Systems Engineer:
*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.

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 *

Systems Engineer

Description
Seeking an experienced Systems Engineer with Intelligence Community experience to support the modernization of an existing systems engineering training program. 
The selected candidate will be responsible for leading the technical refresh and redesign of a current week-long Systems Engineering training course. The existing course is outdated and requires a comprehensive review, update, and redesign to better align with current systems engineering practices, mission needs, and adult learning principles.
The Systems Engineer will serve as the primary technical subject matter expert for the course modernization effort and will collaborate closely with internal instructional systems designers, multimedia specialists, graphics professionals, and other stakeholders to produce an updated, engaging, and mission-relevant training product.

The Systems Engineer will be responsible for:

Qualifications

Candidates must possess:

Desired Qualifications:

The ideal candidate will also have:

Prior experience serving as a technical instructor, course developer, curriculum SME, training lead, or workshop facilitator.

The position is located in Chantilly, VA.

Integration Engineer
Chantilly, VA 
Primary Responsibilities:

Qualifications:

Preferred Qualifications:

Full-Stack Software Engineer 
Chantilly, VA 

Primary Responsibilities:

Basic Qualifications:

Preferred Qualifications:

Position: Technical Targeter
Location: Chantilly, VA

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 *

Description:

Duties And Responsibilities:

Desired Skills:

Education Requirement:

Experience Requirement:

Position: Technical Targeter
Location: Chantilly

Description:

Duties And Responsibilities:

Desired Skills:

Education Requirement:

Experience Requirement:

Basic Qualifications for a Principal Cyber Software Test Engineer:

 

Basic Qualifications for a Sr. Principal Cyber Software Test Engineer:

 

Preferred Qualifications for both levels:

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

Required Qualifications

Desired Qualifications

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

Required Qualifications

Desired Qualifications

 

Title: Senior Software 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.

As a Senior Software Engineer, you will play a key role in designing, developing, testing, and deploying new features for a critical data transmission application that directly supports the US intelligence community. You will collaborate with a small, highly skilled team to build a robust, secure system that serves as the interface between multiple enterprise networks. This application plays a vital role in transmitting critical intelligence data from field sources to downstream systems. Your contributions will be instrumental as the application evolves into the central hub for all NiFi channels. 

 Responsibilities:

Work within Agile development frameworks to iterate and deliver software solutions that meet mission-critical objectives.

Required Qualifications:

Desired Qualifications:

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.

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 *

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.

 

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:

What You’ll Do:

Required Qualifications:

Tech CI Analyst
Chantilly, VA

*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.

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

 

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

QUALIFICATIONS

REQUIRED KNOWLEDGE/SKILLS

DESIRED KNOWLEDGE/SKILLS

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 *

Title: All Source Analyst/Technical Targeter

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *
Location: Chantilly, VA
*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.

All Source Analyst/Technical Targeter
Level:  Senior
Location: Dulles Corridor
Tasks:
 

Qualifications:
TS/SCI with poly Bachelors degree in technical relevant field or 4 years of additional relevant experience 6+ years working for the client in a targeting / data science role

Experience ingesting large datasets Scripting using Excel, Python, or similar technologies Extracting data using SQL, Presto, S3, or similar technologies Experience with data visualization tools like Elasticsearch, Kibana, Tableau

 

 

Position Chief Data Engineer
Work Location McLean, VA
Security Clearance 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.

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
We are seeking a skilled Data Engineer to support one of our Intelligence customers. The ideal candidate will have a strong background in data engineering and integration, with a focus on normalizing data from diverse sources for advanced analytical methodologies. The Data Engineer will enhance the program's ability to integrate data from varied data sets and capitalize on emerging analytic capabilities developed across the Intelligence Community (IC).

Key Responsibilities:

Qualifications

Preferred Qualifications:

Technical Training Instructor:
*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.

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 *

Technical Training Instructor
An experienced targeter/targeting instructor to assist with a technical training program for the Customer’s targeting occupation by providing SME support to curriculum development and delivery of course material.  The instructor should have experience as a Technical Targeting Analyst (TTA) or other multi-source targeting experience.  The candidate must have expertise in and the ability to advise others on the use of common TTA tools and methodologies.  The ideal candidate should be familiar with basic instructional and course design principles to help build course curriculum.  The training may include blended and distance learning solutions, along with asynchronous and synchronous approaches to training.  The candidate will also help carry out training evaluations and support creation of a variety of training products such as guides, handbooks, and job aids. 
 
 Required Skills: 
 

The position is located in Chantilly, VA.

Technical Instructional Systems Designer:
*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.

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 *

Seeking an experienced Technical Instructional Systems Designer (TISD) to support an innovative training program for the Customer’s main technical training office. The candidate will provide TISD support to technical training classes to develop occupational skillsets and help generate dynamic content and design class activities in conjunction with other instructional designers and instructors. The candidate will support multiple training efforts, and work will revolve around content design and development of courses for technical occupational cadres, including scenario-based learning. The candidate will also be responsible for creating lesson plans and learning requirements, along with maintaining the currency of course materials and conducting course reviews to gather feedback and implement adjustments to training material. S/he will utilize project management skills to ensure effective course development and delivery. The position is located in Chantilly, VA.

Qualifications

Desired Qualifications:

Position Data Strategy Integration Expert
Work Location McLean, VA
Security Clearance TS/SCI with CI Polygraph

We are seeking an experienced Data Strategy Integration Expert to support the Office of the Director of National Intelligence (ODNI). The ideal candidate will have at least 8 years of relevant experience and will be responsible for integrating data strategy across data science, development, and subject matter expert teams. The role requires documentation and implementation of data strategies, ensuring data quality standards, and program data alignment with relevant IC policies and DNI instructions, especially ICD 504 and instruction 95.01. The candidate will monitor progress against established data goals and provide data governance information to senior leadership in various formats.

Key Responsibilities:

Qualifications:

Technical Training Instructor:
*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.

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 *

Seeking an experienced Technical Training Instructor on a training program for technical research, development, and engineering by providing instructional expertise to newly developed courses. Initially the instructor will support the occupational onboarding course that will be approximately two weeks long and will run approximately four times per year, and longer term will include other courses as the occupational curriculum expands. The ideal candidate should be familiar with basic instructional and course design principles to help build course curriculum. The training may include blended and distance learning solutions, along with asynchronous and synchronous approaches to training. The candidate will also help carry out training evaluations, and support creation of a variety of training products such as guides, handbooks, and job aids. The training will emphasize student-centered, experiential learning that requires strong facilitation skills. The candidate will assist with asserting student performance, monitor progress and provide feedback. The candidate will assist the training team with course reviews and modifications between course running's. 

The position is located in Chantilly, VA.

Qualifications

Desired Qualifications: 

Title: Data 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.

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 *

Develop new tools, code, and services to execute data engineering activities involving data of varying types and in varying conditions. Activities include the following tasks: Movement of structure and unstructured data using approved methods. Execute data ingestion activities for storing data in a local or enterprise level location. Develop code to format data that supports exploration. Analyze source data formats and work with Data Scientists and partners to determine the formats and transforms that best meet mission objectives. Develop code and tools to provide one-time and on-going data extraction from various repositories, formatting and transformations into enterprise or standalone data models. Develop new ETL and perform O&M and enhancements on existing ETL code using best practices/standards. Develop and deliver documentation for each project including ETL mappings, code use guide, code location and access instructions.

Required Skills:

​​​​​​​

Title: Software 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.

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 *

Basic Qualifications
• Bachelor’s Degree in Computer Science, Information Systems, Engineering or related STEM degree and a minimum of 9 years related experience.
• Experience with Software Architecture
• Requirements definition – to include iterative derivation of requirements with customer input
• Must have 8+ years development experience with C#
Preferred Qualifications
Candidates with these desired skills will be given preferential consideration:
• 5+ years experience with Java, Android
• 3+ years experience with C, C++, and/or Assembly
• 2+ years experience with PowerShell
• 2+ years experience leading a software development team

 

Title: Cyber Technical Analyst Advisor
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.

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 *

Tasks:
Cyber intrusion investigations
Review and analysis of cyber security trends
Technical solutioning
Requirements:
Strong understanding of cybersecurity
Familiarity with custom toolsets
Understanding of computer networks and vulnerabilities analysis
Previous experience with AI/ML solutioning
Demonstrated ability to create custom scripts
Creation of data visualizations
Key Skills:
Strong understanding of cybersecurity principles and ability to provide assessments.
Understanding of ML/AI processes and be able to evaluate the efficiency of models
Understanding of networks and various networking architectures
Scripting ability to be able to manipulate and parse through unstructured and structured datasets (Powershell, Python, SQL)
Proficiency in visualizations
Familiarity with sponsor tools
Desired Skills:
Ability to convey technical topics or conclusions to audiences of varying technical literacy
Previous experience analyzing Advanced Persistent Threat (APT) actors
Experience working with AI/ML processes and assessing model efficiency
Education Requirement

 Experience Requirement

​​​​​​​

GRAPH DATABASE ENGINEER
Chantilly, VA 

JOB DESCRIPTION

We are looking for an experienced Systems Software Engineer to join our team, interested in designing, developing and maintaining essential software systems. The optimal candidate will have demonstrated experience integrating solutions with graph databases, such as JanusGraph. They will also have a strong background in systems software development, experience with 3rd party system integration, expertise in ElasticSearch, and a solid understanding of data modeling concepts. This is a fantastic opportunity to work on a challenging project that requires innovative solutions and collaborative problem-solving.

KEY RESPONSIBILITIES

· Design, develop, test, and deploy scalable and efficient software solutions

· Collaborate with cross-functional teams to identify and prioritize project requirements

· Participate with code reviews and ensure high-quality, modular, and reusable code

· Troubleshoot and debug issues in the application, including performance optimization and error handling

· Stay up-to-date with industry trends and emerging technologies, applying this knowledge to improve our application

· Design and implement data models that meet the needs of the application, ensuring data consistency and integrity

 

EDUCATION AND EXPERIENCE

· 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.

· 5+ years of related software development experience.

REQUIRED QUALIFICATIONS

· 5+ years of experience in systems software development in NodeJS

· Strong proficiency working with graph databases (for example JanusGraph) and graph query languages

· Strong understanding of software design patterns, principles and best practices

· Excellent problem-solving skills, with the ability to work effectively in a team environment

· Basic understanding of data modeling concepts, including entity-relationship, data normalization, and denormalization

· Experience with Git workflows, including feature branching, pull requests and code reviews

· Ability to work effectively in a Linux-based development environment

DESIRED QUALIFICATIONS

· Experience with Node.js, Express, MongoDB and Cassandra

· In-depth knowledge of ElasticSearch, including indexing, querying and aggregation

· Knowledge of containerization leveraging Kubernetes

· Familiarity with CI/CD pipelines and automation tools such as Jenkins or Argo CD

· Hands-on experience working with message brokers such as RabbitMQ or AWS SQS

Python Developer: works as part of a team to implement functionality as part of multiple efforts to build data processing applications while taking ownership of architectural design components, technical implementations, and the software development lifecycle. A successful developer will be able to implement functionality to interface with an existing system, as well as writing new functionality to interface with various open-source tools. Knowledge of the software development lifecycle is a must, as the developer will help translate requirements into user stories to be implemented as part of a team. As part of the implementation phase, the developer is expected to include automated tests as part of the CI/CD pipeline to validate the code that is being written. Knowledge of the cloud software deployment process is also key, including familiarity with parallel processing in Python, large data processing using packages such as PySpark, and optimizing Python code for deployment as part of a containerized architecture. 
Role Highlights:

Required Skills:

Preferred Skills/Experience:

Participates in development efforts to deliver a complete software solution. This position is for work across the cloud-based software development lifecycle (front end, back end, database, cloud deployment and orchestration, etc.). Design and implement all levels of the solution: data layer, application code, user interface. Design and deliver APIs and integrations with other software systems and databases. Architect for optimal use of enterprise infrastructure (cloud) and security requirements. Experience in the following: Delivering the design and development of software applications. Programming/coding from the data layer through the application layer, through the user interface. Decomposing functional requirements into technical specifications and tasks. Software development frameworks and languages such as JavaScript, TypeScript, React, Python, etc. and data management tools such as SQL and XML. Developing and maintaining unit test scripts. Developing APIs and web services for integration between systems and data sets.    
Key Responsibilities: 

Required Skills:

Senior Systems Administrator
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.

Responsibilities:

Basic Qualifications:

Preferred Qualifications:

DATA ENGINEER 

Chantilly, VA 

JOB DESCRIPTION

We’re looking for a Data 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.

· At least five (5) years of related experience software engineering 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

SOFTWARE ENGINEER – FRONT END 
Chantilly, VA 

JOB DESCRIPTION

The Front-End Software Engineer will design and develop complex new software products, or make significant enhancements to existing software. The ideal candidate is a hands-on developer with significant experience in building modular, reusable components and features. They must have extensive, firsthand technical expertise in a modern front-end framework. They must be at ease working in an Agile environment with little supervision. This person should embody a passion for continuous improvement and innovation.

KEY RESPONSIBILITIES

· Build reusable components that align with the system design patterns.

· Optimize application for maximum speed and scalability.

· Participate in team design and code reviews.

· Collaborate with a small team of engineers and designers to understand business requirements and user experience goals.

· Provide recommendations for continuous improvement.

· Provide ongoing maintenance, support, and enhancements in existing systems and platforms.

· Troubleshoots complex problems and provides customer support for software systems and application issues.

EDUCATION AND EXPERIENCE

· 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.

· 8 to 10 years of related software development experience.

REQUIRED QUALIFICATIONS

· Extensive experience with Angular

· Expert knowledge of Javascript, HTML, and CSS.

· Experience designing complex search interfaces.

· Experience in optimizing web applications for performance and usability.

· Experience with integrating with third part APIs.

· Proficient understanding of code versioning tools, such as Git

· Experience with Linux operating systems

DESIRED QUALIFICATIONS

· Experience with SASS or LESS.

· Hands-on experience working with NodeJS, MongoDB

· Familiarity constructing ElasticSearch queries

Supports software and data engineering with DevOps tools, culture, and process changes to enable rapid and stable delivery of applications and technologies. Identifies, prototypes, engineers, and deploys emerging software engineering and DevOps tools into existing baseline. Operates and supports a suite of enterprise DevOps services. Establishes, manages, automates, and enhances DevOps pipelines. Defines and promotes enterprise software engineering and DevOps standards, practices, and behaviors. Supports project teams as they integrate into the DevOps environment. May work in hybrid environments (multi-cloud, multi-domain, private/public). Writes and maintains infrastructure and configuration files, DevOps tool configuration scripts, and application run-time configuration scripts. Facilitates technical exchange meetings to identify, collect, and establish coordinated requirements with key stakeholders. 
Key Responsibilities: 

Required Skills:

 

SOFTWARE ENGINEER
Chantilly, VA 

JOB DESCRIPTION

The Software Engineer will design and develop complex new software products, or make significant enhancements to existing software. The candidate must have strong, firsthand technical expertise in a variety of big data technologies and the proven ability to fashion robust scalable solutions that can manage large data sets. The candidate must be at ease working in an Agile environment with little supervision. This person should embody a passion for continuous improvement and innovation.

KEY RESPONSIBILITIES

· Design and develop a processing platform using various configuration management technologies.

· Provide ongoing maintenance, support, and enhancements in existing systems and platforms.

· Troubleshoots complex problems and provides customer support for software systems and application issues.

· Provide recommendations for continuous improvement.

· Work alongside other engineers on the team to sustain and advance our organization’s capabilities.

EDUCATION AND EXPERIENCE

· 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.

· 10 to 15 years of related software engineering experience.

REQUIRED QUALIFICATIONS

· Hands-on experience with modern programming languages including Python or NodeJS.

· Hands-on experience working with Elastic Search, Mongo DB, Docker, Kubernetes, Rabbit MQ, and Nifi.

· DevOps experience building and deploying cloud infrastructure with technologies such as Ansible, Cloud Formation, etc.

DESIRED QUALIFICATIONS

· Experience with building APIs and services using REST

· Experience with monitoring technologies like ELK, Prometheus, Grafana, etc.

· Experience with build automation technologies like Maven, Jenkins, etc.

· Experience with Linux (preferred)

Position: Cloud Engineer (Salary Range: $150,000 – $210,000)
Location: Chantilly, VA

Responsibilities:

Requirements:

Title: Software Engineer
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.
 

The Sponsor is looking for a Software Engineer to join an existing team in supporting small applications development environment requirements
 

1. (Mandatory) Demonstrated experience using JavaScript (JS).
2. (Mandatory) Demonstrated experience with these development languages: Java, NodeJS, and Angular.
3. (Desired) Demonstrated experience automating and scripting using Bash and Teraform.
4. (Desired) Demonstrated experience troubleshooting complex issues with managing and deploying applications in the cloud.
6. (Desired) Demonstrated experience with REST Web services and SOAP Web services.
7. (Desired) Demonstrated experience with Spring, Spring Security and Hibernate frameworks.
8. (Desired) Demonstrated experience with AWS CloudFormation Templates, Load Balancer, Autoscaling, Security Groups, S3 and KMS.
9. (Desired) Demonstrated experience automating configuration and provisioning of cloud resources.
10. (Desired) Demonstrated experience OpenSSL and TLS encryption protocols.
11. (Desired)  Demonstrated experience administering databases like MySQL.
12. (Desired) Demonstrated experience administering no-SQL databases like MongoDB.
13.(Desired) Demonstrated experience installing and managing Apache, Tomcat and Express servers

 

 

Position: Linux Systems Engineer (Salary Range: $140,000 – $210,000)
Location: Chantilly, VA

HOW A LINUX SYSTEMS ENGINEER WILL MAKE AN IMPACT

WHAT YOU’LL NEED TO SUCCEED: