173 senior react developer jobs at 80 companies in Hanover, PA

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
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).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
1mo
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Senior React Developer
Annapolis Junction or Columbia
$200k-$275k/yr HybridFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
12+ YOESenior full-stack developer proficient in React and Java/Spring Boot; experience migrating legacy systems; ability to work with Camunda and Pega workflows; strong REST APIs and Oracle/SQL skills.
React, Java, Spring Boot, Camunda, Pega, Oracle, SQL, REST API
2w
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React Software Developer
Laurel, Maryland, United States
$150k-$200k/yr HybridFull Time
SITEC
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.
React, JavaScript, TypeScript, HTML, CSS, Bootstrap, GitLab, Node.js, Angular, SQL, NoSQL
3w
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Senior Full Stack Java REACT Developer
Laurel or Washington or Baltimore or Montgomery or San Antonio or Virginia or United States
$130k-$160k/yr HybridFull Time
ERP International
ERP International: Provider of healthcare and technology solutions for federal agencies.
8+ YOE8+ years Java/Spring Boot, 5+ years React, microservice and API development, unit testing (JUnit/Mockito/Cucumber), Agile/DevSecOps and CI/CD experience; US citizen able to obtain Secret DoD clearance.
Java, Spring Boot, React, Postgres, Redis, Junit, Mockito, Cucumber, Jira, Confluence, Docker, Kubernetes, DevSecOps, CI/CD, Microsoft Teams, DoD STIG
2d
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Senior React Software Engineer (contract)
Baltimore, Maryland, United States
$65-$75/hr RemoteContract
Mindgrub
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.
React, TypeScript, JavaScript, HTML, CSS, CI/CD, Git
3mo
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Software Engineer(Front-End/React), Senior Advisor - TS/SCI w/poly
Laurel, Maryland, United States
$146k-$234k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
14+ YOE14+ years of SWE experience; Bachelor’s in CS/Math/Engineering; front-end React/JS; TS/SCI clearance with polygraph
React, JavaScript, Redux, TypeScript
3mo
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Senior Software Engineer
Columbia or Minneapolis or Charlotte
$98k-$146k/yr HybridFull Time
Computershare
ComputershareASX: CPU: Global provider of financial administration and shareholder management services.
5+ YOE5+ years web development; React; Java; Spring; SQL; REST/SOAP; UI/UX; Agile; cloud platforms
React, Java, Spring, JSP, Hibernate, SQL, Oracle, SQL Server, REST, SOAP, OpenShift, Azure
3mo
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Software Engineer, Senior
Fort Meade or Laurel
$87k-$198k/yr RemoteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
10+ YOESenior full-stack developer with React/Next.js, Git/Jenkins, TS/SCI with polygraph, and 10+ years of software engineering experience (or relevant degrees with more years).
React, Next.js, Git, Jenkins, GitLab CI/CD, Express, Flask, Spring, FastAPI, Docker, Kubernetes, Swarm, Elasticsearch, Kibana, Grafana, Redis, Kafka, Nginx, AWS, HAProxy, Python
3mo
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Software Engineer, Senior
Fort Meade or Laurel
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
10+ YOESenior full-stack developer with TS/SCI clearance; 16+ years’ experience (or 12+ with a BA; 10+ with an MS); proficiency in React/Next.js, Git, CI/CD, middleware, Docker/Kubernetes, Python; familiar with LLM/RAG and cloud tools.
React, Next.js, Git, Jenkins, GitLab CI/CD, Express, Flask, Spring, FastAPI, Docker, Kubernetes, Python, Elasticsearch, Kibana, Grafana, Redis, Kafka, Nginx, AWS, HAProxy
4w
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Software Engineer IV, REACT
Hanover, Maryland, United States
$137k-$208k/yr OnsiteFull Time
Oceaneering
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.
React.js, JavaScript, Linux, gRPC, MQTT, DDS, WebSockets, Jira, GitHub, Artifactory
2mo
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Senior Software Engineer- Hybrid
Columbia, Maryland, United States
HybridFull Time
Envision Innovative Solutions
Envision Innovative Solutions: Provides technical engineering and mission support to government agencies.
14+ YOE14 years of experience with a bachelor’s degree in computer science (or related field) or 18 years without the degree; experience with Java, JavaScript, TypeScript, CSS, HTML; desired: Material UI, React, Docker, Kubernetes, Rancher, Gitlab Pipelines; security clearance TS/SCI with Full Scope Polygraph.
Java, JavaScript, TypeScript, CSS, HTML, Material UI, React, Docker, Kubernetes, Rancher, Gitlab Pipelines
2mo
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Senior Software Engineer (AI Software & Operations)
United States or Elkridge
RemoteFull Time
Surefire Cyber
Surefire Cyber: Provides rapid incident response and digital forensics services.
Strong software engineering fundamentals; full-stack Python and React; production AWS and Kubernetes; Terraform; GitHub Actions; autonomy in a startup; eager to learn agentic AI workflows.
Python, React, AWS, Kubernetes, Terraform, GitHub Actions, LangChain, Claude Code, AutoGen, CrewAI
3mo
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Senior Software Engineer - Finance
Hummelstown, Pennsylvania, United States
OnsiteFull Time
Flagger Force
Flagger Force: Provides temporary traffic control and work zone safety services.
5+ YOE5-8 years software development with .NET; strong database, API, and security skills; finance domain knowledge.
C#, .NET Framework, .NET Core, MVC, WPF, React, SQL Server, PostgreSQL, APIs, Confluence
1mo
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Software Developer, Senior
Chambersburg, Pennsylvania, United States
$145k/yr HybridFull Time
AGE Solutions
AGE Solutions: Technology consulting and IT services for government agencies.
10+ YOEBachelor's degree, 10+ years software development, 3–5+ years full-stack web experience (React/Vue/Angular and Node.js/Python/Java), DoD Secret clearance, DoD 8140 qualification, cloud and CI/CD expertise.
React, Vue, Angular, Node.js, Python, Java, AWS, Azure, RESTful APIs, CI/CD
1mo
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Senior Software Engineer
Baltimore, Maryland, United States
$125k-$155k/yr OnsiteFull Time
The Baltimore Banner
The Baltimore Banner: Independent nonprofit digital newsroom serving the Baltimore region.
5+ YOE5+ years software development, 3+ years building scalable web apps, strong JavaScript (React/Angular/Vue), Node.js, cloud (AWS preferred), database and caching experience, bachelor’s or equivalent.
JavaScript, React, Node.js, Angular, Vue, AWS, SQL Server, Oracle, MongoDB, MySQL, Redis, Memcached, Varnish, Arc XP, WordPress
1mo
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Senior Software Engineer
Annapolis Junction, Maryland, United States
HybridFull Time
ClearEdge
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.
React, Vue, Angular, Java, JavaScript, Leaflet.js
1w
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Senior Software Engineer
Annapolis Junction, Maryland, United States
$190k-$240k/yr OnsiteFull Time
Belay Technologies
Belay Technologies: Provides specialized technology and engineering services to the DoD.
20+ YOETS/SCI with polygraph required; 20+ years development experience or 24 years without a bachelor's; bachelor's in technical discipline required (or substituted by experience); experience with AWS, Git, Docker/Kubernetes, HAProxy, Nginx, Node.js, Angular, React, NoSQL and relational databases.
Amazon Web Services (AWS), Git, Docker, Kubernetes, HAProxy, Nginx, Node.js, Angular, React, NoSQL databases, Relational databases
3mo
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Senior UI/UX Frontend Developer
Fort Meade or Lackland AFB
$170k-$175k/yr OnsiteFull Time
Titan Technologies
Titan Technologies: Provides IT solutions and services to government agencies.
10+ YOE10+ years frontend or software development; 5+ years frontend with modern JS (React/Angular/Vue); UI/UX focus; Agile; CI/CD; DoD TS clearance preferred.
React, Angular, Vue, Jira, Jenkins, GitLab, HTML5, CSS, CSS3, TypeScript
2mo
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Senior Software Engineer
Jessup, Maryland, United States
$185k-$215k/yr OnsiteFull Time
AeroVironment
AeroVironmentNASDAQ: AVAV: Designs and manufactures unmanned aircraft and tactical missile systems.
14+ YOEBachelor’s degree; 14+ years software engineering/architecture; Java, Python, JavaScript; AWS (EC2, S3); REST APIs; Docker/Kubernetes; OAuth2/OpenID Connect; PKI; Agile; TS/SCI with Poly.
Java, Python, JavaScript, ReactJS, AWS, EC2, S3, Docker, Kubernetes, OAuth2, OpenID Connect, PKI, REST, Jenkins, GitLab CI, GitHub Actions, Maven, TensorFlow, PyTorch, Neo4j, Amazon Neptune, Keycloak
3mo
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Senior Full Stack Web Developer
Rockville, Maryland, United States
OnsiteFull Time
Meso Scale Diagnostics
Meso Scale Diagnostics: Manufacturer of high-sensitivity multiplexed immunoassay systems and reagents.
5+ YOE5+ years of full-stack web development with React/Next.js, Sitecore headless, CMS experience, API integrations, TypeScript, Node.js.
Next.js, Sitecore XM Cloud, React, Node.js, Express.js, PostgreSQL, SQLServer, Redis, TypeScript, Tailwind CSS, Vercel, Netlify, GraphQL, REST
2d
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Senior Software Engineer
Baltimore, Maryland, United States
$140k-$160k/yr RemoteFull Time
Impruvon Health
Impruvon Health: Automated medication management and clinical workflow platform for providers.
5+ YOE5+ years software engineering experience, ownership of features from design to production, deep Ruby on Rails backend expertise, relational DB design, strong communication; React and Flutter experience preferred.
Ruby on Rails, React, Flutter, AWS, ECS, RDS, S3