I will develop or fix go applications and rest apis

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marcel_csoglei
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marcel_csoglei
Marcel C

About this gig

Need help with a Go (Golang) application or REST API?

I'm a Software Engineer working professionally with Go, backend services, REST APIs, and distributed systems.

I can help you build small backend features, implement API endpoints, fix bugs, and integrate external services.

WHAT I CAN DO FOR YOU

️ Go Backend Development

  • Implement new features in Go
  • Fix bugs in existing Go applications
  • Write clean, maintainable code
  • Implement business logic and data processing
  • Refactor small parts of existing code

REST API Development

  • Develop HTTP handlers and REST endpoints
  • Handle JSON requests and responses
  • Implement request validation and error handling
  • Integrate third-party APIs
  • Write unit tests for backend functionality

Debugging & Improvements

  • Investigate unexpected application behavior
  • Improve error handling and logging
  • Add automated tests
  • Troubleshoot API integrations
  • Help improve code readability and maintainability

WHY WORK WITH ME?

I currently work as a Software Engineer at Sportradar, developing Go backend services and REST APIs for advertising technology products.

My previous experience in technical account management also taught me how to investigate complex technical issues, underst

Get to know Marcel C

Marcel C

Software Engineer

  • FromSlovakia
  • Member sinceOct 2026
  • Languages

    English
I am a Software Engineer with extensive experience in developing backend services and REST APIs using Go. I specialize in advertising technology, managing complex data pipelines, and optimizing programmatic advertising workflows. I have a proven track record of improving service reliability and collaborating on architecture decisions to drive client success.