I will be your senior golang developer for backend, rest api and microservices


About this gig
Need a fast, reliable golang backend or REST API built by a senior engineer not a copy-paste job? I build production-grade backends in Go: clean REST APIs, microservices, and the database and concurrency work that holds up under real traffic.
I'm a senior software engineer who works in Go every day. I don't just make it run I build it to scale, with proper architecture, error handling, authentication, and tests you can actually trust.
What I deliver:
- REST APIs in Go (Gin / Echo / standard library) clean, documented endpoints
- Microservices & gRPC services with solid architecture
- Database design & integration PostgreSQL & MySQL
- Authentication, middleware, and third-party API integration
- Concurrency-safe code built for high performance
- Bug fixes & optimization on existing Go backends
Every order ships with clean source code and clear documentation.
Message me before ordering with your requirements so I can confirm scope and quote accurately. Avoiding mid-order surprises keeps delivery fast and your project clean.
Get to know Pasan Madhushan
Senior Software Engineer and Digital Marketer
- FromSri Lanka
- Member sinceMay 2020
- Avg. response time1 hour
- Last delivery2 years
Languages
English, Sinhala
My Portfolio
FAQ
Do you handle the database too?
Yes. Schema design and integration with PostgreSQL or MySQL are included.
Can you fix or extend my existing Go backend?
Absolutely — share the repo and I'll scope it before we start.
Will I get the source code?
Always. Clean, documented source code with every package.
Do you write tests?
Unit tests are included from the Standard package up.

