Top Senior Java Developer Jobs in Chicago, IL

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 Java developer responsible for designing and building distributed, web-based applications using Java/J2EE. Work includes OOA/OOD, core business logic, APIs/frameworks, UI integration, SOA/web services, test-driven development, automation tooling, and working across Unix/Windows environments. Collaborate in agile teams and use modern frameworks and messaging/DB technologies.

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.

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.

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.

Design, build, and maintain scalable J2EE business applications. Implement features, fix bugs, participate in code reviews, automate tests, optimize performance, and produce documentation.

Lead backend Java development and architecture for enterprise applications. Design and deliver scalable, resilient microservices and APIs, mentor developers, lead technical decisions, support production incidents, and implement CI/CD and cloud-native solutions on AWS.

Design, develop, and maintain Java-based backend services and APIs for KeeperApp. Own backend components, optimize MySQL schemas/queries, ensure performance and reliability, apply secure coding practices, participate in code reviews, and collaborate with product and engineering teams to deliver features iteratively.

Maintain, support, and enhance IAM Identity Infrastructure applications. Interface with middleware to upgrade 300+ WebLogic instances and modify apps for compatibility. Perform application regression testing, fix backward-compatibility issues, and handle installation, configuration, and optimization on platforms like WebLogic, Tomcat, and Drools (JBoss). Support design, build, and operation of large-scale enterprise applications.

Lead development of Java/J2EE applications using Spring, Hibernate, Web Services, and WebSphere. Work with PL/SQL, Adobe Flex, unit testing, basic Unix, and follow SDLC processes.

Build and maintain Java/J2EE APIs and distributed, multi-threaded applications. Design using RDBMS/PL/SQL, JSP, JavaScript; deploy on Tomcat. Implement OAuth2/API authentication, use API tooling (Swagger/RAML). Translate business requirements into technical designs, follow SDLC and best engineering practices, and work in a global delivery environment.

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).

Full-stack Java developer building web applications using Java/JEE, Spring, and JavaScript front-ends (AngularJS or ReactJS). Work in Agile XP with pair programming and TDD, using IntelliJ, GitHub, MongoDB, Jenkins, Docker, and Node.js. Collaborate across global teams in the insurance domain; travel or relocation may be required.

Full‑stack Java UI developer role building web UIs with Java/JEE and AngularJS/ReactJS. Work in Agile/XP environments using pair programming and TDD, employ Spring, MongoDB, Jenkins, Docker and Node.js, and contribute across the SDLC. Insurance domain experience preferred.

Full‑stack Java/UI developer role building web applications using Java/JEE and modern JavaScript frameworks (AngularJS or React). Work in Agile/XP teams, apply TDD/pair programming, use Spring, MongoDB, CI/CD (Jenkins, Docker), and Node.js. Collaborate with stakeholders and contribute across the SDLC, preferably with insurance domain experience.

Full‑stack Java UI developer role focused on building web UIs with Java/JEE and AngularJS (or React). Work in Agile/XP environments using Spring, MongoDB, Jenkins, Docker, Node.js, GitHub and IntelliJ. Emphasis on TDD, pair programming, SDLC experience, collaboration across stakeholders, and insurance-domain knowledge.

Develop and implement Java/JEE-based UI solutions using JavaScript frameworks (AngularJS or ReactJS). Work in Agile/XP environment with pair programming and TDD, using Spring, MongoDB, Jenkins, Docker, Node.js and GitHub. Domain experience in insurance required.

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.

Full‑time Java UI / full‑stack developer role building Java/JEE and JavaScript (AngularJS or React) user interfaces and services. Work in Agile/XP teams using pair programming and TDD, with tools like Spring, MongoDB, Jenkins, Docker, Node.js, and IntelliJ/GitHub.

Develop and maintain Java-based UI/front-end applications as a full-stack developer. Work in Agile/XP environments using pair programming and TDD. Use Java/JEE, modern JavaScript frameworks (AngularJS or React), Spring, MongoDB, CI/CD tools (Jenkins, Docker), and collaborate with stakeholders in the insurance domain to meet delivery targets.

Develop Java-based UI/front-end and full-stack features using Java, JEE, and modern JavaScript (AngularJS or React). Follow Agile/XP practices including pair programming and TDD, use tools like IntelliJ, GitHub, Spring, MongoDB, Jenkins, Docker, and Node.js. Work within the insurance domain and collaborate with multiple stakeholders to meet delivery velocity.

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.

Full‑stack Java UI Developer responsible for designing and implementing Java/JEE backends and JavaScript-based UIs (AngularJS or React). Work in Agile/XP teams using TDD and pair programming. Use Spring, MongoDB, Node.js, Jenkins, Docker and Git for CI/CD and delivery. Must have insurance domain experience and operate within a global delivery model.

Seeking a Full Stack Developer with 6+ years experience, specializing in Java, Spring, and AWS, to build and mentor in Agile environments.

Design, build, and maintain scalable enterprise full-stack applications using Java, Spring Boot, microservices, and modern front-end frameworks. Implement cloud-based solutions on AWS, contribute to CI/CD and DevOps automation, optimize performance and security, and integrate AI-driven capabilities using Python and orchestration tools like LangChain and LangGraph.