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I will fix go golang backend, rest API and react bugs
Md.Khairozzaman
 Backend, REST API React Bug Fixing Services_l4sryi.jpg)
About this gig
Is your Go (Golang) backend, REST API, or React application facing bugs, errors, authentication issues, or performance problems?
You're in the right place!
I'm a Go (Golang) Backend Developer specializing in debugging, fixing, optimizing, and improving existing backend applications and REST APIs.
I can help with:
- Go backend bugs and errors
- REST API debugging
- React + Go API integration issues
- JWT authentication & authorization
- Login, registration & protected routes
- PostgreSQL / SQL query issues
- CRUD API problems
- Middleware & CORS issues
- JSON request/response errors
- Performance optimization
- Database query optimization
- Code refactoring
- Postman API testing
I focus on clean, secure, maintainable, and performance-oriented solutions while keeping your existing project structure in mind.
Technologies: Go (Golang), REST API, React, PostgreSQL, SQLx, JWT, JSON & Postman.
Please contact me before placing an order and share your issue or project requirements so I can understand the problem and confirm the scope.
Get to know Md.Khairozzaman
Md.Khairozzaman
Go Backend Developer REST API and PostgreSQL
- FromBangladesh
- Member sinceMar 2019
- Avg. response time1 hour
Languages
English
Hi, I'm Md. Khairozzaman, a Go Backend Developer specializing in secure and scalable backend solutions. I help businesses build REST APIs, custom backend systems, PostgreSQL databases, JWT authentication, API integrations, and CRUD applications using Go (Golang). I write clean, maintainable, and production-ready code following Clean Architecture. Whether you need a new backend, performance optimization, or bug fixes, I'm committed to delivering reliable solutions with clear communication and on-time delivery.
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Other Software Development Services I Offer
FAQ
What types of bugs can you fix?
I can fix bugs related to Go (Golang) backends, REST APIs, React applications, authentication, CRUD operations, database queries, middleware, CORS, JSON handling, and API communication.
Can you fix JWT authentication issues?
Yes. I can troubleshoot and fix JWT authentication and authorization issues, including login, token validation, protected routes, and middleware-related problems.
Can you fix React and Go API integration issues?
Yes. I can troubleshoot communication issues between React and Go REST APIs, including API requests, responses, authentication tokens, CORS, JSON data, and error handling.
Can you optimize my Go backend or REST API?
Yes. I can identify performance bottlenecks and improve backend code, database queries, API performance, and inefficient implementations where applicable.
What technologies do you work with?
I primarily work with Go (Golang), REST API, React, PostgreSQL, SQLx, JWT, JSON, and Postman.
