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# Java performance engineer :: St Louis, MO or Tampa, FL (Onsite)

- **Company:** Stellent IT LLC
- **Location:** Tampa, FL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Static Program Analysis, Code Review, Continuous Integration, Software Debugging, Enterprise Content Management, Java Platform Enterprise Edition (J2EE), IBM Software, Java Virtual Machine (JVM), Metadata, Performance Testing, Spring-boot, Software Security, Caching, Rate Limiting, Sqljdbc, Restful APIs, Code Restructuring, Api Management, Microservices
- **Published:** October 17, 2026
- **Apply:** https://www.careerjet.com/jobad/us5987cc6cf4da33c86df5cdd40cfa6b11

## About the Role

* We need someone who can quickly get hands-on with the existing Java codebase, identify performance bottlenecks, recommend architectural improvements, and lead implementation alongside the current team.

The ideal candidate will have strong experience in:
Java | Spring Boot | REST APIs | Microservices | JVM Performance | SQL/JDBC | Connection Pooling | Caching | Rate Limiting | API Security | Performance Testing | Observability | CI/CD

 * Enterprise Content Management / IBM FileNet experience is a strong plus, particularly experience with FileNet Content Engine Java APIs, metadata, document classes, security, and large-volume document processing.
 * This should be a technical and hands-on lead role, not primarily a project-management or coordination role.
 * Please prioritize candidates with demonstrated experience improving the performance and scalability of high-volume enterprise Java APIs and share the best-fit profiles.

We would also prefer candidates with practical experience using enterprise-approved AI-enabled IDEs/coding assistants to accelerate code analysis, development, refactoring, testing, debugging and technical documentation. We are particularly interested in candidates who can demonstrate measurable engineering value from AI-assisted development while maintaining appropriate security, code-review and governance standards.

## Description

* We have an immediate need for a Senior Java/API Technical Lead contractor to accelerate performance improvements and capability enhancements for our OASIS enterprise content API platform.