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I will fix golang backend bugs and rest API errors
Abir Sarkar
About this gig
Is your Golang backend crashing, returning API errors, or failing tests? I can help you diagnose and fix reproducible bugs in your Go application.
I'm a backend engineer with 5+ years of development experience, specializing in Go, REST APIs, databases, and backend services.
WHAT I CAN FIX
- Golang runtime errors and panics
- REST API bugs and incorrect HTTP responses
- Gin, Fiber, Echo, and Go HTTP handler issues
- PostgreSQL and SQL-related errors
- JSON parsing, validation, and middleware bugs
- Authentication and JWT-related issues
- Failing Go unit tests
WHAT YOU RECEIVE
- Investigation of one agreed bug
- Clean, maintainable code changes
- Regression tests where feasible
- A fix summary and verification instructions
- Documentation according to your package
WHY WORK WITH ME?
- 5+ years of backend development experience
- Focus on root causes, not temporary workarounds
- Clear communication and defined deliverables
- Testing-oriented approach
IMPORTANT: Each order covers one agreed issue. Please message me with your error logs, reproduction steps, and expected behavior before ordering so I can confirm the scope.
Get to know Abir Sarkar
Abir Sarkar
Go Backend Engineer REST APIs Debugging
- FromIndia
- Member sinceJan 2022
- Avg. response time1 hour
Languages
Bengali, English, Hindi
I'm a backend engineer with 5+ years of professional and freelance experience, specializing in Golang, REST APIs, PostgreSQL, and Python.
I help businesses debug backend errors, build reliable APIs, integrate third-party services, and automate workflows using Go, FastAPI, and Docker.
I focus on clean, maintainable code, systematic debugging, testing, and clear documentation.
With an M.Sc. and M.Phil. in Physics, I bring strong analytical problem-solving skills to every project.
Need help with your backend? Let's discuss your requirements.
FAQ
What types of Golang bugs can you fix?
I work on Go backend issues including runtime errors, REST API failures, database queries, JSON handling, middleware, authentication bugs, and failing unit tests. Please share the issue before ordering so I can confirm feasibility.
Do you support Gin, Fiber, Echo, and standard Go HTTP?
Yes. I can work with these frameworks and Go's standard net/http package, depending on the project structure and the issue involved.
What do you need before starting?
Please provide the Go version, framework, relevant source code, error logs, reproduction steps, and expected behavior. Remove passwords, API keys, and other secrets before sharing.
Will you provide the fixed source code and tests?
Yes. I provide the agreed code changes and verification instructions. Regression tests are included where feasible and according to the selected package.
Can you fix multiple bugs in one order?
Each package covers one defined issue. For multiple unrelated bugs or larger architectural problems, please contact me for a custom offer.
What if the bug cannot be reproduced?
I will request additional information or a minimal reproducible example. If the problem remains unclear, further diagnosis or implementation must be agreed separately.
