Top Senior Java Engineer Jobs in Chicago, IL

Build and maintain full-stack production applications and services that integrate frontier LLMs. Design, test, and stress-test systems, diagnose failures, prototype rapidly, and collaborate with engineering and research teams to deliver reliable, deployable software and evaluation tooling.

Lead full-stack developer designing, building, testing, and supporting Java/JavaScript/AngularJS web applications. Responsible for architecture, UI/UX, RESTful integrations, database design, internationalization, mentoring junior developers, code reviews, and improving legacy systems within enterprise, cross-functional projects.

Senior Java engineer responsible for designing, developing, and maintaining scalable, secure backend systems using Java and modern frameworks. Participate in architecture, collaborate with product and security teams, write maintainable code, and adopt AI-assisted development tools while contributing to open-source efforts.

The Senior Java Full Stack Web Developer will design, develop, and implement web and API-based software solutions, ensuring quality while collaborating with teams and managing multiple priorities.

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.