Top Java Developer Jobs in Washington, DC

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

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.

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

The Senior Java Developer will design, develop, and implement custom software solutions in Agile teams, mentor juniors, and ensure product quality.

Translate functional requirements into technical designs, develop Java-based applications (Spring/SpringBoot), write unit tests (JUnit), build RESTful APIs, collaborate with QA on test scenarios, maintain system documentation, and support deployments and Tomcat configuration.

Senior Java engineer delivering AI-augmented production features and modernizations across a Java/Python/AWS stack. Pair with engineers to embed agentic practices, own systems end-to-end, participate in AI-augmented reviews, and judge agent use versus human intervention.

Senior Java engineer delivering AI-augmented production features and modernizations across a Java/Python/AWS stack. Own systems end-to-end, pair with engineers to transfer agentic practices, perform AI-augmented code reviews, and judge when to trust or intervene with agent outputs.

Build and maintain full-stack Java applications for mortgage and lending workflows. Develop RESTful APIs and microservices, responsive frontends, tests, and CI/CD pipelines. Collaborate with product, compliance, and business teams to ensure scalable, secure, and compliant loan origination, servicing, and portfolio management systems.

Architect, implement, and optimize live and on-demand streaming pipelines in Wowza. Design scalable transcoding and packaging workflows, debug performance issues, integrate native code via JNI, and serve as a streaming subject-matter expert across cross-functional projects.

Design, build, and maintain efficient, reusable Java backend systems; translate business requirements into applications; optimize performance and stability; review and test code for quality and security; identify and fix bottlenecks and bugs; maintain code quality and system responsiveness.

Optimize and scale blockchain node performance, design and implement core system plugins, collaborate with cross-functional teams, conduct performance testing and debugging, and stay current on blockchain and distributed systems technologies to maintain reliable infrastructure.

Develop and maintain Java backend services for enterprise blockchain applications, integrate APIs with React/Vue frontends, design scalable blockchain solutions, troubleshoot complex backend issues, and collaborate with the team to apply best practices and stay current with blockchain trends.

As a Principal Software Data Engineer, you'll lead the design, development, and optimization of large-scale data platforms and pipelines, ensuring data governance and driving innovation in a collaborative environment.

Join an agile team to design, develop, test, and deploy enterprise web applications. Build high-quality Java/J2EE solutions, maintain system docs, implement RESTful services, improve SDLC practices (TDD, CI/CD, static analysis), and collaborate with architects, developers, and stakeholders. Perl experience required.

Design, build, and maintain scalable backend services and APIs using Java and Spring Boot. Implement event-driven architectures with Kafka, manage PostgreSQL/Redis data, ensure performance and reliability, troubleshoot production issues, participate in code reviews, and collaborate across teams for deployments and monitoring.

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.

The Senior Software Engineer will develop and maintain big data applications, focusing on distributed computing, automation, and collaboration with teams to enhance healthcare solutions.

Design, develop, test, and maintain enterprise-grade Java microservices using Spring Boot and PostgreSQL. Collaborate with product teams in Agile/Scrum, produce APIs and documentation, troubleshoot build/deploy issues, and support modernization of legacy IRS systems in a cloud environment.

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.

Design, develop, and maintain scalable Java/Micronaut enterprise frameworks and cloud-native microservices on Azure. Build and deploy services to AKS, create CI/CD pipelines with Azure DevOps, implement batch/asynchronous workflows, integrate messaging systems, optimize databases, and ensure security, observability, and resilience.

As a Senior Developer, you will modernize COBOL systems to Java, enhancing functionality and performance while collaborating with stakeholders and ensuring coding standards are met.

As a Senior Software Engineer, you will build cloud solutions, define migration strategies, mentor junior engineers, and ensure architectural integrity while collaborating with peers.

Lead an agile engineering team to design, build, and operate scalable Java-based, cloud-native, event-driven systems. Mentor developers, perform design/code reviews, troubleshoot production issues, and drive AI-assisted development and engineering best practices.

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.