4,798 software engineers jobs at 872 companies in Leesburg, VA

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Software Engineers
Annapolis Junction or Fort Meade
OnsiteFull Time
Artera Technologies
Artera Technologies: Provides software and systems engineering for the intelligence community.
Experience developing complex software systems for high-performance or data-intensive environments; TS/SCI clearance; familiarity with modern languages, frameworks, and cloud/DevOps tools.
Java, J2EE, JavaScript, C, C++, Python, Angular, Docker, Kubernetes, UNIX / Linux, MongoDB, Express, React, Node, GoLang, Vue.js, Web Services (REST, SOAP), Spring, Hibernate
1mo
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Software Development Engineers (Level 2 or 3)
Dulles, Virginia, United States
$92k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEU.S. citizen with active Top Secret clearance at time of application, Python/C++/Bash experience, 2+ years software development (Level 2) or 5+ years (Level 3), bachelor's in CS/Engineering preferred; support for ground software and test events.
Python, C++, Bash, Postgres, Ansible, PKI
1mo
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Software Development Engineers (Level 2 or 3)
Dulles, Virginia, United States
$92k-$171k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEMust be U.S. citizen with active Top Secret clearance at application; experience in Python, C++, Bash, and software development; Bachelor’s in CS/Engineering (or equivalent experience) with 2+ years (Level 2) or 5+ years (Level 3).
Python, C++, Bash, Postgres, Ansible, PKI
2mo
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Full-Stack Software Engineers (Experienced/Senior)
Chantilly or Mesa or Aurora
$127k-$233k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
5+ YOEBachelor's degree; 5+ years software development; Top Secret with SCI eligibility; CI/Polygraph after start; JS/Java/OO programming; distributed systems; cloud exposure.
Java, JavaScript, HTML5, CSS3, React, Spring, Hibernate, REST, SOAP, AWS, Git, Jenkins, Maven, Gradle, RDBMS, MongoDB
3w
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Air Force A10 Software Developers/Engineers, APACS (Multiple Levels)
Reston, Virginia, United States
$65k-$199k/yr HybridFull Time
Noblis
Noblis: Provides science and technology solutions for government missions.
1+ YOESupport DevOps/CI/CD and software development tools; automate workflows with Python/Bash; experience with Git-based platforms; US citizenship and active Secret clearance required.
GitLab CI/CD, GitHub Actions, GitLab, GitHub, Python, Bash, PowerShell, SonarQube, Jira, Linux, APACS
2mo
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We're Hiring - Software Engineers (Java/C++/Python) TS/SCI w/Poly
Annapolis Junction, Maryland, United States
$128k-$226k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Active TS/SCI w/poly security clearance and US citizenship required; Bachelor's in Computer Science (or related) or 4 years additional relevant experience; experience in software engineering roles (Java, C++, Python) and related disciplines.
Java, C++, Python
2mo
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Full-Stack Software Engineers (Experienced/Senior)
Chantilly or Aurora or Mesa
$127k-$233k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
5+ YOEBachelor’s degree; Top Secret clearance with SCI eligibility; willingness to take CI polygraph; 5+ years in designing/developing complex distributed systems; 3+ years Java; 1+ year object-oriented programming; experience with distributed version control (Git, RTC).
Java, Git, IBM Rational Team Concert, AWS, Jenkins, HTML, CSS, JavaScript, React, jQuery, OpenLayers, Spring Framework, Hibernate, RDBMS, MongoDB, XML, SOAP, REST, WSDL, Ivy, Maven, Gradle, RMI
1w
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Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
Systek
Systek: Provides systems engineering and technical assistance for defense agencies.
6+ YOE6+ years DoD software engineering experience, bachelor\u0002s degree preferred in computer science/info systems/software engineering, active DoD Top Secret/SCI clearance, BSc preferred, EM/ testing experience, strong communication and critical thinking.
1mo
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Software Engineer
Fort Belvoir, Virginia, United States
OnsiteFull Time
ANSER
ANSER: Provides research and analysis for national and homeland security missions.
7+ YOEActive Secret clearance, Bachelor's in engineering, 7+ years software engineering experience, experience with biometric systems, information assurance/encryption knowledge, Android experience, Agile/DevOps/DevSecOps, software testing and troubleshooting skills.
BAT-A, NRTIO, NXGBCC, Android, Agile, DevOps, DevSecOps
2mo
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Software Engineer
Annapolis Junction, Maryland, United States
$150k-$240k/yr OnsiteFull Time
LufCo
LufCo: Provides specialized engineering and analytic services for defense missions.
7+ YOESenior software engineer with TS/SCI clearance and 7+ years of experience; 14+ for higher level, strong PKI, Linux, and modern software stacks.
C, C++, Go, Docker, Rust, Python, Java, JavaScript, Shell Scripting, PL/SQL, React, Spring, Spring Boot, Linux, Windows, AEM, JBoss, Tomcat
2mo
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Software Engineer
Potomac, Maryland, United States
OnsiteFull Time
Kepora
Kepora: Software-focused defense contractor providing engineering solutions
12+ YOE12+ years of software engineering experience; Bachelor's in Computer Science or related field; leadership experience; strong design, debugging, documentation, and algorithm skills; ability to lead teams and develop complex software.
1mo
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Software Engineer
Arlington, Virginia, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years software engineering experience; proficiency with C#, C, C++, .NET or JavaScript; bachelor's in CS or Computer Engineering; Secret clearance required; strong communication and problem-solving skills.
C#, C, C++, .NET, JavaScript, Java, React, NodeJS, Linux, Rust
1w
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Software Engineer
Middletown or Manassas
$90k-$100k/yr OnsiteFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Engineers secure communication and mission-critical defense technology systems.
1+ YOEBachelor's in Software Engineering/Engineering/Science/Math plus 1 year or Master's; DoD Secret clearance and U.S. citizenship required; proficiency in C++, networking (AMQP,TCP/UDP), and Git.
C++, AMQP, TCP, UDP, Git, Linux, Kubernetes, Docker, QT Framework, Jira, Confluence
3mo
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Lead Software Engineer
McLean, Virginia, United States
$197k-$225k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
4+ YOELead software engineer with 4+ years of software engineering experience and cloud experience (AWS/Azure/GCP).
Java, Go, JavaScript, TypeScript, Python, SQL, HTML/CSS, AWS, Docker, Kubernetes, NoSQL, RDBMS, Lambda, Fargate
2d
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Software Engineer, Senior
Annapolis Junction, Maryland, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
10+ YOE10+ years in software, systems engineering, or cyber operations; production software delivery; programming; virtualization and containers; secure engineering; bachelor's degree or equivalent experience; ability to obtain Secret clearance.
Python, Go, Node.js, C#, Java, C++, VMware, KVM, Docker, Kubernetes, Microsoft Windows, CI/CD, API, DevSecOps, Raspberry Pi
2mo
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Software Engineer
Laurel or Fort Meade
OnsiteFull Time
Metron
Metron: Develops scientific software and mathematical models for national security.
3+ YOEActive TS/SCI with CI poly, HS diploma, 3+ years as Software Engineer, hands-on with modern web and backend tech.
HTML, CSS, JavaScript, Angular, React, Spring Boot, Node.js, Postgres, ActiveMQ, Redis, Docker, Kubernetes, GitLab, CI/CD, Java, TypeScript, Python, C++
4w
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Software Engineer
Norfolk or Fairfax
$78k-$134k/yr OnsiteFull Time
WR Systems
WR Systems: A government-focused technology contractor delivering software engineering and R&D support.
3+ YOEBS in engineering/computer science or equivalent, 3+ years software engineering, proficiency in Python and modern C++, Linux and Git experience, ability to obtain Secret clearance, willing to travel 10–20%.
Python, C++, Linux, Git, Docker, DDS, Kafka, MATLAB
2w
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Senior Software Engineer
Washington, District of Columbia, United States
$68-$113/hr OnsiteFull Time
PEMCCO
PEMCCO: Provides IT and engineering services for government transportation systems.
10+ YOEMaster's degree in a technical discipline, 10+ years software engineering experience, advanced software architecture knowledge, lifecycle and testing experience, ability to obtain security clearance.
4w
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Software Engineer
Carlsbad or Germantown
$117k-$185k/yr OnsiteFull Time
Viasat
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
4+ YOE4+ years software engineering experience in C/C++ with Linux systems, multithreading, networking, scripting (Bash/Ansible/Python), and CI/CD tools; bachelor's in CS required.
C, C++, Linux, Bash, Ansible, Python, TCP/IP, OSPF, BGP, Jenkins, JIRA, Git, Perforce, Kubernetes, Containers, CI/CD, AWS, GCP, Claude, Copilot
1w
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Principal Software Engineer
Columbia, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: AI-powered decision intelligence for complex mission environments.
11+ YOEBachelor's in CS or Software Engineering plus 11 years' relevant experience; TS/SCI w/Poly clearance; proven experience designing and delivering complex production software, making architecture decisions, and mentoring engineers.