32 full stack api developer jobs at 25 companies in Hagerstown, MD

2w
Save
Mark Applied
Hide
Full-Stack Developer
Leesburg, Virginia, United States
OnsiteFull Time
Cornerstone Chapel
Cornerstone Chapel: Providing Christian worship services and community outreach programs.
3+ YOEBachelor's degree in CS/IT, 3–5 years full-stack development experience, proficiency in C#, .NET, Microsoft SQL Server, HTML5/CSS3/JavaScript, Git; experience with Rock RMS, REST APIs and on-premise hosting preferred.
Rock RMS, C#, .NET, Microsoft SQL Server, HTML5, CSS3, JavaScript, Git, REST APIs, Proxmox, CEPH
2w
Save
Mark Applied
Hide
Full Stack Developer
Florida or Herndon or Texas or Virtual
RemoteFull Time
Constellis
Constellis: Provides private security, tactical training, and risk management services.
Experience building full-stack systems with Python/FastAPI, JavaScript/TypeScript and React, REST APIs, PostgreSQL, Docker, Git; bachelor\u0002s degree in a technical field required.
FastAPI, Kafka, PostgreSQL, Docker, React, TypeScript, WebSockets, Mapbox, REST APIs, MongoDB, OpenSearch/Elastic, js, Tailwind CSS, shadcn/ui, OAuth, JWT, Keycloak, Auth0, Git, GitHub, Jira, Confluence, GitHub Actions, ArgoCD, Kubernetes
2d
Save
Mark Applied
Hide
Full Stack Engineer
Herndon, Virginia, United States
HybridFull Time
Unissant
Unissant: Delivers data analytics and cybersecurity services to government agencies.
5+ YOE5+ years across data engineering and full-stack development; strong Python and SQL; ETL/ELT, API and web app experience; bachelor's degree required; ability to obtain Secret clearance; familiarity with CMMC/NIST practices.
Python, SQL, ETL/ELT, CI/CD, CMMC, NIST 800-171
2mo
Save
Mark Applied
Hide
Full Stack Developer
Herndon or Chantilly
$190k-$250k/yr OnsiteFull Time
Insight Xcite
Insight Xcite: A mission-focused consulting firm that supports critical government programs through engineering, technology, cybersecurity, and analytics.
6+ YOEActive TS/SCI with Full-Scope Polygraph, 6+ years software development, frontend (React/Angular/JS/TS/HTML/CSS) and backend (Java/Python/Node.js) experience, API development, Git, and Agile.
React, Angular, JavaScript, TypeScript, HTML, CSS, Java, Python, Node.js, Git, AWS, Azure, Docker, Kubernetes, CI/CD, DevOps
2mo
Save
Mark Applied
Hide
Full Stack Developer
Ashburn, Virginia, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: AI-powered decision intelligence for complex mission environments.
5+ YOEBachelor's in CS or related field with five+ years experience; US citizen with CBP Public Trust clearance; Java/JEE and .NET stack; AWS and Agile; teamwork across stakeholders.
Java, JavaScript, Vue.js, C#, NET Core, Web API, Visual Studio Code, Gitlab, xUnit, SonarQube, PostgreSQL, AWS, HARNESS
1mo
Save
Mark Applied
Hide
Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
Echelon Services
Echelon Services: Provides IT and security services to federal government agencies.
Requires a Bachelor's or Master's in CS/Software Engineering, ability to pass a Tier 1 DOD background investigation, experience with .NET Core, ASP.NET Core (C#), Angular/TypeScript, REST APIs, Go, Azure Government, containerized microservices, and CI/CD/DevSecOps practices.
.NET Core, ASP.NET Core, C#, Angular, TypeScript, REST APIs, Go (Golang), Azure Government, CI/CD
1mo
Save
Mark Applied
Hide
Junior Full Stack Developer
Sterling, Virginia, United States
OnsiteFull Time
ASSYST
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.
HTML5, CSS3, JavaScript (ES6+), React, Angular, Vue.js, Node.js, .NET, Java, Java Spring Boot, Python, REST APIs, SQL Server, MySQL, PostgreSQL, Git
3w
Save
Mark Applied
Hide
Senior Level Full-Stack Developer
Rockville, Maryland, United States
$130k-$160k/yr OnsiteFull Time
Axle Informatics
Axle Informatics: Provides bioscience and IT solutions for biomedical research.
5+ YOEBachelor's in CS/IT, 5+ years Node.js and Angular experience, identity management and application security knowledge, REST API and database experience (MongoDB/MySQL/PostgreSQL), Git, and experience with AI-assisted development tools.
Node.js, Angular, TypeScript, React, React Native, GitHub Copilot, Cursor, MongoDB, MySQL, PostgreSQL, Git, Docker, Kubernetes, AWS, Azure
3mo
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
Senior Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services for government agencies.
8+ YOEBachelor's degree,8+ years experience,US citizenship,ability to obtain/maintain Public Trust (High) clearance; strong Python,AWS,Amazon Connect,API,JSON,serverless,DevOps,testing,and mentoring skills.
Python, AWS Lambda, Amazon Connect, JSON, API Gateway, EventBridge, SQS, SNS, Step Functions, DynamoDB, S3, CloudWatch, IAM, Secrets Manager, GraphQL, SQL
3mo
Save
Mark Applied
Hide
Full Stack Web Developer
Denver or Sarasota or Sterling
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEBS in CS or related field; 5+ years web development; React.js; Flask/Express; Python/TypeScript/JavaScript; PostgreSQL; REST APIs; Git; TS/SCI clearance (active)
React.js, Flask, Express.js, Python, HTML5, CSS3, TypeScript, JavaScript, PostgreSQL, Git, Docker
1mo
Save
Mark Applied
Hide
Senior Full-Stack Developer (Java + Angular)
Sterling, Virginia, United States
$125k-$145k/yr HybridFull Time
Laansu
Laansu: Provides IT services and software development for federal agencies.
5+ YOEBachelor's degree in CS or related field, 5+ years software development with 5+ years Java and web/API experience, relational DB design, frontend (Angular/TypeScript/HTML/CSS), AWS, Docker, CI/CD, Git, microservices.
Java, Angular, HTML, CSS, Bootstrap, jQuery, TypeScript, AWS, AWS ECS, AWS RDS, AWS MKS, AWS KMS, Entity Framework, Git, Microservices, Docker, Jenkins, Oracle, JSON, XML, XSLT, Hibernate, JPA
1w
Save
Mark Applied
Hide
Full Stack Engineer - Polygraph Required
Herndon, Virginia, United States
$114k-$248k/yr OnsiteFull Time
BTI360
BTI360: Develops software and AI solutions for national security customers.
Active TS/SCI with Polygraph, experience building production frontend (React/Next.js) and backend (Python frameworks), cloud experience (AWS preferred), CI/CD and Git proficiency, RESTful APIs and databases, strong communication skills, able to commute to Herndon area.
React, Next.js, JavaScript, TypeScript, HTML, CSS, Python, FastAPI, Flask, Django, Node.js, Express, NestJS, SQL, NoSQL, Git, GitLab CI, AWS CodeBuild, Jenkins, GitHub Actions, Docker, Kubernetes, SNS, SQS, Kinesis, Step Functions, EventBridge, Vitest, Playwright, Pytest, Terraform, Storybook, Tailwind CSS, shadcn/ui
1mo
Save
Mark Applied
Hide
Senior Software Full Stack Engineer
Leesburg, Virginia, United States
$112k-$158k/yr OnsiteFull Time
AeroVironment
AeroVironmentNASDAQ: AVAV: Designs and manufactures unmanned aircraft and tactical missile systems.
8+ YOEU.S. citizenship required; Bachelor's in computer science; 8+ years software development; front-end with React; back-end with Java, C++ and Python; extensive Linux, CI/CD, REST API and embedded integration experience.
React, Java, C++, Python, Linux, Maptiler, Mapbox, mbtiles, Deck.gl, RESTful API, CI/CD
1mo
Save
Mark Applied
Hide
Full Stack Software Engineer - R134
Herndon, Virginia, United States
OnsiteFull Time
Expedition Technology
Expedition Technology: Delivering advanced machine learning and signal processing for defense.
5+ YOEU.S. citizen with active TS/SCI clearance, 5+ years professional software engineering experience across front-end and back-end, experience with AWS, Python, modern JavaScript frameworks (TypeScript preferred), Docker, Kubernetes, RESTful APIs, relational databases, Git, and Linux.
Python, React, Angular, Vue, TypeScript, RESTful APIs, Docker, Kubernetes, AWS, TailwindCSS, React Query, Vite, MUI, GraphQL, Lambda, RDS, DynamoDB, S3, IAM, EC2, SQS, Git, Linux
4w
Save
Mark Applied
Hide
Full Stack Software Engineer (TS/SCI)
Herndon or Colorado Springs or Melbourne
OnsiteFull Time
Maxar Intelligence
Maxar Intelligence: Providing satellite imagery and geospatial intelligence for global security.
3+ YOEU.S. citizen with active TS/SCI clearance, Bachelor's in software engineering or STEM, 3+ years experience, proficiency with Java/C++/Python, frontend (Vue.js/React), backend (Kafka, APIs), containerized microservices, CI-CD, Git, EM/monitoring tools.
Java, C++, Python, Vue.js, React, Kafka, Git, ELK, Grafana, Prometheus, Bash, Linux, Subversion, IDE, CI-CD Pipelines
3w
Save
Mark Applied
Hide
Software Engineer - Full Stack (TS/SCI Clearance Required)
Gaithersburg, Maryland, United States
OnsiteFull Time
North Point Technology
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI with polygraph, bachelor's in CS or related, strong full-stack experience with Python/Java/JavaScript, REST APIs, SQL, Django or modern JS frameworks, Git/GitLab, Windows/Linux, and Agile/CI/CD practices.
Python, Java, SQL, Django, JavaScript, Angular, React, Windows, Linux, Git, GitLab, AWS, IBM Cloud, Google Cloud, Azure, Oracle Cloud, S3, SQS, SNS, EC2, CloudFormation, RDS, CI/CD
1mo
Save
Mark Applied
Hide
GenAI Developer
Ashburn, Virginia, United States
HybridFull Time
Xenith Solutions
Xenith Solutions: Provides IT solutions and consulting for federal government agencies.
7+ YOEU.S. citizen able to pass CBP background check; BA/BS preferred (experience considered); 7+ years full-stack development; React/Angular, SQL/NoSQL, Python/Java/JavaScript/TypeScript; GenAI concepts and APIs; AWS and Google cloud experience; DevSecOps knowledge.
React, Angular, SQL, NoSQL, Large Language Models (LLMs), transformers, Python, Java, JavaScript, TypeScript, AWS, Google Vertex AI, AWS Bedrock, GitLab, APIs, RESTful services, DevSecOps, CDNs
1mo
Save
Mark Applied
Hide
Senior Python Developer
Herndon, Virginia, United States
OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
10+ YOE10+ years Python development, SQL, front-end/full stack, Git, Docker/Kubernetes, RESTful API development, Linux/Unix; Bachelor's in CS +10 years or HS +14 years; active TS/SCI with polygraph required.
Python, SQL, Git, Docker, Kubernetes, RESTful API, Linux/Unix, Node.js, Jenkins, GitLab CI, AWS, Azure, JIRA
1mo
Save
Mark Applied
Hide
GenAI Developer
Ashburn, Virginia, United States
$52-$94/hr OnsiteFull Time
Sentrillion
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.
React, Angular, SQL, NoSQL, Python, Java, JavaScript, TypeScript, AWS, Google, Google Vertex AI, AWS Bedrock, GitLab, RESTful services, DevSecOps