116 javascript react engineer jobs at 59 companies in Hanover, PA
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React Software Developer
Laurel, Maryland, United States
$150k-$200k/yrHybridFull Time
SITEC: Provides specialized IT and engineering services to government agencies.
6+ YOEActive TS/SCI with Polygraph, Bachelor's in technical discipline (or 10 years' experience), 6+ years software development, strong React and JavaScript/TypeScript skills, SQL/NoSQL familiarity, able to work core hours 10:00-14:00 M-F.
Mindgrub: Digital agency providing custom software and AI innovation solutions.
4+ YOEU.S. citizen required. 4+ years front-end experience with React and JavaScript/TypeScript. Experience with reusable component libraries, client-side state, accessibility, responsive design, testing, CI/CD, and strong communication skills.
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
6+ YOETS/SCI with Polygraph; Bachelor's in a technical field or 10 years experience; React/Bootstrap, SQL/NoSQL knowledge; GitLab; Agile; ability to work core hours 10AM-2PM; accessibility knowledge
Captivation Software: Provides specialized software engineering for the intelligence and defense communities.
14+ YOETop Secret/SCI clearance with polygraph, Bachelor's in CS or related, ~14 years software engineering experience, expertise in Java and modern JavaScript frameworks, Section 508 familiarity, full-stack development across SDLC.
Javascript - Senior Developers - AI Training - Baltimore, US
Baltimore or United States
$50/hrRemoteContract, Part Time
Prolific: Platform connecting researchers and AI developers with verified participants.
BS/MS/PhD in CS or related, professional experience building scalable web apps with JavaScript/TypeScript, expert-level JS knowledge (event loop, closures, async), able to solve LeetCode Medium–Hard, and review/execute JS/TS code.
OceaneeringNYSE: OII: Global provider of engineered services for offshore energy industries.
8+ YOEBachelor's in STEM (or equivalent experience), 8+ years software engineering experience, extensive React.js and JavaScript expertise, ability to obtain DoD security clearance, leadership and mentoring experience, Linux, RESTful APIs, gRPC/MQTT/DDS/WebSockets, CI/CD and containerization knowledge.
ClearEdge: Provides software engineering and data analytics for defense agencies.
15+ YOETS/SCI with polygraph required; 15+ years software engineering experience; full-stack development expertise with Java and JavaScript; proficiency with modern JavaScript frameworks (React, Vue, Angular); familiarity with Section 508 and SDLC.
Lead Full Stack Engineer (.Net, Vue/React) - Fully Remote
Baltimore or United States
RemoteFull Time
CoverGo: No-code insurance platform for life, health, and P&C insurers.
8+ YOE2+ Mgmt8+ years full-stack experience, 2+ years in a lead role, proficiency with .NET Core,C#,GraphQL,MongoDB,Docker,Javascript,Vue.js/React.js,cloud platforms,testing,security and performance optimization.
Ruby on Rails Engineer (Consultant, Engineering & Technical Services)
Baltimore or Alabama or California or Delaware or District of Columbia or Florida or Georgia or Maryland or New Jersey or New York or North Carolina or Pennsylvania or South Carolina or Tennessee or Texas or Virginia or West Virginia
$96k-$142k/yrRemoteFull Time
Fearless: Digital services firm delivering IT solutions for government agencies.
2+ YOE2+ years Ruby on Rails full-stack experience, REST API design, JavaScript/React frontend, AWS (RDS, CloudWatch), CI/CD and Terraform, ability to obtain Public Trust clearance.
Software Engineer: Full Stack - Python, Java or JavaScript/TypeScript (TS/SCI Clearance Required)
Alexandria or Chantilly or Englewood or Gaithersburg or Saint Louis or Tucson
OnsiteFull Time
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI clearance with polygraph ability, Bachelor's in CS or related, proficiency in Python/Java/JavaScript/TypeScript, cloud (AWS/Azure), containers, CI/CD, databases, and secure coding practices.
Accenture Federal ServicesNYSE: ACN: Provides technology and consulting services to U.S. federal agencies.
5+ YOE5+ years software development experience with at least one language (Java, Python, C++, JavaScript); experience with Agile; Bachelor’s in CS or related (or 4 years experience); TS/SCI with polygraph required.
Entegra Systems: Provides engineering and intelligence analysis for government missions.
7+ YOESeven years in software development/engineering; two years in SIGINT environment; front-end web development with JavaScript/React; knowledge of distributed storage and big data tools; experience with Windows/UNIX/Linux; strong communication and mentoring skills.
Momentum Engineering: Provides engineering and technical services for national security missions.
14+ YOEActive Top Secret/SCI with NSA Full Scope Polygraph required; 14+ years software engineering experience; Bachelor's in a technical discipline (or +4 years experience); hands-on React, JavaScript, HTML5, CSS3; Agile experience.
The Baltimore Banner: Independent nonprofit digital newsroom serving the Baltimore region.
5+ YOE5+ years professional software engineering; 3+ years building production React Native mobile apps; strong JavaScript and TypeScript skills; iOS and Android experience; REST API integration; state management and CI/CD familiarity; strong communication.
Ad Hoc: Builds user-centered digital services and platforms for government agencies.
5+ YOEBachelor's degree and 5+ years software engineering experience; strong React, TypeScript, JavaScript, accessibility, REST API, testing, Git, and US citizenship with DHS Public Trust eligibility.
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.
LufCo: Provides specialized engineering and analytic services for defense missions.
8+ YOEActive TS/SCI with Polygraph; 8+ years development experience; Bachelor's in a technical field; strong Java, JavaScript, React/SolidJS, SpringBoot, Grafana skills.
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEActive TS/SCI with poly, BS in a STEM field, 5-15+ years of software engineering experience, Java/Swing, STS/Eclipse/VS Code, Maven, embedded Linux, hardware interfaces, and CI/CD.
Base-2 Solutions: Delivers engineering and technology services for national security.
9+ YOEActive TS/SCI with full scope polygraph; Bachelor's degree or equivalent; 9 years' relevant experience (Master's+7 possible); experience with Java, JavaScript/React, Spring Boot, CI/CD and modern datastores.