Top Senior Java Developer Jobs in Washington, DC

The Sr. Java Developer will migrate applications to a new DevOps infrastructure, improve code quality, and mentor junior resources while developing software according to best practices.

The Java Developer will work on full lifecycle development of a multi-tiered JEE application, collaborating with analysts and clients to refine requirements and maintain documentation.

The Sr. Java Developer will manage full life-cycle activities for Claims Enhancement projects, including design, development, testing, and project milestone achievement.

The role involves full lifecycle development of JEE applications using agile methodologies. Responsibilities include collaborating with analysts and clients, writing system documentation, and developing software using various technologies.

The role involves developing, implementing, testing, and maintaining application systems, providing software development expertise and collaborating with various departments.

Seeking a Java developer with experience in Hibernate, JavaScript, PostGreSQL, and security development. Requires 5+ years of experience in web application development and software engineering.

The Java Developer will modify existing software, develop unit and integration tests, work independently, and collaborate with a Scrum team in an Agile environment to deliver quality applications.

Develop and manage APIs using IBM API Management tools, collaborate with team, conduct testing and code review, ensure security of applications.

The Java FullStack Developer role involves end-to-end development using JAVA, AngularJS, and NodeJS, requiring excellent communication skills and strong agile methodologies.

The Senior Java Developer will develop UI and Web Services for the Member 360 Application, collaborate with teams, perform code reviews, and ensure milestone achievement for multiple projects.

The Sr Java Developer will create mainframe-based applications in the healthcare insurance industry, primarily using JAVA on AIX. They will ensure high-quality standards through testing and Agile practices.

Seeking a Sr. Java Developer for the DevOps platform team to support Continuous Delivery practices, enhance delivery agility, and meet delivery milestones.

Develop software for eService and Digital eXperience programs, including design, development, testing, and mentoring junior developers. Requires strong Java/JEE expertise.

Develop secure, scalable Java applications within an agile engineering team. Provide technical guidance, review and debug production code, influence application design and technical processes, and serve as a subject matter expert. Lead adoption of AI-assisted development tools with validation for security, performance, and correctness. Apply SDLC, CI/CD, resiliency, security, and Kubernetes expertise while supporting containerized applications and collaborating with technical teams, contractors, and vendors.

Design, develop, test, and maintain scalable Java applications for government and enterprise systems. Build and integrate APIs, support CI/CD deployments, ensure security/compliance, contribute to architecture and documentation, troubleshoot production issues, and collaborate with cross-functional teams.

Design, develop, and maintain high-performance, secure Java backend services and APIs. Ensure reliability, scalability, and cost-efficiency across microservices, databases, messaging systems, and capacity planning. Troubleshoot, profile, benchmark, and optimize systems (including ML applications) and collaborate with Kazakhstan stakeholders.

Design and implement backend APIs with Java/Spring Boot and responsive UIs with React/TypeScript. Build normalized PostgreSQL schemas, support data migration, manage CI/CD and deployments, ensure accessibility and security compliance, and participate in all SDLC phases within an Agile team.

Investigate and resolve data-quality issues in large-scale distributed systems. Design Java-based repair pipelines and idempotent correction jobs for high-volume datasets, debug existing code, use AWS services for queue-driven and batch workflows, optimize performance and concurrency, and communicate technical findings and risks to stakeholders.

Lead design, development, testing, integration and deployment of Java/J2EE applications. Produce technical artifacts, mentor team members, enforce standards, estimate work, and drive release and implementation activities to ensure high-quality delivery.

Designs, implements, and runs Java Spring Boot microservices and REST APIs; leads design, CI/CD, TDD, performance tuning, security, and cross-product collaboration. Coaches teams and owns product KPIs and production support.

Senior full-stack developer responsible for designing and implementing Java/Spring back-end APIs, React/TypeScript front-ends, and normalized PostgreSQL schemas. Duties include data migration, CI/CD and deployments, ensuring security and 508 accessibility, supporting lifecycle phases, and using AWS, Keycloak, Kubernetes, Docker, and Atlassian tools. Requires strong documentation, Agile experience, and 7+ years of experience.

Design, develop, and maintain web-based UI and REST middleware for federal health IT systems. Participate in Agile/SAFe ceremonies, write design documents, implement features, resolve bugs, and support CI/CD pipelines while collaborating with product, QA, and stakeholders.

Develop, test, and maintain a complex distributed processing application using Python and Java. Collaborate with product owners, data coaches, analysts, DBAs, and Agile teams to meet backend/frontend requirements. Work with distributed workloads (Spark/Hadoop), SQL/Snowflake, AWS, shell scripting, and job scheduling/process automation. Support delivery under Agile/SAFe practices and ensure alignment with program standards.

Lead backend architecture and implementation for Java Spring microservices, validate and own AI-assisted code, mentor engineers, collaborate with product to deliver features, and drive technical excellence and scalable, test-covered systems.

Senior Java Developer responsible for full SDLC: design, develop, test and deploy Java/J2EE web applications using Spring/Hibernate, messaging (MQ), RDBMS (Oracle/SQL Server/MySQL), and front-end frameworks (Angular/Bootstrap). Collaborate in Agile teams, perform code-level implementation, unit testing, and production support.