Top Java Developer Jobs in Chicago, IL

Lead architecture and implementation of device provisioning and lifecycle management services on GCP. Own APIs, scale Postgres/AlloyDB databases, integrate AI/LLM workflows (Anthropic Claude) for automation, mentor engineers, improve pipelines and tooling, and ensure high-availability, fault-tolerant designs.

Design, develop, test, deploy, and maintain enterprise Java applications for USPS. Build RESTful APIs with Spring, translate requirements into architecture, implement CI/CD/DevSecOps, integrate relational databases, troubleshoot complex issues, and collaborate with cross-functional Agile teams to deliver high-quality software solutions.

Design, develop, test, and deploy full-stack Java applications (backend Java/Spring Boot, frontend React/Angular, PostgreSQL). Lead architecture decisions, mentor developers, perform code reviews, troubleshoot issues, implement testing strategies (JUnit, Cypress, Playwright), collaborate with product/QA/DevOps in Agile, and support VA mission-critical initiatives while meeting security and clearance requirements.

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 and support enterprise J2EE applications using Java, Oracle DB and MVC frameworks on JBoss. Lead SVN/SCM migrations across Dev/QA/UAT, write SQL, and rapidly learn product configurability to implement solutions.

Lead design, development, testing, and maintenance of enterprise Java microservices and front-end applications. Build APIs, CI/CD pipelines, and containerized deployments; troubleshoot production, ensure security/compliance, mentor junior developers, and collaborate within Agile teams.

Develop Java applications with strong database development skills. Work on algorithms and distributed computing. Experience with NoSQL databases (Mongo, Cassandra) prioritized. Contract role (6+ months) based in Schaumburg, IL at $45/hr.

Develop and maintain Java applications using Spring, JBoss, and RESTful services. Work with Oracle databases, Eclipse IDE, follow SDLC methodologies, and apply design patterns. Strong communication skills required. 6+ month contract; local candidates needed for phone and face-to-face interviews.

Develop enterprise J2EE applications using Core Java and Spring. Build RESTful and SOAP APIs, write PL/SQL for Oracle, create unit tests, and work with ElasticSearch (secondary).

Design, develop, and support integration solutions using Apache Camel and ESB platforms. Implement RESTful APIs, message-queuing (IBM MQ), fault/compensation handling, transactional boundaries, container deployments, CI builds, and production performance support. Participate in design/code reviews and translate functional requirements into system specifications.

Develop and implement integration solutions using Core Java/Spring and Apache Camel. Design ESB integrations (ServiceMix/Fuse), implement enterprise integration/SOA patterns, IBM MQ messaging, RESTful APIs, fault/compensation handling and transactional boundaries. Work with container architectures (Tomcat, Fuse, EAP, WebSphere), Gradle/TeamCity CI, TDD, and break complex designs into phased implementations.

Develop and maintain Java-based J2EE applications and AngularJS single-page front ends. Build RESTful services, use Spring and Hibernate, deploy on WebLogic, follow SDLC, review designs/architecture, and collaborate in a global delivery team.

Design and implement integration solutions using Core Java and Spring with Apache Camel and ESB platforms. Develop RESTful APIs, handle messaging via IBM MQ, manage fault/compensation handling and transactional boundaries, use container architectures (Tomcat, Fuse, EAP, WebSphere), apply Gradle and TeamCity CI, follow TDD, and phase complex designs into implementable stages.

Develop and implement integration solutions using Core Java and Apache Camel. Design ESB integrations (ServiceMix/JBoss Fuse), message queuing with IBM MQ, RESTful APIs, fault/compensation handling, and transactional boundaries. Work with container environments (Tomcat, EAP, WebSphere), Gradle and TeamCity CI, TDD, and production support/performance engineering. Translate functional requirements into system requirements and follow SDLC best practices.

Design and implement enterprise integrations using Core Java/Spring and Apache Camel. Build ESB-based solutions (ServiceMix/Fuse), implement messaging with IBM MQ, develop RESTful APIs, handle fault/compensation/transactional boundaries, use container platforms (Tomcat, EAP, WebSphere), apply TDD, Gradle builds and TeamCity CI, and decompose complex designs into phased implementations.

Develop and implement integration solutions using Apache Camel and Java/Spring. Build RESTful APIs, work with ESB platforms (ServiceMix/Fuse), IBM MQ, container architectures, and CI with Gradle/TeamCity. Apply enterprise integration and SOA patterns, fault/compensation handling, transactional boundaries, TDD, and conduct code/design reviews while translating functional and non-functional requirements into phased designs.

Develop and maintain Core Java/Spring applications using TDD; re-engineer applications to add unit and functional tests; write Unix/Python/Perl scripts; work with batch schedulers and Oracle (queries/stored procedures); perform design and architecture reviews, peer code reviews, and support multiple applications in a global delivery, investment-banking environment.

Develop and implement integration solutions using Apache Camel and Java/Spring; design RESTful APIs, handle messaging (IBM MQ), fault/transaction boundaries, and support CI builds with Gradle/TeamCity.

Design and implement integration solutions using Apache Camel and ESB platforms, build RESTful APIs, implement fault/compensation handling and transactional boundaries, integrate with IBM MQ and containerized runtimes, write tests (TDD), perform code and design reviews, and translate functional/non-functional requirements into phased designs.

Design and implement enterprise integrations using Apache Camel and ESB platforms, develop REST APIs, work with IBM MQ, containers and CI/CD, perform TDD, production support, performance engineering, translate requirements to system designs, and conduct peer code and design reviews.

Develop and maintain Core Java/Spring applications using TDD. Write scripts (Unix/Python/Perl), create DB queries and stored procedures in Oracle, support multiple applications, conduct code/design reviews, and participate in SDLC and project lifecycle activities. Work in global delivery and investment banking domain.

Design and implement integration solutions using Core Java, Spring and Apache Camel. Build REST APIs, work with IBM MQ and ESB platforms, handle fault/compensation/transactional boundaries, perform TDD, CI builds, production support and performance tuning. Collaborate with distributed teams, conduct code/design reviews, and translate requirements into system designs.

Full‑stack Java developer responsible for backend Java/JEE and frontend JavaScript (AngularJS or ReactJS). Work in Agile/XP with TDD, using Spring, MongoDB, Jenkins, Docker and Node.js. Collaborate across stakeholders, meet delivery velocity, and apply insurance-domain knowledge.

Develop and test portal applications using AngularJS/ReactJS and Java; participate across the software development lifecycle; implement front-end features with HTML5, jQuery, and JavaScript; collaborate with diverse stakeholders and work within a global delivery environment while applying analytical skills.

Build and deliver backend enterprise web applications for Citi's Integrated Digital Assets Platform using Java/Spring and web3 technologies. Collaborate with distributed teams, follow best practices and design patterns, write technical documentation, resolve issues, and ensure scalability, reliability, and performance.