Cornerstone Defense | Technically Innovative Solutions

Type: Contract
Job #3890

Software Engineer IV
State College, PA
Active TS/SCI

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.

In the Java/Python AI/ML/Data Science Software Engineering role, you will design, develop, and test AI/ML, Java and Python code in a Linux, Agile, DevOps environment. We are at the forefront of aerospace and defense technology. Our Satellite Ground Systems Team plays a pivotal role in ensuring communication, surveillance, and defense capabilities through cutting-edge satellite systems. We invite you to be part of a team that pushes the boundaries of what's possible. Due to the security clearance requirement, this is an onsite position in our State College, PA office.

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 AI, ML, 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.

Preferred Qualifications:
• Experience working in an AI/ML/Data Science role
•Strong analytical skills and proactive problem-solving abilities, with a deep understanding of AI/ML technologies, cloud architecture, and enterprise software.
• Experience working with large datasets and performing data analysis.
• Security+ certification.
• Experience with Git, Jenkins, Docker, Kubernetes.
• Experience with the Atlassian Tool Suite (e.g. JIRA, Confluence, BitBucket).
• Experience with cloud computing platform (e.g. AWS or Azure).
• Experience with satellite communication systems and protocols is highly preferred.
• Familiarity with secure coding practices, especially in a defense or aerospace setting.

Type: Contract
Job #3889

Software Engineer
Aurora, CO
TS/SCI w/ Poly
Compensation Range: $85,000 – $115,000

Job Responsibilities:
• Supports troubleshooting, maintenance, and documentation of software applications
• Expected to troubleshoot and isolate sources of system errors or unexpected performance
• Performs testing, integration and delivery of new software baselines
• Ability to perform in-depth analysis and assessment with an end-to-end perspective of a complex system in operations
• Active and transferrable TS/SCI with polygraph U.S. government issued clearance is required prior to start date
Basic Quals:
• 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 coding software in Java, or C++
• Experience in software development and/or software integration
Preferred Quals:
• Experience with software configuration management systems such as git or bitbucket
• Ability to work in a structured configuration-controlled environment, primarily focused on the support and maintenance of real-time software applications on an Operations and Maintenance (O&M) contract
• Linux/Unix, GIT, and SQL experience
• JIRA, BitBucket and Confluence experience desired

Type: Contract
Job #3888

Software Engineer
Aurora, CO
TS/SCI w/ Poly
Compensation Range: $125,000 – $155,000

Job Responsibilities:
• Supports troubleshooting, maintenance, and documentation of software applications
• Expected to troubleshoot and isolate sources of system errors or unexpected performance
• Performs testing, integration and delivery of new software baselines
• Ability to perform in-depth analysis and assessment with an end-to-end perspective of a complex system in operations
• Active and transferrable TS/SCI with polygraph U.S. government issued clearance is required prior to start date
Basic Quals:
• 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 coding software in Java, or C++
• Experience in software development and/or software integration
Preferred Quals:
• Experience with software configuration management systems such as git or bitbucket
• Ability to work in a structured configuration-controlled environment, primarily focused on the support and maintenance of real-time software applications on an Operations and Maintenance (O&M) contract
• Linux/Unix, GIT, and SQL experience
• JIRA, BitBucket and Confluence experience desired

Type: Contract
Job #3887

Systems Engineer
Aurora, CO
TS/SCI
Compensation Range: $85,000 – $115,000

Job Responsibilities:
• Analyze and define how the system works creating use cases
• Decompose requirements, define system interfaces and help determine how requirements will be validated and verified by the test team
• Provide engineering support for the execution of a portion of the programs test program including test processes and baseline definition and test architecture design
• Support regression testing across deliverable releases to the program baseline
• Support and attend technical reviews and technical interchanges in support of the program
Basic Quals:
• Typically requires a Bachelor's Degree in Systems, Mechanical, Aerospace, or Electrical Engineering, or a related field and minimum 2+ years of prior relevant experience
• Experience with systems engineering lifecycle, roles and functions, with specific experience in one or more of the following areas: Concept of Operations (ConOps) development, requirements definition and management, functional analysis or interface definition and control
• Development experience on a government contract with experience in systems engineering
• Experience with Agile principles, to include Agile systems engineering practices and understanding of Agile roles
• Development experience in project domain (e.g., mission management ground systems, space-based ISR platforms)
• Experience working in an Agile development environment and with Agile development tools (e.g., Jira, Confluence, Bitbucket, etc.)
• Active TS/SCI Security clearance
Preferred Quals:
• Experience with MBSE tools (e.g., Cameo Systems Modeler)
• Experience with requirements management in DOORS or other requirements databases
• Good oral and written communication skills as well as good collaboration skills and the ability to work in a team environment

Type: Contract
Job #3886

System Safety Engineer
Aurora, CO
Active Secret
Compensation Range: $150,000 – $190,000

Job Responsibilities:
• Design of concise, testable safety requirements or providing safety analysis of existing requirements
• Performing System Safety Program or Design analyses
• Placement in challenging or under-performing programs with the expectation of improvement of the safety program
• Managing multiple-large system safety programs or a safety product line
• Collaborating with other disciplines during program technical execution
• Interfacing with key stakeholders (e.g. customers, program offices, subcontractors, vendors)
• Mentoring Multiple Jr. Engineers
• Preparing Safety Assessment Reports and Safety Program Briefs for Customer Approval
• Streamlining processes and reports across a product line for improved efficiency
• Briefing safety of the program at technical reviews and as part of the safety approval process
• Interpreting system requirements, customer specifications and military standards
• Preparing internal and customer reports describing various analyses relevant to the System Safety program
• Collaborating across multiple disciplines to gain a full understanding of product architecture and design On-Site Means they will be working at a Raytheon Facility.

Qualifications:
• Typically Requires: Bachelor's degree and 8 years of relevant experience OR an Associate’s degree and 10 years of relevant experience OR an advanced degree in a related field and minimum 5 years’ experience. In absence of a degree, 12 years of relevant experience is required.
• Experience with: System Safety Engineering, System Engineering, Software or Firmware Engineering, or equivalent Safety Engineering experience in areas such as Aerospace, Automotive or Medical Device.
• The ability to obtain and maintain a US security clearance. US citizenship is required as only US citizens are eligible for a security clearance
• System thinking and the desire to influence the program as a whole
• Experience with industry System Safety Programs (especially in DoD or Aerospace fields) • Strong written, verbal and presentation skills
• Strong interpersonal and project management skills, with the ability to manage a safety program and provide direction to supporting safety personnel
• Degree in Science, Technology, Engineering or Mathematics (STEM)
• Experience working with US Military programs
• Strong analytical and problem solving skills

Type: Contract
Job #3885

Software Engineer
Aurora, CO
Active TS/SCI
Compensation Range: $175,000 – $200,000

Job Responsibilities:
• A breadth of advanced software technologies and techniques including multi-tiered architectures, AWS web services, and microservice software design.
• Modern DevSecOps and Continuous Integration/Continuous Delivery techniques.
• Software lifecycle practices for large-scale defense projects.
• Satellite ground system technologies including command & telemetry, flight dynamics, planning and scheduling, and spacecraft operations.

Basic Qualifications:
• Requires a Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) and 10 years of relevant software engineering experience.
• Experience developing object-oriented software using Java and C++.
• Experience developing software in a Linux environment.
• Experience with Atlassian tools such as Confluence, Jira, and Bitbucket.
• Experience developing software on the M2C2 or Rushmore program
• An active and transferable U.S. government issued 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.

Preferred Qualifications:
• Software development lifecycle experience using the SAFe Agile methodology.
• Experience developing software using Python.
• Experience with AMMP, Cucumber, GIT, Khaos (M2C2 FD), Kubernetes, Oracle, Postgres, SonarQube, Weblogic, WIGS/Angular.
• Experience with cybersecurity, DevSecOps, and CI/CD processes.
• Experience working with full stack development.

Location: Dahlgren, Virginia
Type: Contract
Job #3884

Title: Technical Support Specialist
Location: Dahlgren, VA
*Clearance: *Active Secret Clearance 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.

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 *

Two (2) years of related IT/Help Desk Support experience

Technical Proficiency

Networking concepts, protocols, and security methodologies
System performance and availability monitoring
Network access, identity, and access management (e.g., PKI)
Remote access technologies
Systems administration concepts
Common network tools (ping, traceroute, nslookup)
Electronic device functionality (computers, network components, peripherals)
OS command line execution (ipconfig, netstat)
Cloud computing service/deployment models (SaaS, IaaS, PaaS)
Network protocols (TCP/IP, DHCP, DNS)

Security Awareness

Cybersecurity principles, threats, and vulnerabilities
National/international cybersecurity laws, regulations, and ethics
Organizational IT security policies (account management, access control)
Data security standards (PII, PCI, PHI)
Information classification, compromise procedures, and incident management processes

Support & Service Delivery

Risk management (assessment and mitigation)
Incident data analysis and trend identification
Service desk best practices
Customer service and communication skills
Technical training development and delivery
Incident tracking and solution database management
Trouble ticketing system utilization (incident, problem, event documentation)
SOP development and maintenance

Location: Dahlgren, Virginia
Type: Contract
Job #3883

Title: Systems Administrator
Location: Dahlgren, VA / San Diego, CA / Norfolk, VA (3 different locations)
*Clearance: *Active Secret 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.

Four (4) years of system management experience

Network Infrastructure

Networking concepts, protocols, and security methodologies
LAN/WAN architecture and pathways
Bandwidth management principles
Network traffic flow (TCP/IP, OSI, ITIL)
Performance tuning tools and techniques
Remote access technologies
VPN security
Network protocols (TCP/IP, DHCP, DNS, directory services)
Common tools (ping, traceroute, nslookup)
File system implementations (NTFS, FAT, EXT)
Virtualization technologies and VM management

Security Expertise

IT security principles (firewalls, DMZs, encryption)
Network security architecture (topology, protocols, defense-in-depth)
Cybersecurity principles, threats, and vulnerabilities
National/international cybersecurity laws, regulations, and policies
Organizational IT security policies (account management, access control)
Data security standards (PII, PCI, PHI)
System administration, network, and OS hardening techniques
Software-based protection tools (firewalls, antivirus, anti-spyware)
Transmission methods (Bluetooth, RFID, IR, Wi-Fi) and jamming techniques

System Administration

Server and client operating systems
Systems administration concepts and best practices
Enterprise IT architecture
Diagnostic tools and fault identification
OS command line utilities (ipconfig, netstat, dir, nbtstat)
System maintenance procedures (cleaning, disk checks, reboots, backups)

Cloud Computing

Service models (SaaS, IaaS, PaaS)
Deployment models (private, public, hybrid)
Cloud security strategy and architecture

Location: Dahlgren, Virginia
Type: Contract
Job #3882

Title: Information Systems Security Analyst
Location: Dahlgren, VA
*Clearance: *Active Secret Clearance 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.

Four (4) years of experience in Cybersecurity.

Core Competencies

Cybersecurity principles, threats, vulnerabilities, and risk management processes
Encryption algorithms (IPSEC, AES, GRE, IKE, MD5, SHA, 3DES)
Data backup/recovery tools and disaster recovery planning
Host/network access controls (ACLs)
Incident response and intrusion detection methodologies
Network traffic analysis and protocols (TCP/IP, OSI, ITIL)
System/application threats (buffer overflow, cross-site scripting, SQL injection)
Security architecture and enterprise reference models
National/international cybersecurity laws, policies, and ethics
Penetration testing principles, tools, and techniques

Technical Proficiency

Networking concepts, protocols, and security methodologies
System performance monitoring and ISO standards
System life cycle management, software security, usability
System/server administration and engineering methods
Server/client operating systems
Network security architecture (topology, defense-in-depth)
Network systems management tools
System administration, network, and OS hardening techniques
Cloud computing models (SaaS, IaaS, PaaS) and cloud security strategies
Data security standards (PII, PCI, PHI)

Leadership & Management

Information security and project management principles
Resource management techniques
Risk assessment and mitigation processes
Secure acquisitions, procurement, and supply chain risk management
IT supply chain security and compliance with laws, directives, and guidelines
Organizational risk tolerance and management approaches
Critical IT procurement requirements

Location: Dahlgren, Virginia
Type: Contract
Job #3881

Title: Program Manager (PM)
Location: Dahlgren, VA

*Clearance: *Active Top Secret Clearance 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.

Five (5) years of experience in Contract Management.
Current PMP Certification
Familiarity with Navy Network systems design, development, test and evaluation, and training of systems.
Overseeing both the technical and administrative aspects of Government contract performance.
Oversight of timeliness and quality of contract service and data deliverables.
Oversight of contract schedule and cost.
Experience as a manager of a team of skilled professional, technical, and support personnel involved in Navy Network.
Demonstrated ability to interface effectively with customers and to deliver quality products on time and within budget.
Demonstrated ability to plan, design, coordinate, control the progress of project work to meet sponsor objectives, and manage a diverse technical workforce and team consisting of multiple skill sets.

Location: Annapolis Jct, Maryland
Type: Contract
Job #3878

Title: ELM Technical Manager
Location: Annapolis Junction, MD
Salary Range: $200 – $220K

Description:
Oracle’s Government, Defense and Intelligence is seeking consultants with Oracle PeopleSoft application functional, development and/or administration experience to support a customer’s Enterprise Learning Management (ELM) PeopleSoft installation. The role provides PeopleSoft software/system functional and development consulting services at client location. Those who excel in this role are motivated self-starters who love to solve challenging problems and are comfortable working directly with customers and executive leadership. This role requires a strong functional knowledge of PeopleSoft ELM and its as well as the following diverse skill sets:

Excellent interpersonal skills to interact with customers, executive leaders, and team members.
Ability to assess the high-level architectural design, research potential implementation road maps, and conduct feasibility assessments.
Ability to translate technical requirements reflecting customers desired outcomes helping developers produce the best product possible
Drive towards customer buy in and drive development processes when needed
Excellent analytical and creative problem-solving skills for design, creation and testing of software.
Ability to work independently and as part of a team.
Deep functional knowledge across HCM, Financials and Education applications. Specifically with the PeopleSoft ecosystem with strong experience to make recommendations for low cost and long-term maintenance
Deep reporting background and expertise with understanding of various technologies spanning vendors. Understanding data warehouse theory and concepts. Work with end users to generate reporting artifacts, as well as explain concepts and help users with little or no technical background.

Qualifications:

Minimum 8 years of technical experience relevant to this position
Undergraduate degree or equivalent experience preferred
Product or technical expertise in PeopleSoft ELM, HR and Financials, SQL, PeopleTools
Understanding of selective adoption and Peoplesoft Update Manager (PUM), Peoplesoft Query Manager, ELM data dictionary
Ability to communicate effectively and build rapport with team members and clients
Project Management background managing small to medium size projects and project teams.
Experience with entire software development life cycle.
Passion for technology, the curiosity and willingness to constantly learn new skills, work with new tools and discover new and innovative approaches to solving complex technical challenges.
The ability to articulate technical concepts to non-technical audiences and, vice versa, translate functional needs to technical solutions.

Desired Qualifications:

Strong in programming fundamentals and have good understanding of database concepts.
Strong troubleshooting skills.
Exposure to Agile/SCRUM methodologies.
Cloud experience

Type: Contract
Job #3877

Software Engineer
State College, PA
Active TS/SCI
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.

Basic Qualifications:
• Active and transferable U.S. government issued 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 two (2) years of Software Engineering experience.
• Experience in object-oriented software design and development using Java and Python in a Linux environment.
• Experience with unit testing tools (e.g., JUnit).
• Exposure to AI/ML and Data Science.
• Experience working in an agile environment
Preferred Qualifications:
• Experience working in an AI/ML/Data Science role
•Strong analytical skills and proactive problem-solving abilities, with a deep understanding of AI/ML technologies, cloud architecture, and enterprise software.
• Experience working with large datasets and performing data analysis.
• Security+ certification.
• Experience with Git, Jenkins, Docker, Kubernetes.
• Experience with the Atlassian Tool Suite (e.g. JIRA, Confluence, BitBucket).
• Experience with cloud computing platform (e.g. AWS or Azure).
• Experience with satellite communication systems and protocols is highly preferred.
• Familiarity with secure coding practices, especially in a defense or aerospace setting.

Location: Tysons, Virginia
Type: Contract
Job #3872

Title: Information Systems Security Engineer
Location: Tysons, 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.

Description: The Information Systems Security Engineer supports the client and the team in defining security requirements; advises on, executes and oversees cybersecurity, information assurance (IA) programs, authority to operate (ATO), accreditation and authorization (A&A), User Activity Monitoring (UAM), and system security plans.
Responsibilities:

Lead for automated security testing efforts leveraging Sponsors enterprise scanning tools
Responsible for creation and delivery of the Monthly Vulnerability Scans
Responsible for creation and delivery of the Monthly Privileged Users and Admin report
Overall Lead for ensuring systems are secure by protecting data and ensuring need to know
Responsible for working with Tech team on creating any necessary POAM's
Helps PM with the Contract Security Plan
Works with PM and Sponsor's Information System Security Manager and INFOSEC Program Council as necessary
Authors and maintains the programs System Security Plan (SSP) for A&A
Provides the required security education and plan to sponsor for the program
Authors and maintains the programs Automated Information Systems (AIS) Plan

Required Skills:

4-7 years’ experience with:
Application security standards and processes
Accreditation and Authorization (A&A), including documentation, POAMs, and remediation
Application and data security requirements for authorities to develop and operation systems (ATD, ATO) such as encryption, role-based security, information assurance, and monitoring/auditing/reporting
Coordination with engineering team to implement security requirements
Agile / Scrum

Type: Contract
Job #3870

Infrastructure Engineer – Level 5 (Senior Platform Engineer)
Richardson, TX
TS/SCI

Cornerstone Defense is seeking a Principal Platform Engineer with well-rounded Linux Infrastructure Engineering expertise to join an agile product team. The Ideal candidate will have experience in both traditional infrastructure design; provisioning of platform, storage, and networking resources for existing on-premise infrastructure that ideally also has experience in emerging DevOps/DevSecOps & Modernized technologies. The Senior Platform Engineer would be engaged in the design and implementation of the system updates and upgrades with Focus on the Linux Server / Linux OS expertise and will support Technical Exchange Meetings (TEMs) and provide project status as required.

The Senior Platform Engineer would be involved with development, implementation of traditional compute/network/storage systems and related deployments, as well as support improving the program platform’s over-arching design through new emerging technologies. This includes existing operating systems and existing server hardware designs, as well as supporting the design and development of new modernized system architectures through Automation tools.

Responsibilities:

You will leverage company and industry best practices and capabilities to develop and communicate implementation, of infrastructure solutions.
You will maintain existing systems through Linux Based Tools and manage the COTS stack on the system to support program needs.
You will Utilize various scripting and Automation tools to develop and maintain the program’s infrastructure.
You will ensure that the COTS stack and versioning is consistent across the platform; and will work with the team to make updates as necessary.

Qualifications:

Typically requires BS/BA Degree in Science, Technology Engineering Math (STEM) in Computer Science, Computer Engineering, Information Technology or Physics and 8 years of related work experience
Current TS/SCI issued security clearance is required day 1. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Hands on Experience with Linux Operating System
Scripting skills: Bash, Python, Java, Perl, Ruby, Tcl/Tk
Experience with markup languages: YML, XML, JSON
Experience with automation tools: Ansible, Terraform, Jenkins, Bitbucket
Proficient with MS Office suite: Word, Excel, PowerPoint, Visio

Desired Skills:

Familiar with container orchestration: Kubernetes, Docker, Podman, Helm, Rancher
Familiar with Lightweight Directory Access Protocol (LDAP)
Familiar with Information Technology Service Management tools: ServiceNow, Atlassian (Jira, Confluence)
Familiar with Agile project management, Scrum methodology
A Background in Systems Operations or Engineering; supporting large complex Information Technology environment.
A Current Poly Is strongly desired for this role in order to get Privilege User access to systems.

Location: Chantilly, Virginia
Type: Contract
Job #3869

Title: Systems Engineer
Location: Chantilly, 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.

The office independently operates a hybrid-cloud mission infrastructure hosting applications and a large data lake, requiring them to manage all infrastructure components and enterprise services like Active Directory. The office requires support specializing in systems engineering and IT project management to guide systems through security accreditation and create essential documentation, including System Security Plans and SOPs. System Engineers will decompose customer requirements into technical solutions, considering architectural impacts, performance, and life cycle costs, while also assisting with project estimation, scheduling, and cost of cloud solutions. The team is responsible for managing the storage, security, and maintenance of data, including patching, upgrades, and monitoring the physical infrastructure.

Demonstrated experience using forensic software such as Cellebrite, XRY, WinHex, FTK, and Autopsy.
Demonstrated experience utilizing bash scripting, and bash command lines using Ubuntu and RedHat.
Demonstrated experience using Storage system installation design and architecture in multi-petabyte environments.
Demonstrated experience using various instances of Windows – troubleshooting, patching, updates, managing active directing, supporting users and supporting security posture.
Demonstrated experience installing, maintaining, and configuring Aspera Enterprise Server and Aspera P2P.
Demonstrated experience maintaining, configuring, administering Mongo Databases.
Demonstrated experience analyzing existing systems and identifying necessary corrective actions and improvements.
Demonstrated hands on experience performing server installation, rack or capacity planning, facility and space management, equipment commissioning and decommissioning.
Demonstrated ability to create and maintain SOP documentation used by technical and non-technical personnel.
Demonstrated ability to teach digital forensics to large audiences of diverse backgrounds.
Demonstrated experience creating, maintaining and sharing curated work data.
Demonstrated experience providing aftercare support, such as integration support for previously installed software and programs.
Demonstrated experience performing tier 1 thru tier 3 support, including both systems troubleshooting and incident tracking and management.
Demonstrated hands on experience serving as an Engineering Lead, coordinating, scheduling, deconflicting, and resolving conflicts between IT engineering projects.
Demonstrated experience using Sponsor’s digital forensic triage application.

Location: Annapolis Junction, Maryland
Type: Contract
Job #3868

Title: Virtualization-Savvy CNO Developer
Location: Annapolis Junction, MD
Compensation Range: $180 -$200K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Overview:
We are seeking a highly motivated and technically skilled CNO Developer to join our Virtualization Team supporting mission-critical cyber operations. The ideal candidate will have a strong foundation in low-level systems programming, embedded development, and Windows internals, with a passion for solving complex technical challenges in secure and virtualized environments.

Core Tasks:

Develop and maintain low-level software in C, targeting Windows platforms and embedded systems.
Apply deep understanding of Windows internals to support the development of stealthy and resilient capabilities.
Implement and optimize memory management techniques for performance and stability in constrained environments.
Analyze and implement network protocols, including secure communication layers such as SSL/TLS.
Perform reverse engineering and debugging of binaries to identify issues, understand behavior, and enhance functionality.
Collaborate with team members to integrate capabilities into virtualized environments and support mission deployment.
Participate in code reviews, documentation, and technical discussions to ensure high-quality deliverables.

Desired Skills:

Experience with Python for scripting, automation, or rapid prototyping.
Familiarity with virtualization technologies (e.g., VMware, Hyper-V, KVM).
Exposure to malware analysis, exploit development, or CNO toolchains.

Qualifications:

Minimum 3 years of experience in CNO-related work.
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

Location: Reston, Virginia
Type: Contract
Job #3865

Title: Business Process Analyst
Location: Chantilly, Virginia
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Company Overview:

Cornerstone Defense, in partnership with our military, intelligence, and civil government customers, supports U.S. operations worldwide through the use of many different types of intelligence, satellite, and cyber technologies. Cornerstone’s Intelligence Sector provides solutions to the United States Government for information collection, operations, exploitation and dissemination, and research activities. Our Team specializes in software development, cloud architecture, systems and network engineering, systems integration, agile management, as well as targeting operations and intelligence analysis. Our support to our mission customers includes cyber network operations, exploitation and defense, signals intelligence, human intelligence, and critical missions and networks.

Business Process Analyst
FSP is a requirement
——

Seeking a Business Process Analyst responsible for creating, documenting, maintaining, developing, and enhancing client-specific business processes and rules databases, also known as the Knowledgebase (KB). This position provides documentation, analysis, and configuration services to reflect updates for regulatory and acquisition policy, customer-specific business processes, and other enhancements to Clent’s solutions.

As a member of an integrated team, the Business Process Analyst also participates in the operation of Client’s Level 1 Help Desk. Overall, this position is responsible for proactively and collaboratively working with project managers, teams, and other organizational groups in a tactical capacity, evaluating internal and external client requirements, and implementing practical solutions promptly.

Job Duties:

Develop and maintain a fundamental understanding of Federal Acquisition Regulation (FAR), policies, and practices. Maintain currency with FAR policies and practices by attending continuing education courses, participating in research assignments, and self-initiated exploration of related publications
Develop the skills required to maintain, enhance, and test client agency KBs by gaining a complete understanding of team procedures and toolsets, and through the successful completion of staff training exercises and individual KB assignments (tasks)
Perform Knowledgebase configurations, logic, implementation, and business process verification/testing
Analyze Regulatory changes and determine their impact on client products
Analyze business and user needs, document user requirements, and translate into accurate specifications
Achieve proficiency in all major client products, including the AAMS software suite, through internal staffing training, self-guided tutorials, and daily exposure to individual product feature sets
Obtain competency in Level I customer support functions and internal helpdesk procedures through call monitoring and participate in helpdesk activities/functions
All other duties as assigned

Required Skills:

2+ years prior work experience
Ability to work in a team-oriented environment for a matrixed organization
Functional knowledge of productivity tools such as Microsoft Office (Word, Excel, Outlook)
Excellent verbal and written communication skills
Ability to collaborate with internal and external customers
Demonstrated analytical capabilities

Desired Skills:

Knowledge of the Federal Acquisition lifecycle or commercial contracting
Knowledge of Federal financial systems or commercial accounting
Experience with Federal government contracting and/or program office organizations
Experience with logic structures

Location: Annapolis Junction, Maryland
Type: Contract
Job #3864

Title: Software Integration Engineer 4 (HPC)
Location: Annapolis Junction, MD
Compensation Range: $225 -$245K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Qualifications:
Bachelor’s Degree in Computer Science or related field and have at least ten (10) 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 ten (10) years of demonstrable experience. OR
An industry recognized professional certification, as defined in the TT0s, may substitute as one (1) year experience. OR
A Master’s Degree in Computer Science or related field may substitute for two (2) years’ experience.

Position Description:
The Software Integration Engineer shall be responsible for executing and maintaining automated integration and system testing processes across a diverse range of HPC operating environments. This role involves the development of scripts and playbooks to be leveraged for system-level integration, development of technical documentation, coordination of integration activities, and clear communication of results to key stakeholders. In addition, the Software Integration Engineer shall conduct performance, functional, redundancy, and failover testing to ensure system stability and reliability under various conditions.

Requirements:

Experience with the Linux CLI, and Linux tools
Recent experience using Bash/Python to develop scripts to automate testing of HPC systems
Recent Linux administration experience in an HPC multi-host/multi-instance environment
Experience troubleshooting hardware and software issues operating in an HPC environment
Experience with tracking and reporting issues to key stakeholders
Experience configuring and sustaining VMware ESXi/Virtualization environments
Experience with containerization technologies such as Docker
Experience with IaC principles and automation tools including Ansible
Familiar with metrics and monitoring tools used for ingesting, indexing, searching, monitoring, and analyzing data
Demonstrated experience with network monitoring tools, including the ability to configure, analyze, and troubleshoot network performance in HPC systems
Experience with CI/CD principles, methodologies, and tools including GitLab CI
Experience with Git Source Control System

Position Desired Skills:

Experience with the Atlassian Tool Suite (JIRA, Confluence)
Familiar with Agile software development principles, methodologies, and best practices

Type: Contract
Job #3862

Infrastructure Engineer
Aurora, CO
TS/SCI w/ Poly
Compensation Range: $130,000 – $150,000
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.

Responsibilities:

Support transitioning a system that is tightly coupled to the underlying infrastructure.
Assist with architecture, design, development, integration, and support of build, integration & test, and deployment pipelines, optimizing for performance and scalability across cloudbased computing environments.
Leverage company and industry best practices and capabilities to improve scalability, consistency, infrastructure efficiency, reduce deployment time, and automate configuration management.
Collaborate with software engineers, data scientists, and other agile development teams to design and implement robust platform solutions.
Integrate security and compliance into the platform with services such as encryption and access management.
Provide operational support for the platform

Basic Qualifications:

Typically requires BS/BA Degree in Science, Technology Engineering Math (STEM) in Computer Science, Computer Engineering, Information Technology or Physics and 5 years of related work experience
Experience designing, implementing, and integrating Cloud based systems on infrastructure platforms such as AWS.
Experience with automation frameworks such as Terraform, Ansible, and Chef
Experience with programming/scripting languages (E.g. Python, Java, Ruby, Bash, C++, C#, Go)
Must meet DoD 8570 IAT level II requirements (Security + CE or equivalent)
Active and current U.S. government TS/SCI with CI Poly security clearance is required day 1. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Preferred Qualifications

Experience deploying, configuring, and supporting CICD Pipelines tools (E.g. Jira, Confluence, Bit Bucket, Jenkins, Artifactory, Gitlab)
Experience with RedHat Linux Experience developing, testing & delivering applications w/in a DevSecOps framework
Experience with automation frameworks such as Terraform, Ansible, and Chef
Experience with scanning tools (E.g. Nessus, Fortify, Anchore)
Infrastructure experience with computers, networks, storage, and virtualization
Experience with cloud platforms such as AWS or Google cloud
Experience developing, testing & delivering applications w/in a DevSecOps framework
Experience with troubleshooting applications & infrastructure services on Linux based Operating Systems Background in COTS/FOSS product installation, configuration, and integration

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.

Location: Annapolis Junction, Maryland
Type: Contract
Job #3861

Title: Software Engineer 4 (Hybrid)
Location: Annapolis Junction, MD
Compensation Range: $210 -$230K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Position Description:
The Software Engineer shall be responsible for developing and maintaining a system that manages access to HPC resources in a large multi-tenant containerized Kubernetes Linux environment.
Qualifications:
Master's degree in Computer Science or related discipline from an accredited college or university, plus ten (10) 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 twelve (12) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity
OR
Fourteen (14) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.
Requirements:

Experience using the Linux CLI
Experience developing and maintaining scripts using Bash/Python
Experience installing, configuring, and supporting COTS/GOTS/FOSS software, libraries, and packages in a Linux environment
Recent software development experience using Python
Experience designing and developing REST interfaces using FastAPI
Experience with containerization technologies such as Docker, PodMan, and containerd
Experience with container orchestration technologies including Kubernetes
Experience administering Kubernetes clusters in an AWS environment
Experience with IaC (Infrastructure as Code) concepts, principles and automation tools including Ansible and Terraform
Demonstrated experience using system monitoring tools such as Grafana/Prometheus
Experience with CI/CD principles, methodologies, and tools including GitLab
Experience using Git Version Control System

Position Desired Skills:

Experience with the Atlassian Tool Suite (JIRA, Confluence)
Familiarity with web technologies including JavaScript, HTML, CSS, and React
Familiar with HPC workload management systems including Slurm
Experience with ArgoCD, AirFlow, SQL, and JupyterLab
Familiar with stream/batch Big Data processing and analytic frameworks including Spark
Experience with Identity and Access Management (IAM) solutions including Keycloak

Location: Chantilly
Type: Contract
Job #3859

Software Developer – Workflow Automation

Chantilly, VA

Mission: We are looking for a Software Developer who thrives at the intersection of process and code. In this role, you won’t just be “fixing tickets”—you’ll be architecting the digital workflows that keep our mission moving. You will work within a high-velocity team to transform complex functional requirements into elegant, automated business logic.

Required Technical Background:

Languages: JavaScript (Essential), HTML5, CSS3, XML
Primary Platform: ServiceNow (Experience in Appian, Jira Service Management, or Power Automate is highly transferable)
Integration: REST/SOAP APIs,
Frameworks: ITIL Framework

What You’ll Do:

Build & Automate: Develop and maintain end-to-end workflows, custom forms, business logic, and UI policies that streamline enterprise operations.
Collaborate: Work under the guidance of a Technical Team Lead to hit roadmap milestones, while partnering with Functional Analysts to turn “vague ideas” into “unit-tested reality.”
Integrate: Design and implement APIs to ensure our automation platform plays nicely with the rest of the enterprise ecosystem.
Refine: Participate in peer reviews, conduct unit testing, and lead demos to showcase new features to stakeholders.

Required Qualifications:

JavaScript (Angular) Mastery: Strong experience scripting within a workflow automation environment (ServiceNow is preferred, but we value expertise in similar low-code/pro-code platforms).

Type: Contract
Job #3851

Senior Data Engineer
Tysons Corner, VA
Active TS/SCI with Poly

Job Responsibilities:

Work with AI team members to operationalize data pipelines and ML tasks.
Provide day-to-day support of deploying Python-native ML pipelines and perform data engineering tasks to enable AI/ML capabilities.
Present results to a diverse audience in presentation or report form.
Support architectural leadership, technical support, and advisement services to ensure identity management system technologies are integrated and meeting the appropriate security requirements.
Support leadership who engage with senior level executives at a public facing Federal agency and provide subject matter expertise in security architecture and other key domain areas.

Required Skills:

Minimum 10 years experience
Bachelor's Degree in Computer Science, Information Technology Management or Engineering, or other comparable degree or experience
8+ years of experience in Data/ML engineering
Expert Experience with ETL, data labeling, and data preparation
8+ years experience with at least 2 of the following technologies: Cloudera, DataBricks, Snowflake, NiFi, Python, SQL, Kafka
Expert experience designing, developing, and deploying data solutions in classified AWS cloud environments up to IL6+
Expert experience designing, implementing, and maintaining data architecture and services to be used for AI/ML. Additionally, operationalizing and maintaining AI/ML models in production.
Strong communication skills, ability to communicate technical concepts in both layman and technical terms to technical and non-technical stakeholders
Ability to perform data analytics on program related or system related activities. -This will include assessing performance and manual processes implementing methods/algorithms to automate/optimize

Type: Contract
Job #3847

Data Engineer
Tysons Corner, VA
Active TS/SCI with Polygraph

Job Responsibilities:

As a Sr. Data Engineer, you’ll work with team members to build, deploy, and operate data pipelines and data engineering components to enable data brokering and exchange capabilities across a diverse range of producers and consumers. In this role, you will be responsible for building robust, scalable data pipelines while working collaboratively with cross-functional teams to ensure seamless integration, optimized performance, and efficient delivery of solutions.

Work with team members to operationalize data pipelines and supporting cloud infrastructure
Collaborate with external data producers and consumers to obtain and provide data through interfaces such as REST APIs and S3
Provide day-to-day support of deploying Python-native data pipelines and performing data engineering tasks to enable data brokering and exchange capabilities
Provide Tier 2/3 troubleshooting and incident resolution support for data pipelines in Production

Required Skills:

4+ years of proven experience in data engineering, with expertise in designing, developing, and maintaining data ingestion, transformation, and loading pipelines and components
Demonstrated experience in designing and deploying data pipelines leveraging AWS cloud infrastructure across multiple classification domains (e.g., IL5 to IL6+)
Experience with Infrastructure-as-Code (IaC) tools, including Terraform, CloudFormation, or Ansible, to automate deployment of data pipeline cloud infrastructure
Understanding of RMF security principles and hands-on experience implementing security controls for data pipelines in cloud environments
Strong scripting and programming skills in languages such as Go, Python, and Bash
Experience with data pipeline tools and technologies such as Nifi, Hadoop, HDFS, and Kafka. Experience implementing data pipelines in the Cloudera Data Platform environment is highly preferred.
Strong communication skills, with the ability to clearly convey complex technical concepts

Location: Chantilly, Virginia
Type: Contract
Job #3846

Tech CI Analyst
Chantilly, VA

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Company Overview:

Tech CI Analyst
Level: Senior / Expert
Location: Chantilly / Dulles
Required:
Bachelor's Degree in a technically relevant field (4 years of additional relevant if not)
Active TS/SCI with poly
11 years providing technical all source intelligence and generating leads
5 years working with SIGINT and Cyber Ops
Strong knowledge and understanding of telecommunications
Demonstrated ability to write and dissem products

Type: Contract
Job #3844

Job Title: Web Developer
Location: Salt Lake City, UT
Duration: 6 months
Salary: $140K – $160K
Work Schedule: 9/80 work shift
Experience Level: Mid to Senior

Position Overview:
We are seeking a skilled Web Developer for a 6-month subcontract position based in Salt Lake City. This role involves developing complex, web-based forms that interact with Relational Database Management Systems (RDBMS). The ideal candidate will have mid to senior-level experience and be comfortable working in a fast-paced, collaborative environment.

Key Responsibilities:

Design and develop dynamic web forms using HTML, CSS, and JavaScript
Implement interactive features and client-side validation
Build and maintain server-side applications using Python, PHP, Java, Ruby, or Node.js
Utilize frameworks such as Django, Laravel, Spring, or Express
Design and manage database schemas; perform operations using SQL with MySQL, PostgreSQL, Oracle, SQL Server, or SQLite
Integrate web forms with backend services and databases for data processing and retrieval
Use ORM tools like SQLAlchemy, Hibernate, or Sequelize
Develop and manage RESTful or GraphQL APIs
Ensure data security through proper authentication, authorization, and secure coding practices
Provide user feedback and updates based on form submissions and database interactions

Additional Responsibilities:

Build complex web-based forms using Blazor, Visual Studio, and .NET
Develop applications using Microsoft Power Apps
Work with MS SQL Server Integration
(Nice-to-have) Interface with Microsoft Dynamics (CRM)

Qualifications:

Proficiency in front-end technologies: HTML, CSS, JavaScript, and frameworks like React, Angular, or Vue.js
Strong understanding of back-end development with Node.js, Python, PHP, Java, or Ruby
Experience with web frameworks such as Django, Laravel, Spring, or Express
Solid SQL skills and experience with major RDBMS platforms
Familiarity with ORM tools like SQLAlchemy, Hibernate, or Sequelize
Experience designing and implementing RESTful or GraphQL APIs
Ability to design and manage complex database schemas
Knowledge of secure coding practices and web security
Strong problem-solving skills and attention to detail
Excellent communication and collaboration abilities

Key Skills:

Blazor / Visual Studio / .NET
Microsoft Power Apps
MS SQL Server Integration

Preferred Qualifications:

Experience interfacing with Microsoft Dynamics (CRM)
Full-stack development experience
Familiarity with Git or other version control systems
Understanding of DevOps practices and CI/CD tools
Experience building scalable, high-performance web applications

Location: Chantilly, Virginia
Type: Contract
Job #3837

Software Engineer – Backend Solutions
JOB DESCRIPTION
We’re looking for a Software Engineer who is passionate about building modern, scalable solutions for ingesting and transforming data. This role blends back-end engineering with data pipeline development and is perfect for someone who enjoys designing modular services and bringing structure to complex data environments.

As part of our Agile team, you’ll design and develop software products and services that efficiently ingest, process, and manage data from a variety of sources. You’ll play a key role in building robust, reusable APIs and data pipelines that support critical operational and analytical systems.

KEY RESPONSIBILITIES

Design and develop scalable backend services and data ingestion solutions.
Perform data modeling, data mapping, and large-scale file manipulation.
Collaborate across disciplines in an Agile environment with minimal supervision.
Drive innovation and process improvement with a hands-on development approach.
Optimize application for maximum speed and scalability.

QUALIFICATIONS

Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.

REQUIRED KNOWLEDGE/SKILLS

Knowledge of NodeJS or Python
Strong understanding of APIs, microservices, and distributed systems.
Solid experience in building and maintaining ETL workflows and data pipelines.
Excellent organizational, coordination, interpersonal and team building skills.
Familiarization with NoSQL datastores.

DESIRED KNOWLEDGE/SKILLS

NiFi experience
Hands-on experience working with Elastic and RabbitMQ
NoSQL experience (i.e. MongoDB)
Distributed architecture creation
Cloud based architecture creation or experience

Location: Reston, Virginia
Type: Contract
Job #3836

Help Desk Specialist – Lead
Springfield, VA
Active TS/SCI with CI Polygraph

Job Requirements:

Serve as the first point of contact for customers seeking technical assistance over a ticketing system.
Perform remote troubleshooting through diagnostic techniques and pertinent questions.
Determine the best solution based on the issue and details provided by customers.
Walk the customer through the problem-solving process.
Direct unresolved issues to the next level of support personnel.
Provide accurate information on IT products.
Record events and problems and their resolution in logs.
Follow-up and update customer status and information.
Pass on any feedback or suggestions by customers to the appropriate internal team.
Identify and suggest possible improvements on procedures.
Performs other related duties as assigned.

Required Experience:

Proven experience in Supporting COTS products in a customer support role.
Good understanding of computer systems, and other tech products.
Ability to diagnose and resolve basic technical issues.
Excellent communication skills.
Customer-oriented and cool-tempered.
Understanding of Ticketing systems.
Active Security+ certification.

Desired Experience:

Knowledge of the Federal Acquisition lifecycle or commercial contracting.
Knowledge of Federal financial systems or commercial accounting.
Experience with Federal government contracting and/or program office organizations.

Location: Reston, Virginia
Type: Contract
Job #3835

Windows Systems Engineer
Springfield, VA
Active TS/SCI with CI Polygraph

The Junior Windows Systems Engineer supports the configuration, deployment, and maintenance of Windows-based systems within a secure, mission-critical environment. This role works closely with the DevOps team and senior engineers to assist in system installation, patching, and performance monitoring across classified networks. Responsibilities include managing day-to-day Windows operations, monitoring system performance, and identifying potential issues to maintain consistent uptime and efficiency. The engineer will respond to user incidents, provide Tier II-level troubleshooting, and document resolutions to ensure repeatable and efficient processes.

Additional duties include maintaining accurate records of system performance metrics, assisting with Active Directory and Group Policy management, and supporting cloud-integrated environments such as AWS. The role also contributes to developing user training materials and onboarding documentation for new personnel.

Required Experience:

Experience supporting Microsoft Windows Server and workstation environments, including patching, imaging, and configuration management.
Familiarity with Active Directory, Group Policy, and basic PowerShell scripting.
Experience supporting AWS or hybrid Windows-to-cloud deployments.
Understanding of IT best practices in high-availability, security-sensitive environments.
Strong troubleshooting, documentation, and communication skills with the ability to explain technical issues clearly.
Proven ability to work collaboratively in a team-oriented, matrixed environment.
Active Security+ certification.

Desired Experience:

Bachelor’s degree in Computer Science, Information Systems, or related field.
Familiarity with federal IT environments, acquisition processes, or government contracting operations.
Exposure to DoD or Intelligence Community systems and related compliance standards (e.g., DISA STIGs).

Location: Reston, Virginia
Type: Contract
Job #3834

Senior Business Analyst
Springfield, VA
Active TS/SCI with CI Polygraph

Cornerstone is seeking a Business Intelligence Analyst responsible for working closely with Customer Engagement project teams to provide the customer with business analysis expertise, report creation and dashboard design, in a tactical capacity, evaluating internal and external client requirements and implementing effective solutions in a timely manner.

The selected candidate will gather, analyze, and document functional/reporting requirements
(i.e., user stories using interviews, documentation analysis, site visits, use cases, scenarios) and
design, assemble and deliver reports and dashboards in a manner consistent with client expectations.

Job Requirements:

Ability to consolidate, interpret and present data in reports/dashboards for Executive, Team Leads and Individual End Users focused on Acquisition and Financial Information.
Ability to produce reports and dashboard using Microsoft Power BI, SSRS and other data tools.
Ability to define and document customer business processes and report/dashboard content needs including business process diagrams, data maps, and data modeling.
Ability to consult with project team members and customer stakeholders to identify, define, and document business needs and objectives, current reporting capabilities, and challenges related to the business functions such as those supporting the Federal Acquisition Lifecycle.
Collaborate with the project manager, technical analysts, and customer end-users in the analysis, design, configuration, testing and maintenance of the Business Intelligence module of Business Process Management Platform to ensure desired operational performance and capabilities.
Track and document changes for functional and business specifications; write detailed universally understood procedures for testing uses cases, knowledge capture and training purposes.
Achieve proficiency in all major Reporting/Analytic products, including the software suite: through internal staffing training, self-guided tutorials, and daily exposure to individual product feature sets.
Innovative Solutions to Support Complex Business Processes.
Provide support for a variety of meetings, demonstrations, and program activities related to Business Intelligence.
Test reports/dashboard projects in accordance with business and functional design following best practices for quality assurance.
Record and track defects uncovered during test execution and assist in defect resolution (troubleshooting and researching).
Comprehension of change management processes.

Required Experience:

5+ years prior business analyst experience.
Ability to work in a team-oriented environment for a matrixed organization.
Strong knowledge and experience with data reporting tools including Microsoft PowerBI, SSRS, Tableau, etc.
Strong knowledge of productivity tools such as Microsoft Office (Word, Excel, Outlook).
Experience with Agile and SCRUM processes and methodologies.
Familiarity with Government Processes, including Federal Acquisition & Finance
Knowledge of software development life cycle (SDLC) practices, principles, and
techniques as they apply to Agile development process.
Excellent verbal and written communication skills, with proven ability to listen and relate with the customer.
Ability to effectively collaborate with internal and external customers.
Demonstrated analytical and problem-solving capabilities.
Proven ability to communicate technical details to a non-technical audience.
Excellent organizational and time management skills.
Strong team player that is willing to help other team members at all times.

Desired Experience:

Knowledge of SQL Databases and Query Creation
Knowledge of the Federal Acquisition Lifecycle or commercial contracting.
Knowledge of Federal financial systems or commercial accounting.
Ability to develop training materials and conduct end-user training sessions.
Experience with Federal government contracting and/or program office organizations business processes.

Location: Reston, Virginia
Type: Contract
Job #3833

Interface Developer
Springfield, VA
Active TS/SCI with CI Polygraph

Cornerstone is seeking highly motivated Developers to build and implement functional software solutions, that thrives in a fast-paced, agile environment including the ability to engage in open and animated peer review sessions, able to change direction quickly, and an eagerness to learn new technologies.

The ideal team member is a self-starter with effective problem-solving skills, excellent written and verbal communication, and a curiosity for new challenges and experiences. Additionally, candidates will ideally have experience that highlights their critical thinking skills, lifelong learning habits, and effective presentation skills to help team members and clients understand issues, opportunities, and proposed solutions. The selected candidate will build and implement functional software solutions in a fast-paced, agile environment and have the ability to engage in open and animated peer review sessions, change direction quickly, and an eagerness to learn new technologies.

Job Requirements:

Collaborate with software architects and developers.
Collaborate with the project managers, analysts, and customers in the analysis, design, creation, and maintenance of integration solutions.
Produce code to develop easy maintenance and extension of software products.
Integrate software components and third-party programs.
Understand and demonstrate development skills utilizing ASP.NET, .NET Core, .NET Framework, C#, and JavaScript/JQuery.
Troubleshoot, debug, and upgrade existing software.
Perform validation and verification testing prior to deploying implementations.
Recommend and execute improvements.
Create technical documentation for reference and reporting.

Required Experience:

5+ years of experience with software development, infrastructure development, or related field.
Working understanding of SQL, SSL Certificates, and Single Sign on Configurations.
Understanding of the asp.net application lifecycle from IIS to the DOM.
Create and consume REST and SOAP web services.
Experience with Windows environment and Visual Studio.
Experience with .NET, SaaS.
Experience with Scrum/Agile methodologies.
Good verbal and written communication skills.
Able to multitask and manage time efficiently.
Ability to work independently and in a team.

Location: Reston, Virginia
Type: Contract
Job #3832

Technical Trainer/Instructional Designer
Springfield, VA
Active TS/SCI with CI Polygraph

The Technical Trainer / Instructional Designer will support the Customer Engagement and Implementation Teams in developing and delivering comprehensive technical training solutions for customer environments. This role is responsible for designing, preparing, and conducting technical training programs to support COTS and enterprise-level system deployments, ensuring end users can effectively operate and maintain deployed solutions. The candidate will work closely with program stakeholders, product SMEs, and end users to create tailored instructional materials, deliver training across multiple modalities, and continuously improve the training program to meet evolving mission needs.

Responsibilities:

Develop and deliver technical training programs for specific customer solution implementations, ensuring alignment with mission and system requirements.
Design and update instructional content including course outlines, lesson plans, instructional materials, lab exercises, and job aids.
Conduct instructor-led and virtual training sessions via webinars, one-on-one instruction, and video/web-based platforms.
Develop, maintain, and manage a library of training resources and records of user skill levels and training completion.
Evaluate training effectiveness and adjust content and delivery based on user feedback and performance metrics.
Collaborate closely with technical and program teams to ensure training content reflects current system capabilities and configurations.
Serve as a Subject Matter Expert (SME) for the product suite and other mission-related COTS systems, ensuring technical accuracy and relevance of materials.
Manage training delivery in accordance with customer business objectives, maintaining flexibility for evolving mission demands.

Required Skills:

5–7+ years of experience in technical training, instructional design, or related disciplines.
Demonstrated ability to develop, document, and deliver end-user technical training in dynamic, classified environments.
Strong proficiency in Microsoft Office Suite and familiarity with Adobe Captivate or similar e-learning tools.
Excellent verbal and written communication skills, with the ability to explain technical concepts to non-technical users.
Proven collaboration skills in team-oriented, matrixed organizations.
Strong analytical, organizational, and problem-solving skills, with the ability to manage multiple priorities effectively.
Active Security+ certification.

Location: Colorado Springs, Colorado
Type: Contract
Job #3830

Senior System Administrator

Colorado Springs, CO

Active TS/SCI

$135,000 – $160,000 base salary

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:

Support a mixed Windows/Linux environment on VMware vSphere and OpenStack.

Handle patching, monitoring, incidents, and change control with solid documentation.

Work well with the security team on hardening and remediation.

Comfortable with segmented networks/least-privilege designs and multi-site operations.

10+ years of experience across a broad range of Windows/Linux/Virtualization technologies in professional roles

Required Skills:

Active Directory user/group management, understanding of Group Policy

Managing DHCP and DNS on either Windows or Linux

STIG hardening concepts for servers, desktops, and network devices

Management of system updates/patches for Windows and/or Linux

Hands-on experience with virtualization; Linux KVM/OpenStack and/or vSphere

Experience with troubleshooting complex technical issues across multiple layers

Understanding of networking; including TCP/IP, VLANs, VPNs, firewall policies, basic routing

Desired Skills:

Experience managing OpenStack; including overcloud and undercloud updates and tenant management

SAN/NAS operations/concepts; iSCSI, NFS, SMB, snapshots, replication

Container creation/maintenance; utilizing Docker and/or Podman

Kubernetes operations; ability to troubleshoot issues in a cluster

Scripting and automation experience with Ansible, Bash, PowerShell, and/or Python

Familiarity with Cisco/Juniper CLIs and configurations

Experience managing Microsoft Exchange

Experience managing Microsoft Endpoint Configuration Manager

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.

Location: Colorado Springs, Colorado
Type: Contract
Job #3829

Software and Systems Security Engineer
Colorado Springs, CO
TS/SCI
$150,000 – $180,000 base salary

Job Responsibilities:

Design, build, and maintain technology solutions and systems that provide security for on-prem systems, networks, and data. This can include:
- Authentication and identity services, including multi-factor solutions, network access control identity servers, and related authentication and authorization technologies.
- Network security systems and the backend infrastructure that powers such services.
- Application level security controls (e.g. web application firewalls)
- Enabling and enforcing Secure Coding pattern implementation, verification, and validation
- Cloud deployments security policy enforcement, centralized configuration management, monitoring, etc.
- Work collaboratively with Cybersecurity and IT teams to identify threats and problem areas, using that feedback to further strengthen tools and technologies.
- Create solutions that are scalable, repeatable, maintainable, and secure.
Assisting with Kubernetes deployments, troubleshooting, and improving security posture using Gitlab pipelines and ArgoCD GitOps patterns

Required Skills:

Development experience creating and deploying secure services in any modern programming language (including but not limited to Python, Rust, Go)
Strong familiarity with software development lifecycle (SDLC) processes and source control technologies
Familiarity with cloud security services, concepts, and best practices
Experience developing security architectures

Desired Skills:

Automating processes between tools and systems (using tools such as Ansible, Powershell, et al)
Familiarity with enterprise security controls and security best practices for Linux systems

Type: Contract
Job #3821

Title: Software Engineer
Location: Annapolis Junction, MD
Compensation Range: $165 -$185K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Summary:
InfiniteShadow requires a Software Engineer to perform foundational research, development, and prototyping that will exemplify real-world capabilities from the emerging applied cyber concepts research. The contractor shall create hardware and software component design specifications and use appropriate industry standard development methodologies and tools to implement those specifications. In addition to functionality features, the following shall be included in the designs: interfaces, security, performance, controls, databases, AI/ML, and user experience. The contractor shall test and document results in accordance with the Government approved test plan.

Qualifications:
Seven (7) years experience as a SWE, in programs and contracts of similar scope, type, and complexity is required. 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.

Required Skills:

MySQL
JavaScript
Understanding of other dependency tools: Node.js, npm, Express, and multer
Rejit (Rejx – command-line interface Python library)

Desired Skills:

LLMs
Retrieval-Augmented Generation
CASPORT

Location: Annapolis Junction, Maryland
Type: Contract
Job #3820

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

Summary:
The Software Engineer shall be responsible for the development, enhancement, and sustainment of automation tools in support of system management infrastructure software and services for High Performance Computing (HPC) systems in a Linux environment.

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
Experience using Linux tools and developing Bash scripts to automate manual processes
Recent software development experience using Python
Experience with automation frameworks including Ansible for orchestrating deployment
Experience with automated testing frameworks and methodologies such as TDD, BDD
Experience with CI/CD principles, methodologies, and tools such as GitLab CI and Jenkins
Experience with Git Source Control System

Desired Skills:

Experience with the Atlassian Tool Suite (JIRA, Confluence)
Familiar with Agile, Scrum, or Scaled Agile Framework (SAFe) methodologies

Location: Annapolis Junction, Maryland
Type: Contract
Job #3819

Title: Software Engineer 2 (Metrics & Monitoring)
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 DevOps Software Engineer shall be part of a team responsible for designing, developing and maintaining a comprehensive distributed Metrics and Monitoring solution for HPC systems to ensure the reliability, performance, and scalability of HPC infrastructure.

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 the Atlassian Tool Suite (JIRA, Confluence)
Experience with Elasticsearch

Location: Annapolis Junction, Maryland
Type: Contract
Job #3817

Title: Software Engineer 2 (Permissions Management)
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 implementing access controls and permission mechanisms for securing access to critical HPC system resources through robust permission management, ensuring compliance with the Agency’s security policies and industry standards.

Position Required Skills

Experience using the Linux CLI
Proficiency in scripting (Bash/Python) to automate tasks and processes
Basic Linux systems administration including User and Group Management
Experience implementing Access Controls and permissions including RBAC and HBAC in a Linux environment
Experience developing software solutions using the Python programming languages
Experience developing Ansible playbooks to orchestrate the automation of provisioning HPC hardware and software components
Experience with CI/CD principles, methodologies, and tools such as GitLab CI and Jenkins
Experience with Git Source Control System

Position Desired Skills

Experience with containerization technologies such as Docker, PodMan, containerd
Familiar with IAM solutions such as KeyCloak, FreeIPA, SSSD, LDAP, Kerberos
Experience with the Atlassian Tool Suite (JIRA, Confluence)
Familiar with Agile, Scrum, or Scaled Agile Framework (SAFe) methodologies

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

Position Required Skills

Experience using the Linux CLI
Proficiency in scripting (Bash/Python) to automate tasks and processes
Basic Linux systems administration including User and Group Management
Experience implementing Access Controls and permissions including RBAC and HBAC in a Linux environment
Experience developing software solutions using the Python programming languages
Experience developing Ansible playbooks to orchestrate the automation of provisioning HPC hardware and software components
Experience with CI/CD principles, methodologies, and tools such as GitLab CI and Jenkins
Experience with Git Source Control System

Position Desired Skills

Experience with containerization technologies such as Docker, PodMan, containerd
Familiar with IAM solutions such as KeyCloak, FreeIPA, SSSD, LDAP, Kerberos
Experience with the Atlassian Tool Suite (JIRA, Confluence)
Familiar with Agile, Scrum, or Scaled Agile Framework (SAFe) methodologies

Type: Contract
Job #3814

DevSecOps Engineer III
Reston, VA
Active TS/SCI with Polygraph

Job Responsibilities:

As a Sr. DevSecOps Engineer III, you’ll play a critical role in designing, implementing, and maintaining secure and efficient software development and deployment pipelines.
You will collaborate with cross-functional teams to integrate security practices seamlessly into the development and operations lifecycle, ensuring the delivery of high-quality, secure, and reliable software solutions.
Collaborate with development, operations, and security teams to integrate security practices into the software development lifecycle.
Design, implement, and maintain CI/CD pipelines that incorporate automated security testing, vulnerability scanning, and compliance checks.
Develop and maintain infrastructure as code (IaC) templates and configurations, ensuring security best practices are applied to cloud resources and infrastructure components.
Perform regular security assessments, code reviews, and penetration testing to identify and address vulnerabilities and weaknesses in applications, code, and infrastructure.
Monitor and analyze system and application logs to detect and respond to security incidents.
Implement and manage identity and access management (IAM) solutions, ensuring appropriate authentication and authorization mechanisms are in place.
Collaborate with software engineers to provide guidance on secure coding practices and assist in remediation of security findings.
Participate in incident response activities, helping to investigate and mitigate security incidents in a timely manner.
Contribute to the development and maintenance of security policies, procedures, and documentation.

Required Skills:

At least 10 years of experience as a DevSecOps Engineer or similar role, with a focus on integrating security into the software development lifecycle.
Expert experience with DevOps practices, CI/CD pipelines, and automation tools (e.g., Jenkins, GitLab CI/CD, Artifactory, SonarQube, Selenium, Fortify, Acunetix, and Prisma Cloud).
Expert experience building DevSecOps solutions at scale across IL5 to IL6+ classification domains
Expert understanding of AWS and familiarity with other cloud platforms (e.g., Azure, GCP) and securing cloud-based applications and services.
Strong experience with infrastructure as code (IaC) tools such as Terraform, CloudFormation, or Ansible.
Strong experience in scripting languages (e.g., Python, Bash) for automation and tool integration.
Hands-on experience with security tools for static code analysis, dynamic application security testing (DAST), and vulnerability scanning, using tools such as Fortify, Acunetix, and Prisma Cloud
Knowledge of security best practices, common vulnerabilities, and exposure to security frameworks (e.g., OWASP, NIST).

No fields configured

Location: Annapolis Junction, Maryland
Type: Contract
Job #3813

Title: Software Engineer 3 (Data Management)
Location: Annapolis Junction, MD
Compensation Range: $190 -$210K
*Clearance: *Active TS/SCI w/ Polygraph needed to apply *

Summary:
The Software Engineer shall be responsible for the design, development, test, and sustainment of an end-to-end Big Data processing platform that provides downstream systems with aggregated analytic results and allows end-users the ability to query, visualize, and analyze event data from multiple data sources.

Required Skills:

Experience using the Linux CLI
Experience with Bash/Python scripting
Experience developing Java applications in a Linux environment
Experience developing with the Spring framework including Spring Boot
Experience with processing Big Data
Demonstrated experience with system design and architecture
Experience with Web development, HTTP, and REST services
Experience with NoSQL technologies such as Elasticsearch and Accumulo
Experience with CI/CD principles, concepts, best practices and tools such as Jenkins and GitLab CI

Desired Skills:

Experience with the Atlassian Tool suite (Jira, Confluence)
Experience with Git Version Control System
Experience with Test-driven development
Experience with containerization technologies such as Docker

Location: Sunnyvale, California
Type: Contract
Job #3812

Title: Network and Systems Engineer
Location: Sunnyvale, CA
Security Clearance: Secret Required
Salary: $120k – $150k
Work Schedule: Onsite | 9/80 work schedule | Department-wide team Fridays with social events
Contract Duration: 6+ months, with potential extensions tied to R&D contract awards

Position Overview:
We are seeking a Network and Systems Engineer to design, implement, secure, and maintain critical network infrastructure. The ideal candidate will have a strong foundation in networking and systems engineering, with the ability to troubleshoot complex issues, collaborate across teams, and deliver innovative solutions to meet mission needs.

Responsibilities:

Design & Implementation: Plan, design, implement, and maintain computer networks, including local area networks (LANs), wide area networks (WANs), and Internet connectivity.
Network Devices: Configure and manage routers, switches, firewalls, and other core network devices.
Network Security: Implement and monitor firewalls, intrusion detection/prevention systems, and other security controls to protect against unauthorized access and malicious activity.
Troubleshooting & Maintenance: Diagnose and resolve network issues, perform preventive maintenance, and ensure network performance, reliability, and efficiency.
Collaboration & Communication: Partner with IT, systems, and cybersecurity teams to ensure network infrastructure aligns with organizational needs. Communicate complex technical information to non-technical stakeholders clearly and effectively.
Continuous Improvement: Stay current with emerging network technologies, standards, and best practices; recommend and apply improvements to infrastructure and services.

Required Qualifications

Education & Experience:
- Master’s degree with 3+ years of relevant experience, or
- Bachelor’s degree with 5+ years of relevant experience, or
- Equivalent combination of education and experience.
Strong background in LAN/WAN design, routing, and switching.
Hands-on experience configuring and managing firewalls and intrusion detection systems.
Proficiency with troubleshooting network connectivity, performance, and security issues.
Knowledge of current network security standards and best practices.
Excellent collaboration and communication skills.

Preferred Qualifications:

Ability to apply principles, theories, and concepts to solve complex technical problems with innovative solutions.
Demonstrated ability to work under general direction and deliver results that meet objectives.
Experience working with internal and external customers, providing technical solutions to challenging issues.