140 junior react developer jobs at 81 companies in Fairfax, VA
🚀PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
ManTech: Provides technology solutions for defense and intelligence agencies.
1+ YOEBachelor's in IT-related field and 1+ years software development experience. Must have active TS/SCI with polygraph. Proficiency in Python, Git, SQL, HTML/CSS/JavaScript; experience with Docker, Ansible, React, and unit testing frameworks.
Akumen: Provides technology, cybersecurity, and data services to federal agencies.
2+ YOEBachelor's or equivalent, 2+ years software development experience, proficiency with C#/.NET or Java, JavaScript frameworks (React/Angular), Microsoft Azure and Azure DevOps, RESTful APIs, and relational databases.
C#/.NET, Java, JavaScript, React, Angular, Microsoft Azure, Azure DevOps, RESTful APIs, SQL Server, PostgreSQL, ASP.NET Core, Spring Boot, Docker, Kubernetes, Terraform, Bicep, PowerShell, Python, Bash, CI/CD pipelines
BLN24: Delivers digital innovation and strategic communications for federal agencies.
1+ YOE1-2 years DevOps, 1+ year AWS and GitLab CI/CD, strong Docker/Kubernetes, scripting, Terraform or AWS CDK; Linux, Git; security and compliance knowledge.
ASSYST: An award-winning IT firm that provides digital transformation, DevSecOps, cyber security, and AI integration services for government agencies.
0+ YOE0–2 years software development experience; eligible for security clearance; basic knowledge of HTML5, CSS3, JavaScript (ES6+), a front-end framework (React/Angular/Vue.js), a back-end technology (.NET/Node.js/Java Spring Boot/Python), REST APIs, SQL/NoSQL, and Git.
JRAD: Provides technical research and defense support to federal agencies.
0+ YOEBachelor's in CS or related, 0-3 years software development experience, Java/Spring preferred, proficiency with OOP, data structures, REST/microservices, databases, containerization, Agile, and security standards; able to pass DHS suitability screening.
Java, C#, C++, ASP.Net, Python, JavaScript, Spring MVC, Spring Boot, SSO, Scala, Http4s, ETL, Node.js, React, Angular, Vue.js, PostgreSQL, MySQL, MongoDB, RESTful APIs, microservices, Docker, Kubernetes, Git, Github, JIRA, SAFe, AWS, Microsoft Azure, Google Cloud Platform, Jenkins, GitLab CI/CD, GitHub Actions, JUnit, PyTest, Jest, OWASP, Section 508, NIST
Cav: Continuous cyber assurance platform for high-reliability organizations.
0+ YOE0–2 years software development experience; familiarity with modern frontend frameworks, backend development (Python/Node.js/Java), REST APIs, relational/NoSQL databases; interest in AI/ML and LLMs; strong communication and problem-solving.
Visionist: Provides software engineering and data analytics for national security.
3+ YOEActive Top Secret (TS/SCI) with polygraph required; Bachelor's in a technical field (or +2 years experience); 3 years software development (1 year with Master's); experience with Kotlin, Java, React/Redux, Mongo/SQL, Git/SVN; willingness to obtain AWS/Kubernetes certifications.
BigBear.aiNYSE: BBAI: AI-powered decision intelligence for complex mission environments.
3+ YOEActive TS/SCI with Poly clearance; 3+ years software engineering with a Bachelor’s in a technical discipline (or 7+ years experience); strong JavaScript/TypeScript, HTML, CSS; React/Angular; relational DBs; Docker, Git, Linux.
Geospatial Front End Developer – Multiple Positions at Junior/Mid/Senior Levels
Springfield or Vienna or St. Louis
OnsiteFull Time
NV5: Provides engineering, consulting, and geospatial solutions for infrastructure projects.
2+ YOEUS citizen with active Top Secret/SCI clearance, Bachelor's in CS/GIS/Math/STEM, 2+ years front-end web development using HTML5/CSS3/TypeScript/JavaScript and frameworks (React/Angular/Vue); experience with scalable, secure applications and CI/CD.
Entegra Systems: Provides engineering and intelligence analysis for government missions.
7+ YOESeven years in software development; two years in SIGINT; TS/SCI with poly; front-end web development with JavaScript/React; Hadoop/HDFS; distributed storage; Windows/Linux; ability to guide juniors.
Pioneering Evolution: Provides strategic acquisition and software solutions for defense organizations.
0+ YOEBachelor's in CS or related,0-3 years development experience,experience with .NET Core/ASP.NET Core,C# and modern front-end frameworks,RESTful APIs,relational databases and Git.
.NET Core, ASP.NET Core, Angular, React, Vue.js, C#, PostgreSQL, SQL Server, Git, Microsoft Azure, AWS, Docker, Kubernetes
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.
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.
Constellation Inc: Provides IT and data consulting services to federal agencies.
2+ YOE2+ years software development experience with React and Java/Spring or similar, proficiency in TypeScript/HTML/CSS, unit testing (Jest), Git and CI/CD, and U.S. citizenship for background investigation.
React, Java, Spring Boot, C#, .NET, HTML, TypeScript, CSS, RESTful APIs, Jest, Git, CI/CD
LegenceNASDAQ: LGN: Provider of engineering, installation, and maintenance for building systems.
2+ YOEBachelor's degree in a technical discipline, 2+ years full-stack web development experience, proficiency with React and Python or Java, Microsoft Azure and SQL Server experience, familiarity with Claude Code and AI-assisted development. U.S. work authorization required; no visa sponsorship.
Microsoft Azure, Azure App Service, Azure Functions, Azure SQL, Cosmos DB, Azure AI Foundry, Azure OpenAI Service, Azure DevOps, GitHub Actions, Microsoft Entra ID, React, Python, Java, Microsoft SQL Server, Microsoft Fabric, Claude Code, Cursor, GitHub Copilot, Crystal Reports, Microsoft Power BI, Spectrum