101 api java developer jobs at 51 companies in Hagerstown, MD
3mo
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Senior API Systems Engineer
Sterling, Virginia, United States
$150k-$254k/yr OnsiteFull Time
10+ YOEU.S. person with Top Secret/SCI polygraph clearance, 10+ years' relevant experience, Bachelor’s or Master’s in a STEM field, Security+ CE (DoDD 8140), 5+ years API gateway experience, proficiency with Java/Python/C#, cloud (AWS/Azure/GCP), Docker/Kubernetes.
Java, Python, C#, AWS, Azure, Google Cloud Platform, Docker, Kubernetes, Istio, Linkerd, MuleSoft, Apigee, Broadcom API, ServiceNow, Windows, Linux
2mo
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Java Web Developer (Angular)
Sterling, Virginia, United States
$130k-$150k/yr OnsiteFull Time
4+ YOEBachelor's in CS or related, 4+ years software development with 4+ years Java, 2+ years MuleSoft, web apps/APIs, relational DB design, front-end with HTML/CSS/Bootstrap/Angular/jQuery/TypeScript, familiarity with AWS (ECS, RDS, MKS) and Entity Framework; US Public Trust clearable (US citizen/PR or authorized with 3+ years US residence).
Java, MuleSoft, HTML, CSS, Bootstrap, Angular, jQuery, TypeScript, AWS, AWS ECS, AWS RDS, AWS MKS, Entity Framework, PostgreSQL, Oracle, JSON, XML, XSLT, Docker, Jenkins
1d
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Java Software Engineer - Developer (Experienced and Senior)
Herndon or Seal Beach or Mesa or El Segundo or Colorado Springs
$127k-$232k/yr OnsiteFull Time
3+ YOEBachelor's degree, active U.S. Top Secret clearance, 3+ years with Java and software development, cloud experience, Windows/Linux, Agile, and configuration management tools; U.S. Person required.
Java, ReactJS, Python, CI/CD, Windows, Linux, C++, Angular, HTML, CSS, AWS, IDE, Maven, Git, GitLab, Atlassian tools, Jira, Confluence, Bitbucket, JUnit, Mockito, Spring Boot, NoSQL, MongoDB, REST API, Kubernetes, Helm
1d
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Java Software Engineer - Developer (Experienced and Senior)
Herndon or Seal Beach or Mesa or El Segundo or Colorado Springs
$127k-$232k/yr OnsiteFull Time
3+ YOEBachelor's degree, active U.S. Top Secret clearance, U.S. Person status, 3+ years Java and software development experience, cloud experience, Windows/Linux proficiency, and Agile methodology experience.
Java, C++, ReactJS, Python, CI/CD, Windows, Linux, Angular, React.js, HTML, CSS, AWS, Windows-based IDEs, Linux-based IDEs, Maven, Git, GitLab, Agile, Jira, Confluence, BitBucket, JUnit, Mockito, Spring Boot, NoSQL Databases, MongoDB, REST API, Kubernetes, Helm, CodeVue
2w
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Java Full Stack Developer
McLean or Rockville or Tysons Corner
$74k-$124k/yr OnsiteFull Time
2+ YOEBachelor's degree or equivalent; 2+ years of full-stack development with Java, Spring Boot, ReactJS, REST APIs, databases, AWS, CI/CD, and Agile/Scrum. Must obtain public trust.
Java, Spring Framework, Spring Boot, Hibernate, Maven, REST APIs, JSON, Microservices Architecture, ReactJS, React Hooks, Redux, React Router, JavaScript, DOM, Oracle, PostgreSQL, MySQL, SQL Server, AWS, Git, GitHub, GitLab, Bitbucket, Azure DevOps, Jenkins, Docker, Kubernetes, Terraform, GitHub Copilot, Amazon Q Developer, Cursor, Claude, Gemini, LLMs, RAG architectures
2mo
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SME Systems Engineer- API Gateway & Cloud Architecture
Sterling, Virginia, United States
$180k-$230k/yr OnsiteFull Time
16+ YOEBachelor's in STEM, 16+ years' experience, DoD 8140/Security+ CE, 5+ years API Gateway experience (Broadcom preferred), expertise with Windows and cloud-hosted COTS, Java/Python/C#, AWS/Azure/GCP, Docker, Kubernetes, Agile, cloud architecture, troubleshooting, and system testing. TS/SCI w/ Poly required; U.S. citizenship required.
API Gateway, Broadcom API Gateway, MuleSoft, Apigee, Istio, Linkerd, ServiceNow, Docker, Kubernetes, Java, Python, C#, Windows, AWS, Microsoft Azure, Google Cloud, Message queues, Streaming platforms, ETL, COTS, MBSE
2mo
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GenAI Developer
Ashburn, Virginia, United States
HybridFull Time
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
3mo
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Software Developer
Herndon or Chantilly
$185k-$240k/yr OnsiteFull Time
6+ YOEActive TS/SCI with Full-Scope Polygraph, 6+ years software development, experience with Java/Python/C++/JavaScript, APIs, Git, Agile; cloud, DevOps, containerization preferred.
Java, Python, C++, JavaScript, AWS, Azure, Docker, Kubernetes, Git, REST APIs, CI/CD Tools, DevOps
1mo
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SME Systems Engineer - API (TS/SCI w/ CI Poly required)
Sterling, Virginia, United States
OnsiteFull Time
10+ YOEActive TS/SCI with CI poly, Security+ CE or higher, 10+ years relevant experience, STEM degree, API gateway expertise (5+ years), Java/Python/C# proficiency, cloud and containerization experience.
API gateway, Broadcom API, AWS, Azure, Google Cloud Platform, Docker, Kubernetes, Java, Python, C#, MuleSoft, Apigee, Istio, Linkerd, ServiceNow
1mo
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Senior Application Developer
Denver or Springfield or Sterling or St. Louis
$75k-$158k/yr OnsiteFull Time
8+ YOEBachelor's in CS or related,8+ years software development experience,expert Java and/or Python,REST APIs,databases,CI/CD,GIT,TS/SCI clearance and polygraph willingness.
Java, Python, ArcGIS, GeoServer, OpenLayers, Cesium, Kubernetes, AWS/C2S, Git, CI/CD
2mo
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Agile Developer
Herndon or United States
RemoteFull Time
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.
Java, C#, JavaScript, Python, VistA, MUMPS, CPRS, AWS, Azure, Google Cloud, Docker, Kubernetes, React, Angular, Vue.js, HL7, FHIR, Git, CI/CD, DevSecOps
1d
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Lead Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
10+ YOEBachelor’s degree, 10–15 years of software development experience, expertise in Java, Spring Boot, Angular, APIs, microservices, SQL, AI-assisted development, and ability to obtain Public Trust clearance.
Java, JEE, Spring, Spring Boot, JavaScript, TypeScript, Angular, Bootstrap, jQuery, DataTables, JPA, Hibernate ORM, SQL, United States Web Design System (USWDS), Storybook, GitHub Copilot, GitHub Copilot Chat, SAFe Agile
21h
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Lead Full Stack Developer
Herndon, Virginia, United States
OnsiteFull Time
10+ YOEBachelor's degree and typically 10–15 years of software development experience. Requires Java, Spring Boot, Angular, APIs, microservices, SQL, AI-assisted development, and ability to obtain Public Trust clearance.
Java, JEE, Spring, Spring Boot, JavaScript, TypeScript, Angular, Bootstrap, jQuery, DataTables, JPA, Hibernate ORM, SQL, U.S. Web Design System, USWDS, Storybook, GitHub Copilot, GitHub Copilot Chat
2mo
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GenAI Developer
Ashburn, Virginia, United States
$52-$94/hr OnsiteFull Time
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
1w
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Software Engineer
Rockville, Maryland, United States
$90k-$110k/yr OnsiteFull Time
Enterprise software development experience with Java, APIs, integrations, relational databases, SQL, testing, source control, release processes, troubleshooting, and software lifecycle practices; federal background investigation required.
Java, Java 21, Jakarta EE, Spring Boot, Hibernate, Oracle WebLogic, Oracle, SQL, REST APIs, Angular, AWS, GitLab, JIRA, ServiceNow
5d
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Software Engineer
Chantilly or Aurora or Herndon
$87k-$198k/yr OnsiteFull Time
3+ YOERequires 3+ years of Java experience, backend development with microservices, Docker, Kubernetes, Spring, REST APIs, AWS, Linux, and TS/SCI clearance; requires high school diploma or GED.
Java, Docker, Kubernetes, Spring Framework, Spring Boot, REST, AWS, Bitbucket, Jenkins, Linux, Command Line Interface, Open Systems Architecture, DevOps, CI/CD, Ansible, Git, Agile, Scrum, MongoDB, Apache NiFi, Kafka, Security+ CE, SSCP, CCNA-Security, GSEC
2mo
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IT Software Application Developer II (79635)
Sterling, Virginia, United States
OnsiteFull Time
10+ YOEBachelor's in CS or related (or equiv. experience); 10+ years full-stack web development with Java and .NET; experience with Spring Boot, ASP.NET MVC/Web API, Azure, Angular, HL7/FHIR, SQL databases, CI/CD, and healthcare compliance (HIPAA).
Java, .NET, ASP.NET MVC, Web API, Spring Boot, Azure, Angular, FHIR, HL7, EHR, SQL Server, PostgreSQL, SVN, Git, CI/CD, Jenkins, GitHub, Azure DevOps, Power BI, Pentaho, Microservices
2w
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Principal Software Engineer
Colorado Springs or Dayton or Herndon
$175k-$200k/yr HybridFull Time
Software development experience with Unix/Linux, microservices, messaging, REST APIs, Agile/DevOps, Python, Java, JavaScript/React, and Cucumber; ability to obtain and maintain Top Secret clearance.
Unix, Linux, RabbitMQ, REST APIs, Agile, DevOps, Python, Java, JavaScript, React, Cucumber, CI/CD, GitHub, GitLab, Jira, Sphinx, NASA GMAT
3w
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Senior Developer
Herndon, Virginia, United States
OnsiteFull Time
10+ YOEActive US security clearance (TS/SCI with CI polygraph), 10+ years experience (or 15+ with BS), proficiency in Java/Python/C#, RESTful APIs, containerization, databases, Agile/DevSecOps.
Java, Python, C#, RESTful APIs, RDF, OWL, SPARQL, Docker, Kubernetes, OpenShift, CI/CD, Git
1w
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Principal Engineer
United States or Herndon
$160k-$190k/yr OnsiteFull Time
8+ YOERequires 8+ years of software engineering experience, large-scale distributed systems expertise, backend development with Java or Go, APIs, cloud platforms, data stores, caching, CI/CD, and strong communication skills.
Java, Go, REST, gRPC, CI/CD, DNS, Motivosity, LinkedIn Learning