I will build or fix your java spring boot rest API backend

V
viacheslavchern
V
viacheslavchern
Chernyshov V.
build or fix your java spring boot rest API backend
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build or fix your java spring boot rest API backend
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About this gig

Are you struggling with a Java bug or need a custom Java

application built from scratch?

I'm a Java Software Engineer with 10+ years of enterprise

experience. I've built document management systems, HR

platforms, LIMS, and REST APIs for companies in Ukraine

and the UK.

What I can help you with:

  • Fix bugs or errors in your Java code
  • Build a Java console or desktop application
  • Create a simple REST API with Spring Boot
  • Work with files: CSV, Excel, JSON, XML
  • Database integration (Oracle, MS SQL, MySQL)
  • Write clean, well-structured, maintainable code

Why choose me:

  • 10+ years of real enterprise Java experience
  • Fast communication and clear updates
  • Clean code with comments on request
  • On-time delivery always

Whether it's a university project, a startup MVP, or a

business tool I'll get it done right.

If you have your own ideas or specific requirements, I'm open to discussing them and ready to help bring them to life.

Message me before ordering if you have questions.

I'm happy to discuss your project first!

  • Programming language

    • Java

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Security
    • Databases

  • Frontend framework

    • jQuery

  • Backend framework

    • Spring

Get to know Chernyshov V.

Chernyshov V.

Java Backend Developer, Spring Boot, REST APIs, Microservices

  • FromUkraine
  • Member sinceMar 2026

  • Languages

    Ukrainian, Russian, English
Java Backend Developer with 10+ years of experience building enterprise systems, document management platforms, and HR/payroll software for product companies. Stack: Spring Boot, Hibernate, REST APIs, Kafka, Redis, Oracle SQL, Docker, CI/CD. What you get: clean maintainable code, on-time delivery, support after completion. 📩 Message me before ordering — let's discuss your project first.

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