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155 junior software engineer jobs at 78 companies in Winchester, VA

1mo
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Junior Software Engineer
Denver or St. Louis or Sterling or Springfield
$69k-$142k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
0+ YOEBachelor's in CS/Software/IS required; 0–3 years software development experience; experience with Java and/or Python; familiarity with web development, relational databases, SDLC/Agile; TS/SCI clearance with polygraph; up to 10% travel.
Java, Python, ArcGIS, GeoServer, OpenLayers, Cesium
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1mo
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Junior Software Engineer
Reston, Virginia, United States
$90k-$122k/yr HybridFull Time
Verisign
VerisignNASDAQ: VRSN: Provides internet domain name registry and DNS infrastructure services.
2+ YOE2+ years software development experience, BS in Computer Science or equivalent, proficiency in C/C++/Rust and Python, Linux, CI/CD and infrastructure automation (Terraform, Ansible, Puppet, OpenStack), strong CS fundamentals and communication skills.
Terraform, Ansible, Puppet, OpenStack, Jenkins, Groovy, GitHub, Python Behave, Cucumber, C, C++, Rust, Python, Linux, tcpdump, Docker, Kubernetes
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1w
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Junior Software Engineer
Warrenton or McLean or Fort Eisenhower
$100k-$150k/yr OnsiteFull Time
Altamira Technologies
Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.
Bachelor's in CS or related, familiarity with Java/Python/JavaScript and modern web stacks, TS/SCI clearance required, strong communication and problem-solving skills.
Java, Python, JavaScript, Typescript, Angular, React, ElasticSearch, ELK stack, Redis, Web Services (REST), docker, lxc, Kubernetes, helm, Machine Learning, Data Analytics, Android, NoSQL, SQL, Xmidas, Digital Signal Processing
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2mo
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Junior Software Developer Engineer - Chantilly, VA
Chantilly, Virginia, United States
$90k-$140k/yr OnsiteFull Time
ICR
ICR: Specializes in government software solutions.
1+ YOEBachelor’s in STEM, TS/SSBI eligible, 1+ year professional software development and design/architecture experience, proficient in at least one programming language.
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Junior Software Engineer Internship
Herndon, Virginia, United States
OnsiteInternship
Clarity Innovations
Clarity Innovations: Provides software and data engineering for national security missions.
Pursuing a BS in CS/CE or related field, US citizenship required to obtain Top Secret clearance, experience with Go or Python, understanding of networking and data structures, familiarity with Docker/Kubernetes and CI/CD.
Go, Python, Docker, Kubernetes
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2w
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Junior Software Developer
Reston, Virginia, United States
$80k-$121k/yr OnsiteFull Time
Absolute Business Solutions Corp
Absolute Business Solutions Corp: Provides technology and intelligence services to the US government.
3+ YOETS/SCI clearance (ability to obtain/maintain CI polygraph),Bachelor's degree or 7 years substitute,minimum 3 years relevant experience,experience with coding,testing,debugging,deployment and adherence to security standards.
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1mo
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Junior Software Developer - TS/SCI
Herndon or Chantilly
$88k-$155k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
2+ YOETop Secret/SCI required. Bachelor’s degree in EE/CS/CE or related, 2+ years software development experience, proficiency with Python and C/C++, Linux, Git; experience with AWS, Docker, Kubernetes, and ML frameworks preferred.
Python, C/C++, Linux, Git, Amazon Web Services (AWS), Docker, Kubernetes, PyTorch, TensorFlow, X-Midas, OpenCV, Keras, Qt/PyQt, Android, GitLab CI/CD, CUDA
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1w
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Software Engineer
Middletown or Manassas
$90k-$100k/yr OnsiteFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Designs and manufactures defense and mission-critical technology solutions.
1+ YOEBachelor's in Software Engineering/Engineering/Science/Math plus 1 year or Master's; U.S. citizenship and Department of Defense Secret clearance at hire; proficiency in C++, networking (AMQP,TCP/UDP), and Git.
C++, STL, AMQP, TCP, UDP, Git, Linux, Kubernetes, Docker, QT Framework, Jira, Confluence, BYG-1
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3w
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Junior Software Engineer
Herndon, Virginia, United States
$80k-$128k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
2+ YOEActive TS/SCI (or eligibility), Java OOP experience, 2+ years relevant experience, ability to work in SCIF, EMR not mentioned, strong communication and teamwork.
Java, Python, React, Javascript, Postgres, SQL
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3w
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Junior Software Engineer
Herndon, Virginia, United States
$80k-$128k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
2+ YOEBachelor's degree with 2+ years or Master's degree; active TS/SCI or eligibility and polygraph ability; strong Java OOP; 2+ years experience; strong communication; full-time work in a SCIF.
Java, Python, React, JavaScript, Postgres, SQL
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2w
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Junior Software Developer (Clearance Required)
Reston, Virginia, United States
$91k-$142k/yr OnsiteFull Time
Noblis
Noblis: Nonprofit science, technology, and strategy firm supporting government missions.
1+ YOEActive TS/SCI with polygraph, U.S. citizenship, 1+ year related experience (degree-experience tradeoffs), full-stack Python and JavaScript experience, database experience, SDLC and testing knowledge, and Git proficiency.
Python, JavaScript, PostgreSQL, MySQL, Oracle, MongoDB, Git, Docker, Kubernetes, FastAPI, Flask, Python3
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2d
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Software Engineer
Ashburn, Virginia, United States
$120k-$150k/yr OnsiteFull Time
Telos
TelosNASDAQ: TLS: Provides cyber, cloud, and enterprise security solutions for government and commercial clients.
2+ YOE2+ years software engineering experience with technical ownership; strong TypeScript, Vue 3, Node.js; experience with desktop integrations, distributed systems, CI/CD, AWS/Kubernetes; US citizenship eligibility required.
TypeScript, Vue 3 Composition API, Quasar, Pinia, Electron, Node.js, Fastify, GitLab CI/CD, AWS, Kubernetes, Pulumi, Docker, Nx, Vitest, Playwright, Node-API, C/C++, SWIG
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3w
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Junior - Mid Software Developer TS/SCI
Chantilly, Virginia, United States
OnsiteFull Time
TENICA and Associates
TENICA and Associates: Provides government services in defense, homeland security, and cybersecurity.
Active TS/SCI clearance required; proficiency in at least one OOP language (Python, Java, or C++), Git, database integration, strong problem-solving and rapid-learning ability.
Python, Java, C++, Git, Docker, Kubernetes
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3w
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Software Engineer II
Lone Tree or Sparks or Longmont or Hagerstown or Herndon or Englewood
$94k-$130k/yr HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
2+ YOEBachelor's in CS or related,2+ years software development experience,proficiency in C++,Java,Python,knowledge of engineering principles,ability to work in multidisciplinary teams.
C++, Java, Python, C, C#, HTML, Bash, RTOS, AI/ML
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1mo
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Junior Software Engineer (Modeling & Simulation) - TS/SCI
Chantilly, Virginia, United States
OnsiteFull Time
TENICA
TENICA: Provides national security and defense services to government agencies.
Active TS/SCI clearance with polygraph required; proficiency in an OOP language (Python, Java, or C++), Git, and databases; full‑stack development and rapid prototyping experience; strong problem‑solving and collaboration skills.
Python, Java, C++, Git, Docker, Kubernetes, NoSQL
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1mo
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Expert Software Developer
Washington or Sterling
HybridFull Time
Guydo Consulting
Guydo Consulting: Specialized IT consulting and software engineering for government agencies.
2+ YOEActive Top Secret/SCI clearance required, Bachelor’s degree, 2+ years software engineering experience, proficiency with JavaScript/TypeScript/Node.js/Angular, relational and NoSQL databases, and web application development.
JavaScript, TypeScript, Node.js, Angular, SQL, NoSQL, Apache, Tomcat, JBoss, Nginx, IIS, Java, C#, Spring, Maven, Python, Kubernetes, UML, REST, Oracle, PostgreSQL, MySQL, MongoDB, Microsoft PowerApps, HTML5, CSS3, LESS/SCSS, Bootstrap, Spring Security, Docker, VS Code, CI/CD, Jira, Confluence
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1w
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Software Developer
Washington or Chantilly
RemoteFull Time
AnaVation
AnaVation: Providing technical engineering and cybersecurity solutions for federal agencies.
Bachelor's in CS/SE/IT, software development experience under general supervision, familiarity with secure coding, CI/CD/DevSecOps, eligibility for DHS EOD and Secret clearance, strong communication and attention to detail.
DevSecOps, CI/CD, AWS, Azure, containers, microservices, version control
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1mo
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NLP/Linguistics Software Engineer
Somerville or Reston or Boston or Cleveland or Australia or Canada or Israel or Japan or United Kingdom
$100k-$120k/yr HybridFull Time
Babel Street
Babel Street: AI-powered identity intelligence and risk operations software solutions.
2+ YOE2–4 years software engineering experience; proficiency in Java or Python; Bachelor's in Computer Science, Linguistics, or related; familiarity with Elasticsearch, Kubernetes, and cloud-native systems preferred; strong problem-solving and collaboration skills.
Java, Python, Elasticsearch, Kubernetes
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5d
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Cleared Software Engineer
Chantilly or Charlottesville
$81k-$142k/yr OnsiteFull Time
General Atomics Aeronautical Systems
General Atomics Aeronautical Systems: Designs and manufactures unmanned aircraft and radar systems.
2+ YOEBachelors or masters in CS or related (or equiv. experience), ~2 years software development, Java, Linux, AWS, Docker, Kubernetes, Top Secret/SCI with CI polygraph and US citizenship required.
Java, Linux, AWS, Docker, Kubernetes
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Flight Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Lynk Global
Lynk Global: Enables direct satellite-to-phone connectivity for standard mobile devices.
Proficiency in C/C++/Rust, Linux, hardware interfaces (CAN, I2C, SPI, RS-422/485), Git and CI/CD, automated testing, BS degree in engineering or equivalent experience, ability to develop and test flight software and telemetry.
C, C++, Rust, Linux, CAN, I2C, SPI, RS-422, RS-485, IPC, Git, CI/CD, Yocto/OpenEmbedded, Protocol Buffers, ZeroMQ, gRPC, systemd
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