Java App Stability & Enhancements

Our production Java application needs immediate attention in two areas: clearing outstanding bugs and fine-tuning a few performance-sensitive features. The core business logic is already solid; only light, well-targeted tweaks are expected there.

I’m looking for someone who can:
• Step into a mature, legacy codebase, understand the existing architecture fast, and work without disrupting live users.
• Resolve the current bug list, delivering clean, test-covered patches we can ship straight to production.
• Profile slow spots, refactor or optimize where necessary, and leave measurable performance gains.
• Add the occasional minor enhancement to our business rules while respecting established design patterns.

You’ll be working with standard Java tooling (Git, Maven/Gradle, JUnit) and an SQL backend, so fluency in writing efficient queries and understanding relational schemas is important.

This engagement is scoped as short-term, but if your work keeps the app stable and the code reviews stay green, I’ll be happy to roll it into a longer arrangement. Please outline relevant experience with similar production systems and note your typical turnaround time for small fixes when you reply.