Top Java Developer Jobs

Contract Java/XML developer needed for a 6+ month role in Herndon, VA. Primary responsibilities center on Java and XML development. Preferred skills include PL/SQL, TIBCO BW, UNIX scripting, and data analysis experience. Four positions available.

Design, develop, test, and implement web-based Java applications using Spring and Tomcat. Create design documents, debug and resolve technical issues, work across front-end and back-end systems, follow SDLC best practices, and collaborate with users and technical teams to gather requirements and drive engineering best practices.

Senior backend developer building and performance-tuning RESTful services. Responsibilities include pair programming, TDD, scalable system design, refactoring, on-call rotation, and cross-team technical analysis.

Develop and architect Java-based web applications using Spring MVC. Build REST services, front-end HTML/CSS/JavaScript, and implement automated testing (JUnit, Selenium, Cucumber). Work in Agile teams with CI/CD, JMS messaging, JPA/Hibernate, Maven, WebSphere, Oracle, and Linux. Support accessibility (WCAG) and state government environments as needed.

Develop and implement scalable e-commerce system components per solution architecture. Collaborate with product, operations, and architecture teams, participate in sprint planning, produce documentation, create/modify tests and test harnesses, and assist in triaging production and non-production issues.

Develop and maintain Java/J2EE web applications and integrations using ESB technologies (Fuse, Camel, ServiceMix). Implement JMS messaging, optimize services for large-volume data, work with Oracle databases and PL/SQL, build SOAP/REST services, and perform data analysis and performance tuning using Java frameworks and related tools.

Port a PHP-based inventory tracking system to Java/Spring Boot and migrate a monolithic app to a service-oriented architecture on Cloud Foundry. Design, develop, and deploy large-scale Java projects, implement full-stack features (HTML/CSS/JS), integrate with Oracle, use GitHub, and follow cloud development principles.

Java Developer role in Chicago requiring expertise in Java 8, Spring and Spring Boot, Oracle/PL/SQL, and Test-Driven Development. Build, test, and maintain backend services, collaborate with team members, and ensure code quality through TDD practices.

Develop, maintain, and troubleshoot Java-based enterprise web applications. Investigate defects and enhancement requests, design and implement fixes, collaborate with infrastructure and business owners, and support legacy systems in a cross-functional team environment.

Full‑stack Java developer responsible for front-end and back-end web development: build UIs (HTML/CSS/JavaScript), RESTful web services, integrate UI with services, and work with frameworks like Struts/Spring; Angular 2 experience is a plus. Requires 7+ years of relevant experience.

Design, develop, and implement web-based Java applications and RESTful services using Java and Python. Build services on Hadoop data environments, create design documents, perform coding, testing, debugging, and help scale prototypes to production. Support a recommendation system for sales associates and address security/authentication concerns.

Develop, maintain, and support Java web applications for the NASA SEWP program. Design system components, build customer-facing and internal web apps, document designs, follow design patterns, provide after-hours maintenance, and deliver Level II customer support.

Develop, test, and maintain Java web applications (customer-facing and internal) for the NASA SEWP program. Design system components and interfaces, use design patterns, collaborate with developers and stakeholders, document designs and code, provide after-hours maintenance and Level II customer support, and adhere to agile processes and schedules.

Design, develop, and maintain scalable backend systems and microservices for fintech products. Build REST APIs, support greenfield projects and improve existing systems (card payments, treasury, transactions, crypto liquidity). Use Java and Spring Boot with Postgres, practicing TDD, DDD, and CI/CD to deliver maintainable, high-performance services.

Design, develop, and maintain scalable backend systems and microservices (payments, treasury, transactions, crypto). Build REST APIs, use Java and Postgres, apply Spring Boot, TDD, DDD, and CI/CD to deliver maintainable, high-performance services.

Develop and maintain Java applications, build and deploy web services, and work with front-end frameworks like Angular or React. Requires knowledge in Spring and application design.

Develop and maintain high-performance Android applications, design new features, troubleshoot code, and work with REST/Web Services in a multi-threaded environment.

The Backend Engineer will develop cloud-native applications, engage in full life-cycle development, and work with various technologies including Java/Kotlin and AWS in a remote environment.

Full-stack developer responsible for enhancing a monitoring application: build UX-driven web interfaces, maintain and enhance core subsystems, define requirements, prototype and design, develop code, test, deploy, troubleshoot, and lead small teams.

Design, build, test, implement and support Java/J2EE applications. Create technical specifications, develop code to standards, work in Agile/Waterfall, mentor teams, support QA/UAT, address defects, and ensure production quality.

Design, develop, test and deploy enterprise Java/J2EE web applications using Spring, Dojo, web services and relational databases. Participate in full development lifecycle, estimate work, collaborate with architects, and document solutions.

Develop and maintain Java-based applications (JDK 1.6+), integrate and ETL using Microsoft SSIS, work with C+, Perl, and Apache Tomcat, and support T‑SQL/MS SQL Server and Oracle databases. Banking domain experience preferred. Must be eligible to work on W2; H1B and third-party represented candidates not accepted.

Develop customer-directed applications: gather requirements with technical customers, plan high-level architecture, coordinate with developers, implement code to specifications, and track and resolve software defects. Work involves full-stack technologies including Java/Spring, Node.js, Angular, HTML5 and prototyping for mobile.

Develop middleware, services, and user interfaces for IoT solutions. Build REST APIs and backend systems using Java/J2EE and app servers, implement frontend features with JavaScript frameworks, apply OO design, perform data modeling, and work with relational and NoSQL/Hadoop data stores. Use Maven, Git, and Jenkins.

Design, develop, and test solution integration middleware for IoT solutions. Expand and maintain the data model. Perform both UI and backend development and collaborate closely with the solution architect and IoT stakeholders.