146 reactjs developer jobs at 67 companies in Hagerstown, MD
🚀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).
BDR Solutions: Provider of IT, engineering, and consulting for federal agencies.
4+ YOEUS citizen with active IRS MBI, 4+ years ReactJS experience, Java/Spring Boot backend, enterprise IAM (SSO/OAuth2/SAML/OIDC/RBAC), Section 508/WCAG 2.1 accessibility, and testing/validation experience.
All Native Group: Provides professional, technical, and government contracting services.
5+ YOE5+ years full-stack experience with Python, FastAPI, ReactJS, PostgreSQL, Docker and AWS; CI/CD and TDD practices; public trust clearance eligibility; bachelor's in CS or equivalent.
Emmes: Provides full-service clinical research and technology-enabled development solutions.
4+ YOE4+ years experience in ReactJS, JavaScript/TypeScript; Node.js/Express; AWS Lambda; GraphQL; relational/NoSQL databases; SPA; authentication and data caching; API security; DynamoDB/Aurora; Git/GitHub/SVN; Agile.
Two Six Technologies: Develops cybersecurity and data systems for national security missions.
5+ YOE5+ years software development experience; strong proficiency in Typescript, React, Nextjs, and Python; experience with cloud-hosted web applications; active TS/SCI with polygraph required; Agile team experience.
LTS: Provides IT services and software development to support federal healthcare modernization initiatives.
5+ YOEBachelor's degree in CS/IT/Engineering, 5+ years software development in Agile, experience with Java/C#/JavaScript/Python, web services/APIs, Git, CI/CD and DevSecOps, and knowledge of secure coding and federal cybersecurity.
Insight Xcite: A mission-focused consulting firm that supports critical government programs with engineering, technology, cybersecurity, analytics, and operational expertise.
6+ YOEActive TS/SCI with Full-Scope Polygraph, 6+ years software development experience, proficiency in Java/Python/C++/JavaScript, API and distributed systems experience, Git and Agile experience; cloud, DevOps, and containerization preferred.
Amivero: Provides digital services and IT modernization for government agencies.
7+ YOEU.S. citizenship required. BA/BS or equivalent experience, 7+ years full-stack development, familiarity with GenAI/LLMs, experience with Python/Java/JavaScript/TypeScript, cloud (AWS/Google), SQL/NoSQL, APIs, and DevSecOps.
React, Angular, SQL, NoSQL, Large Language Models (LLMs), transformers, Python, Java, JavaScript, TypeScript, AWS, Google, RESTful services, DevSecOps, GitLab, CI/CD, Google Vertex AI, AWS Bedrock
M1 Technology: Developing mission-critical technology for the U.S. intelligence community.
Proficiency with modern front-end JavaScript frameworks or backend languages, microservices architecture, AWS cloud development, SQL and NoSQL databases, and RESTful API development.
Sentrillion: Provides integrated security and surveillance technology for government infrastructure.
7+ YOEU.S. citizenship and CBP background check, BA/BS or equivalent experience, 7+ years full-stack development (React/Angular, SQL/NoSQL), familiarity with LLMs and GenAI, Python/Java/JavaScript/TypeScript, cloud (AWS, Google), API and DevSecOps experience.
Ardent Principles: Provides specialized technology and program management services to government agencies.
8+ YOESenior Applications Developer with 8-10 years of web app/UX UI experience; Angular/React/JS; Linux; Agile (Scrum/Kanban); Jira/Confluence/GitHub; cloud (AWS/C2S) or equivalents; ELK/ETL; microservices; OO languages (Python preferred)
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
6+ YOE6+ years software development experience, 3+ years with legacy enterprise systems, proficiency with Git and Python, experience with microservices, APIs, cloud platforms; TS/SCI with polygraph required.
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
9+ YOEBachelor's in CS or related field; 9+ years mobile development; React Native and native iOS/Android; Typescript; CI/CD for mobile; REST and microservices; unit and end-to-end testing.
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
9+ YOEBachelor's in CS or related field; 9+ years mobile development; React Native; Native iOS/Android; Detox; Typescript; CI/CD for mobile; REST APIs; microservices; unit & end-to-end tests.
Nightwing: Provides advanced cyber and intelligence solutions for national security.
6+ YOEExpert full‑stack developer with 4–7+ years building web applications, experience with Angular/React/JavaScript, cloud (C2S/AWS), containerization, search/analytics, Linux, ETL and AI/ML integration.
VTG: Provides force modernization and digital transformation for defense agencies.
4+ YOEActive TS/SCI with Poly; 4-7 years in design, development, deployment of web apps; experience with Angular/React/JS; Linux; cloud (C2S/AWS); ETL; microservices; OO programming; Python preferred.
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
6+ YOE6+ years software development experience, 3+ years with legacy enterprise systems, experience with microservices, APIs, Git, and basic programming (Python); TS/SCI clearance with polygraph required; HS diploma or GED required.
AGE Solutions: Technology consulting and IT services for government agencies.
5+ YOEBachelor's degree, 5+ years software development, 2+ years full‑stack (React/Vue/Angular and Node.js/Python/Java), DoD 8140 qualification (DoD 8570 IAT II), and active DoD Secret clearance.
Niyam IT: IT services and data analytics for government agencies.
7+ YOEUS citizen able to obtain Public Trust, Bachelor's degree, 7+ years full-stack development, React/Angular, SQL/NoSQL, LLM knowledge, Python/Java/JavaScript/TypeScript, cloud (AWS & Google), API and DevSecOps experience.
React, Angular, SQL, NoSQL, Large Language Models (LLMs), transformers, Python, Java, JavaScript, TypeScript, AWS, Google, Google Vertex AI, AWS Bedrock, GitLab, RESTful services
VTG: Provides engineering and digital modernization solutions for national security.
4+ YOEActive TS/SCI with Poly; 4-6 years in design/development; 5-7 years web apps with Angular/React/JS; Linux experience; AWS/C2S; ElasticSearch/Solr/OpenSearch; Docker/containerization; OO languages; ETL understanding.