I will fix java spring boot backend bugs and rest API issues

I help startups, agencies, and businesses fix critical bugs and errors in their Java Spring Boot backends and REST APIs fast, clean, and production-ready. With 5+ years of Java development experience, including real banking-sector projects, I know how to track down issues quickly without breaking anything else in your codebase.

What you will get:

• Clear identification of the root cause, not just a quick patch
• A fixed bug or optimized module, tested and ready to deploy
• Clean, well-commented code so your team can maintain it easily
• Quick turnaround with reliable, honest communication throughout

I specialize in:

• Spring Boot applications
• REST API development & debugging
• JPA/Hibernate optimizations
• Microservices and backend architecture
• Database query optimization

Why choose me?

• Real-world experience on banking and fintech backend systems
• Fast, precise solutions no guesswork, no unnecessary rewrites
• Clear communication in English and Russian
• I explain what caused the bug, not just that it's fixed

Not sure if your issue fits Basic, Standard, or Premium? Message me with your error log, stack trace, or a short description of the problem before ordering, and I'll tell you