, distribution/deployment, operation, maintenance & support, decommissioning).

Responsibilities:

Assist in requirements gathering and documentation under guidance from senior engineers.
Support development of system specifications and interface designs.
Contribute to integration and testing activities, including preparing test data and executing test procedures.
Help maintain technical documentation and configuration management records.
Participate in modeling and simulation tasks to validate basic system functions.
Collaborate with team members to troubleshoot issues and implement minor system updates.
Learn and apply engineering fundamentals (e.g., control theory, signal processing, networking) in practical scenarios.

Location: Annapolis Junction, Maryland
Type: Contract
Job #3946

Title: Systems Engineer
Location: Annapolis Junction, MD
Compensation Range: $200 -$220K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:

Bachelor’s degree in engineering or relevant technical field plus 3 years of relevant experience, OR
Master's degree plus 1 year of relevant experience
Relevant experience must be in engineering systems over their lifecycle (for example, conception, design & development, testing, production, distribution/deployment, operation, maintenance & support, decommissioning).

Responsibilities:

Drive system-level requirements analysis and lead CONOPS development for complex programs.
Lead requirements analysis and assist in developing CONOPS for system design.
Develop and maintain functional and physical architecture models for assigned subsystems.
Create and manage interface control documents (ICDs) and data models (e.g., XML schemas).
Plan and execute integration and acceptance testing, including writing test plans and procedures.
Conduct trade studies and risk assessments to support design decisions.
Collaborate with cross-functional teams to ensure system integration and lifecycle support.
Troubleshoot complex system issues and recommend corrective actions.
Maintain compliance with industry standards and customer requirements throughout the lifecycle.

Location: Annapolis Junction, Maryland
Type: Contract
Job #3945

Title: Senior Systems Engineer
Location: Annapolis Junction, MD
Compensation Range: $245 – $265K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:

Bachelor’s degree in engineering or relevant technical field plus 7 years of relevant experience, OR
Master's degree plus 5 years of relevant experience, or a Doctoral degree plus 3 years of relevant experience.
Relevant experience must be in engineering systems over their lifecycle (for example, conception, design & development, testing, production, distribution/deployment, operation, maintenance & support, decommissioning).

Responsibilities:

Drive system-level requirements analysis and lead CONOPS development for complex programs.
Architect and validate end-to-end system designs, including functional and physical architectures.
Oversee value modeling, trade studies, and risk analysis for major design decisions.
Define and approve test and evaluation frameworks, ensuring alignment with customer standards.
Lead integration and acceptance testing for large-scale systems and mentor junior engineers.
Serve as a technical authority for interface design, data modeling, and system specifications.
Apply advanced engineering principles (control theory, signal processing, networking, software development) to optimize system performance.
Provide strategic guidance on lifecycle management, system upgrades, and technology insertion.
Represent the organization in customer and vendor engagements, ensuring technical compliance and innovation.

Location: Annapolis Junction, Maryland
Type: Contract
Job #3944

Title: Expert Systems Engineer
Location: Annapolis Junction, MD
Compensation Range: $265 -$285K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:

Bachelor’s degree in engineering or relevant technical field plus 10 years of relevant experience, OR
Master's degree plus 8 years of relevant experience, or a Doctoral degree plus 6 years of relevant experience.
Relevant experience must be in engineering systems over their lifecycle (for example, conception, design & development, testing, production, distribution/deployment, operation, maintenance & support, decommissioning).

Responsibilities:

Drive system-level requirements analysis and lead CONOPS development for complex programs.
Architect and validate end-to-end system designs, including functional and physical architectures.
Oversee value modeling, trade studies, and risk analysis for major design decisions.
Define and approve test and evaluation frameworks, ensuring alignment with customer standards.
Lead integration and acceptance testing for large-scale systems and mentor junior engineers.
Serve as a technical authority for interface design, data modeling, and system specifications.
Apply advanced engineering principles (control theory, signal processing, networking, software development) to optimize system performance.
Provide strategic guidance on lifecycle management, system upgrades, and technology insertion.
Represent the organization in customer and vendor engagements, ensuring technical compliance and innovation.

Location: Annapolis Junction, Maryland
Type: Contract
Job #3943

Title: System Administrator
Location: Annapolis Junction, MD
Compensation Range: $105 -$125K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Position Description:
Provide support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring, and problem resolution for all the client / server / storage / network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis, and resolution of problems. Provides support for the escalation and communication of status to agency management and internal customers. Provides support for the dispatch system and hardware problems and remains involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs / loads operating system software, troubleshoot, maintains integrity and configures network components along with implementing enhancements to improve reliability and performance.

Qualifications:

Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
- Five (5) years of additional SA experience may be substituted for a bachelor's degree.
Five (5) years’ experience as a SA in programs and contracts of similar scope, type, and complexity is required.

Required Skills:

Experience installing, configuring, maintaining, troubleshooting, and using system security (container security, virtual machine security, security boundary enforcement), configuration, and reporting tools.
Experience with Windows/UNIX administration
Experience with the following tools is strongly preferred: ELK, Tripwire, VMware, RedHat SELinux security tool suite.

Location: Annapolis Junction
Type: Contract
Job #3942

Title: Senior System Administrator
Location: Annapolis Junction, MD
Compensation Range: $190 -$210K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Position Description:
Provide support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring, and problem resolution for all the client / server / storage / network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis, and resolution of problems. Provides support for the escalation and communication of status to agency management and internal customers. Provides support for the dispatch system and hardware problems and remains involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs / loads operating system software, troubleshoot, maintains integrity and configures network components along with implementing operating system enhancements to improve reliability and performance.

Qualifications:

Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
- Five (5) years of additional SA experience may be substituted for a bachelor's degree.
Ten (10) years’ experience as a SA in programs and contracts of similar scope, type, and complexity is required.

Responsibilities:

Provide support for implementation, troubleshooting and maintenance of IT systems.
Provide support for implementation, troubleshooting and maintenance of IT systems.
Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems.
Manage the daily activities of configuration and operation of IT systems.
Provide assistance to users in accessing and using IT systems.
Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems.
Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all the client/server/storage/network devices, mobile devices, etc.
Provide support for the escalation and communication of status to agency management and internal customers.
Optimize system operations and resource utilization and perform system capacity analysis and planning.
Provide in-depth experience in trouble-shooting IT systems.
Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
Provide support for the dispatch system and hardware problems and remains involved in the resolution process.
Configure and manage UNIX and Windows (or other applicable) operating systems and install/load operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.

Required Skills:

Three (3) years of experience installing, configuring, maintaining, troubleshooting, and using system security (container security, virtual machine security, security boundary enforcement), configuration, and reporting tools.
Experience with Windows/UNIX administration and configuration
Three (3) years of experience with the following tools is strongly preferred: ELK, Tripwire, VMware, RedHat SELinux security tool suite.

Location: Annapolis Junction
Type: Contract
Job #3941

Title: Expert System Administrator
Location: Annapolis Junction, MD
Compensation Range: $205 -$225K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Position Description:
Provide support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring, and problem resolution for all the client / server / storage / network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis, and resolution of problems. Provides support for the escalation and communication of status to agency management and internal customers. Provides support for the dispatch system and hardware problems and remains involved in the resolution process. Configures and manages UNIX and Windows operating systems and installs / loads operating system software, troubleshoot, maintains integrity and configures network components along with implementing operating system enhancements to improve reliability and performance.

Qualifications:

Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
- Five (5) years of additional SA experience on projects may be substituted for a bachelor's degree.
Fifteen (15) years’ experience as a SA in programs and contracts of similar scope, type, and complexity is required.

Responsibilities:

Provide support for implementation, troubleshooting and maintenance of IT systems.
Provide support for implementation, troubleshooting and maintenance of IT systems.
Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems.
Manage the daily activities of configuration and operation of IT systems.
Provide assistance to users in accessing and using IT systems.
Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems.
Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all the client/server/storage/network devices, mobile devices, etc.
Provide support for the escalation and communication of status to agency management and internal customers.
Optimize system operations and resource utilization and perform system capacity analysis and planning.
Provide in-depth experience in trouble-shooting IT systems.
Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
Provide support for the dispatch system and hardware problems and remains involved in the resolution process.
Configure and manage UNIX and Windows (or other applicable) operating systems and install/load operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.

Required Skills:

Five (5) years of experience installing, configuring, maintaining, troubleshooting, and using system security (container security, virtual machine security, security boundary enforcement), configuration, and reporting tools.
Five (5) years of experience with the following tools is strongly preferred: ELK, Tripwire, VMware, RedHat SELinux security tool suite.
Experience with senior system design support
Experience with Windows/UNIX Configuration

Location: Annapolis Junction
Type: Contract
Job #3940

Title: Network Engineer
Location: Annapolis Junction, MD
Compensation Range: $110 -$130K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Position Description:
Provide support on the Network Administration team including technical support to the Network Administrators and System Administrators, monitoring and maintaining the current infrastructure, improving system performance, and automating system administration. This positions also develops algorithms used in modules or incorporated into models associated with the research and development of technologies and systems involving one or more of the following areas: traditional circuit switched networks; data networks; access technologies; wireless systems; the media to carry such services; the protocols required for the completion of transport and services; operation of networks; management of network resources; provisioning of resources; traffic and/or performance modeling of such networks.

Qualifications:

A Bachelor’s Degree from an accredited college or university in Network Engineering or related discipline and three (3) years of relevant professional experience and training commensurate with network engineering curriculums or
A Master's degree from an accredited college or university in Network Engineering or related discipline and one (1) year of relevant professional experience providing Network Engineering support.
Four (4) years of relevant experience providing Network Engineering support may be substituted for a Bachelor’s degree (six years for a Master's).

Required Certifications:

Cisco Certified Network Professional (CCNP)

Responsibilities:

Provide technical support to the Network Administrators and System Administrators, monitor and maintain the current infrastructure, improve system performance, and automate system administration.
Provide input to the design of the organization’s network and mission architecture.
Conduct Computer Network Defense Operations, plan and install network upgrades, network design, and perform quality assurance and control.

Location: Annapolis Junction
Type: Contract
Job #3939

Title: Senior Network Engineer
Location: Annapolis Junction, MD
Compensation Range: $185 -$205K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:

A Bachelor’s Degree from an accredited college or university in Network Engineering or related discipline and ten (10) years of relevant professional experience and training commensurate with network engineering curriculums or
A Master's degree from an accredited college or university in Network Engineering or related discipline and eight (8) years of relevant professional experience providing Network Engineering support.
Four (4) years of relevant experience providing Network Engineering support may be substituted for a Bachelor’s degree (six years for a Master's).

Required Certifications:

Cisco Certified Network Professional (CCNP)

Responsibilities:

Provide technical support to the Network Administrators and System Administrators, monitor and maintain the current infrastructure, improve system performance, and automate system administration.
Provide input to the design of the organization’s network and mission architecture.
Conduct Computer Network Defense Operations, plan and install network upgrades, network design, and perform quality assurance and control.
Configure and maintain organization's network diagrams and accreditations.
Integrate hardware and software to satisfy ISO 9000 requirements and other DoD/IC regulations.
Oversee the support to all network equipment.
Support the integration of the analytic platform into the CND CDC.

Location: Annapolis Junction
Type: Contract
Job #3938

Title: Expert Network Engineer
Location: Annapolis Junction, MD
Compensation Range: $205 -$225K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:

A Master’s degree in Computer Science, Information Assurance, Information Security Systems Engineering, or a related discipline from an accredited college or university and ten (10) years of relevant professional experience providing Network Engineering support and training commensurate with network engineering curriculum.
- In lieu of a Master’s degree a Bachelor’s degree from an accredited college or university in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related discipline and an additional two (2) years relevant professional experience providing Network Engineering support may be substituted for a total of 12 years.
- In lieu of a Master’s or Bachelor’s degree an additional six (6) years of relevant experience providing Network Engineering support may be substituted for a total of 16 years.

Required Certifications:

Cisco Certified Network Professional (CCNP)
An Information Assurance Technical (IAT) level III baseline certification as defined by DoD 8570.01-M is required.

Responsibilities:

Provide technical support to the Network Administrators and System Administrators, monitor and maintain the current infrastructure, improve system performance, and automate system administration.
Provide input to the design of the organization’s network and mission architecture.
Conduct Computer Network Defense Operations, plan and install network upgrades, network design, and perform quality assurance and control.
Configure and maintain organization's network diagrams and accreditations.
Integrate hardware and software to satisfy ISO 9000 requirements and other DoD/IC regulations.
Oversee the support to all network equipment.
Support the integration of the analytic platform into the CND CDC.
Design modules representing traditional circuit switched networks.
Lead large efforts and installation projects of dynamic requirements and scale.
Develop algorithms for models using networking and/or telecommunications technologies and systems.

Location: Annapolis Junction
Type: Contract
Job #3937

Title: Junior Software Engineer
Location: Annapolis Junction, MD
Compensation Range: $75 -$95K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Position Description:
The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. Works individually or as part of a team. Reviews and tests software components for adherence to the design requirements and documents test results. Utilizes software development and software design methodologies appropriate to the development environment. Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.

Qualifications:

Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
- Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree.
No demonstrated experience is required.

Responsibilities:

Analyze user requirements to derive software design and performance requirements
Debug existing software and correct defects
Provide recommendations for improving documentation and software development process standards
Design and code new software or modify existing software to add new features
Integrate existing software into new or modified systems or operating environments
Develop simple data queries for existing or proposed databases or data repositories

Required Skills:

Experience developing with Java SE, Python, and Shell/Bash for application development and automation.
Experience with JavaScript, HTML5, and CSS3 for building and enhancing web interfaces.
Experience using Git, Nexus, Maven, JUnit, and modern IDEs (e.g., Eclipse) for version control, build management, testing, and development workflows.

Location: Annapolis Junction
Type: Contract
Job #3936

Title: Software Engineer
Location: Annapolis Junction, MD
Compensation Range: $150 -$170K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:

Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
- Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree.
Seven (7) years’ experience as a SWE, in programs and contracts of similar scope, type, and complexity is required.

Responsibilities:

Analyze user requirements to derive software design and performance requirements
Debug existing software and correct defects
Provide recommendations for improving documentation and software development process standards
Design and code new software or modify existing software to add new features
Integrate existing software into new or modified systems or operating environments
Develop simple data queries for existing or proposed databases or data repositories
Serve as team lead at the level appropriate to the software development process being used on any particular project
Design or implement complex database or data repository interfaces/queries
Develop or implement algorithms to meet or exceed system performance and functional standards
Assist with developing and executing test procedures for software components
Develop software solutions by analyzing system performance standards, confer with users or system engineers; analyze systems flow, data usage and work processes; and investigate problem_ areas
Modify existing software to correct errors, to adapt to new hardware, or to improve its performance
Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcomes and consequences of design

Required Skills:

Five years of experience developing with Java SE, Python, Git, Shell/Bash, Nexus, Maven, JavaScript/HTML5/CSS3, JUnit, and modern IDEs.
Five years of experience in software architecture development, requirements analysis, code generation, process execution and evaluation, and technology selection and assessment.
Five years of experience with containers and orchestration technologies (e.g., Docker, Kubernetes, OpenShift, GitLab CI), including microservices, CI/CD pipelines, automated testing integration (e.g., SonarQube), automated deployments and failure rollbacks, and Kubernetes-based deployments.
Five years of experience supporting Agile development programs that deliver new capabilities in each Sprint.
Experience with Spring Framework, Spring Tool Suite, Grit, Jenkins, Hibernate, MySQL, Web Services, and Google Web Toolkit or Vaadin is a plus.

Location: Annapolis Junction
Type: Contract
Job #3935

Title: Senior Software Engineer (DevOps & Automation)
Location: Annapolis Junction, MD
Compensation Range: $210 -$230K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:

Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
- Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree.
Fourteen (14) years’ experience as a SWE, in programs and contracts of similar scope, type, and complexity is required.

Responsibilities:

Analyze user requirements to derive software design and performance requirements
Debug existing software and correct defects
Provide recommendations for improving documentation and software development process standards
Design and code new software or modify existing software to add new features
Integrate existing software into new or modified systems or operating environments
Develop simple data queries for existing or proposed databases or data repositories
Write or review software and system documentation
Serve as team lead at the level appropriate to the software development process being used on any particular project
Design or implement complex database or data repository interfaces/queries
Develop or implement algorithms to meet or exceed system performance and functional standards
Assist with developing and executing test procedures for software components
Develop software solutions by analyzing system performance standards, confer with users or system engineers; analyze systems flow, data usage and work processes; and investigate problem_ areas
Modify existing software to correct errors, to adapt to new hardware, or to improve its performance
Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design
Design or implement complex algorithms requiring adherence to strict timing, system resource, or interface constraints; Perform quality control on team products
Implement recommendations for improving documentation and software development process standards
Oversee one or more software development teams and ensure the work is completed in accordance with the constraints of the software development process being used on any particular project
Confer with system engineers and hardware engineers to derive software requirements and to obtain information on project limitations and capabilities, performance requirements and interfaces
Coordinate software system installation and monitor equipment functioning to ensure operational specifications are met

Required Skills:

Seven years of experience maintaining and improving build and deployment pipelines using CI/CD tools, including automated testing integration (e.g., SonarQube), automated deployments and failure rollbacks, and Kubernetes-based deployments.
Seven years of experience supporting programs that use Agile development methodology.
Seven years of experience working with container images and platforms such as Kubernetes, Docker, and OpenShift.
Seven years of experience maintaining operational environments and using monitoring tools and dashboards such as Kibana, Grafana, and Nagios.
Seven years of experience administering development and staging environments.
Seven years of experience working with Python, Bash, and Shell scripting.

Location: Annapolis Junction
Type: Contract
Job #3934

Title: Senior Software Engineer (Full-Stack)
Location: Annapolis Junction, MD
Compensation Range: $210 -$230K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:

Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
- Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree.
Fourteen (14) years’ experience as a SWE, in programs and contracts of similar scope, type, and complexity is required.

Responsibilities:

Analyze user requirements to derive software design and performance requirements
Debug existing software and correct defects
Provide recommendations for improving documentation and software development process standards
Design and code new software or modify existing software to add new features
Integrate existing software into new or modified systems or operating environments
Develop simple data queries for existing or proposed databases or data repositories
Write or review software and system documentation
Serve as team lead at the level appropriate to the software development process being used on any particular project
Design or implement complex database or data repository interfaces/queries
Develop or implement algorithms to meet or exceed system performance and functional standards
Assist with developing and executing test procedures for software components
Develop software solutions by analyzing system performance standards, confer with users or system engineers; analyze systems flow, data usage and work processes; and investigate problem_ areas
Modify existing software to correct errors, to adapt to new hardware, or to improve its performance
Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design
Design or implement complex algorithms requiring adherence to strict timing, system resource, or interface constraints; Perform quality control on team products
Implement recommendations for improving documentation and software development process standards
Oversee one or more software development teams and ensure the work is completed in accordance with the constraints of the software development process being used on any particular project
Confer with system engineers and hardware engineers to derive software requirements and to obtain information on project limitations and capabilities, performance requirements and interfaces
Coordinate software system installation and monitor equipment functioning to ensure operational specifications are met

Required Skills:

Seven years of experience developing with Java SE, Python, Git, Shell/Bash, Nexus, Maven, JavaScript/HTML5/CSS3, JUnit, and modern IDEs.
Seven years of experience in software architecture development, requirements analysis, code generation, process execution and evaluation, and technology selection and assessment.
Seven years of experience with containers and orchestration technologies (e.g., Docker, Kubernetes, OpenShift, GitLab CI), including microservices, CI/CD pipelines, automated testing integration (e.g., SonarQube), automated deployments and failure rollbacks, and Kubernetes-based deployments.
Seven years of experience supporting Agile development programs that deliver new capabilities in each Sprint.
Experience with Spring Framework, Spring Tool Suite, Grit, Jenkins, Hibernate, MySQL, Web Services, and Google Web Toolkit or Vaadin is a plus.

Location: Annapolis Junction, Maryland
Type: Contract
Job #3933

Title: Software Engineer 3
Location: Annapolis Junction, MD
Compensation Range: $230 -$250K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:

Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
- Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree.
Twenty (20) years’ experience as a SWE, in programs and contracts of similar scope, type, and complexity is required.

Responsibilities:

Analyze user requirements to derive software design and performance requirements
Debug existing software and correct defects
Provide recommendations for improving documentation and software development process standards
Design and code new software or modify existing software to add new features
Integrate existing software into new or modified systems or operating environments
Develop simple data queries for existing or proposed databases or data repositories
Write or review software and system documentation
Serve as team lead at the level appropriate to the software development process being used on any particular project
Design or implement complex database or data repository interfaces/queries
Develop or implement algorithms to meet or exceed system performance and functional standards
Assist with developing and executing test procedures for software components
Develop software solutions by analyzing system performance standards, confer with users or system engineers; analyze systems flow, data usage and work processes; and investigate problem_ areas
Modify existing software to correct errors, to adapt to new hardware, or to improve its performance
Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design
Design or implement complex algorithms requiring adherence to strict timing, system resource, or interface constraints; Perform quality control on team products
Implement recommendations for improving documentation and software development process standards
Oversee one or more software development teams and ensure the work is completed in accordance with the constraints of the software development process being used on any particular project
Confer with system engineers and hardware engineers to derive software requirements and to obtain information on project limitations and capabilities, performance requirements and interfaces
Coordinate software system installation and monitor equipment functioning to ensure operational specifications are met
Recommend new technologies and processes for complex software projects
Serve as the technical lead of multiple software development teams
Select the software development process in coordination with the customer and system engineering
Ensure quality control of all developed and modified software
Delegate programming and testing responsibilities to one or more teams and monitor their performance

Required Skills:

Ten years of experience developing with Java SE, Python, Git, Shell/Bash, Nexus, Maven, JavaScript/HTML5/CSS3, JUnit, and modern IDEs.
Ten years of experience in software architecture development, requirements analysis, code generation, process execution and evaluation, and technology selection and assessment.
Ten years of experience with containers and orchestration technologies (e.g., Docker, Kubernetes, OpenShift, GitLab CI), including microservices, CI/CD pipelines, automated testing integration (e.g., SonarQube), automated deployments and failure rollbacks, and Kubernetes-based deployments.
Ten years of experience supporting Agile development programs that deliver new capabilities in each Sprint.
Experience with Spring Framework, Spring Tool Suite, Grit, Jenkins, Hibernate, MySQL, Web Services, and Google Web Toolkit or Vaadin is a plus.

Type: Contract
Job #3932

Title: Cloud Software Engineer 3 (Big-Data)
Location: Annapolis Junction, MD
Compensation Range: $225 -$245K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Benefits Overview:
Cornerstone Defense offers a very comprehensive benefits package including, but not limited to: Medical, Dental and Vision Plans * Generous PTO Policy * 401(k) * HSA and FSA options * Life and Disability Insurance * Tuition Reimbursement and Training * Perks at Work Discount Program * Referral Program * Leads Generation Program * CollegeAmerica 529 * Fitness Reimbursement Program * Travel Assistance * Norton Lifelock Benefit Solutions * Life Planning Financial & Legal Services *

Position Description:
Responsible for designing, developing, and maintaining cloud-based and distributed computing solutions for mission-critical systems. Duties include architecting scalable cloud solutions, implementing Big-Data technologies, managing multi-node installations, and ensuring security and performance in high-compliance environments.

Qualifications:

12+ years software engineering experience in similar programs; Bachelor’s in Computer Science or related field required.
4+ years in Big-Data cloud technologies and/or distributed computing.
Substitutions: 4 years’ cloud experience for degree; Master’s for 2 years’ experience; Cloudera Hadoop Developer cert for 1 year cloud experience.

Required Skills & Experience:

Cloud/Distributed Computing:
• 2+ years Information Retrieval (IR)
• 1+ year with Cloud Big Table, Distributed File System, Coordination Frameworks
• 1+ year implementing MapReduce analytics
• Architecting, debugging, and managing multi-node cloud installations
Programming & Development:
• Object-Oriented Design (Java), RESTful APIs, Maven
• Data formats: XML, JSON, CSV, Avro
• Debugging/profiling JVM, concurrent programming
Cloud Technologies:
• YARN, J2EE, MapReduce, Zookeeper, HDFS, HBase, JMS
• IR tools: Apache Lucene, Solr, MongoDB
Infrastructure & Security:
• Linux/UNIX (CentOS, RedHat)
• Virtualization (VMWare, VirtualBox)
• IaC tools: Ansible, Salt, Terraform
• Security: Firewalls, PKI, server authentication
SIGINT Experience:
• Familiarity with collection disciplines, geolocation, emitter identification, and dataflow architectures

Type: Contract
Job #3931

Software Engineer – ENG06
Aurora, CO
Active TS/SCI
Compensation Range: $170,000 – $200,000

Job Responsibilities:
• Lead program’s baseline modernization efforts.
• Provide technical direction and design to software agile development teams, and other engineering personnel.
• Mentor and guide senior and junior engineers.
• Generate software cost and schedule estimates to support future development bids using techniques such as parametric analysis of SLOC, hours, or other metrics
• Modern DevSecOps and Continuous Integration/Continuous Delivery techniques.
• Software lifecycle practices on defense projects.
• Advance software technologies.
Basic Qualifications:
• A Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) and 10 years of relevant software engineering experience.
• Experience as a Software Architect.
• Experience developing software using Java or C++.
• Experience with cloud environments and Kubernetes.
• Experience with message brokers such as RabbitMQ, ActiveMQ, or Kafka.
• Experience with enterprise integration patterns.
• Experience with System Engineering processes such as requirements management, use case development, and trade studies.
• Experience with Cameo Modeling using Systems Modeling Language (SysML).
• Experience with the SAFe Agile software development methodology.
• An active and transferable U.S. government issued TS/SCI security clearance is required prior to start date. An active and transferable U.S. government issued Top Secret security clearance that can be crossed over to a TS/SCI security clearance prior to start is also acceptable. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
Preferred Qualifications:
• Experience with SIGINT, Digital Communication, or digital signal processing software development.
• Experience programming solutions in C++, Java, Python, and GO.
• Experience with Cameo Modeling using the Unified Architecture Framework (UAF).
• Experience with DevOps, Continuous Integration/Continuous Development, and automated test.
• Experience with Atlassian Tools.
Company Benefits:
Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs. These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to: A 401(K) plan with a company match, tuition and training assistances, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources.

Type: Contract
Job #3930

Integration & Test Engineer – ENG04
Aurora, CO
Active TS/SCI
Compensation Range: $115,000 – $145,000

Job Responsibilities:
• In this role, you will work with a cross-disciplinary team of engineers who are leading the industry in ground systems solutions.
• Conduct integration and test activities as a member of an Agile Release Train (ART) team
• Identify technical issues during software and hardware integration and collaborate with fellow engineers to drive solutions to closure
• Development of automated test scripts and their execution
• Troubleshooting and debugging issues
• Work in an Agile program environment
Basic Qualifications:
• Typically requires a Bachelor's Degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 5 years of prior relevant experience
• Experience with systems integration and test for a software product in an Agile environment, including regression testing, test scripting, and/or test automation tools
• Experience with hands-on Integration and Test engineering
• Experience troubleshooting and debugging a software-based system or product
• Experience with Linux Red Hat, Python, or Perl
• Active TS/SCI Security Clearance
Preferred Qualifications:
• Experience working within a CI/CD environment
• Experience working in a Satellite Ground System development or operations environment
• Development experience in project domain (e.g., mission management ground systems, space-based ISR platforms)
• Experience with Atlassian tools (Jira, Confluence, Bitbucket)
• Experience in Test Automation (Cucumber, Gherkin, Zypher)
• Experience with Java, C++, Python, Linux operating system, Cloud environments
Company Benefits:
Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs. These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to: A 401(K) plan with a company match, tuition and training assistances, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources.

Type: Contract
Job #3929

Integration & Test Engineer – ENG02
Aurora, CO
Active TS/SCI
Compensation Range: $85,000 – $105,000

Job Responsibilities:
• In this role, you will work with a cross-disciplinary team of engineers who are leading the industry in ground systems solutions.
• Conduct integration and test activities as a member of an Agile Release Train (ART) team
• Identify technical issues during software and hardware integration and collaborate with fellow engineers to drive solutions to closure
• Development of automated test scripts and their execution
• Troubleshooting and debugging issues
• Work in an Agile program environment
Basic Qualifications:
• Typically requires a Bachelor's Degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 2 years of prior relevant experience
• Experience with systems integration and test for a software product in an Agile environment, including regression testing, test scripting, and/or test automation tools
• Experience with hands-on Integration and Test engineering
• Experience troubleshooting and debugging a software-based system or product
• Experience with Linux Red Hat, Python, or Perl
• Active TS/SCI Security Clearance
Preferred Qualifications:
• Experience working within a CI/CD environment
• Experience working in a Satellite Ground System development or operations environment
• Development experience in project domain (e.g., mission management ground systems, space-based ISR platforms)
• Experience with Atlassian tools (Jira, Confluence, Bitbucket)
• Experience in Test Automation (Cucumber, Gherkin, Zypher)
• Experience with Java, C++, Python, Linux operating system, Cloud environments
Company Benefits:
Cornerstone Defense offers a comprehensive list of benefits, designed to give employees and their families several options to choose from when selecting benefits that best fit their needs. These offerings include not only a full suite of the traditional Medical/Dental/Vision insurances, but also a number of other benefits and perks to include, but not limited to: A 401(K) plan with a company match, tuition and training assistances, paid vacation/leave, a fitness reimbursement program, college savings plan, commuter benefits, financial advisory services, flex spending accounts, health savings accounts, STD/LTD coverage, life and AD&D insurance, employee assistance programs, life financial planning assistance, and legal resources.