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I will rewrite, optimize, and migrate your legacy system to golang
Nishanath W
About this gig
Are performance bottlenecks, high server costs, or unmaintainable legacy code holding your business back?
It is time to migrate to Golang. I am a professional backend engineer specializing in rewriting sluggish, outdated infrastructure into highly efficient, concurrent, and scalable Go microservices.
Whether you are migrating from Node.js, Python, PHP, or Java, I will ensure a seamless transition with zero downtime and cleaner, faster code.
What I Offer:
- Monolith to Microservices: Deconstructing bulky legacy apps into sleek Go services.
- API Rewrites: Migrating REST/GraphQL APIs with optimal routing (Gin, Fiber, Chi) and strict data validation.
- Performance Engineering: Utilizing Gos concurrency model (Goroutines/Channels) to maximize CPU efficiency.
- Database Optimization: Migrating and fine-tuning SQL/NoSQL queries, implementing indexing, or integrating GORM/Sqlx.
- Containerization: Packaging services with minimal Docker multi-stage builds.
Why Choose Me?
- Production-ready, highly idiomatic Go code.
- Strict adherence to clean architecture principles.
- Comprehensive unit and integration testing.
Please contact me before placing an order so we can discuss your current architecture.
Get to know Nishanath W
Nishanath W
Golang Developer
- FromSri Lanka
- Member sinceFeb 2024
- Avg. response time1 hour
Languages
English
I design and develop scalable, high-performance backend applications using Go (Golang). Whether you need a new REST API, microservice, or a complete backend system, I deliver clean, maintainable, and production-ready solutions.
I also help modernize and migrate legacy applications to Go, improving performance, scalability, and maintainability while ensuring a smooth transition with minimal disruption.
My Portfolio
FAQ
Do you handle database migrations along with the code rewrite?
Yes. I will analyze your current database schemas, ensure the Go backend interfaces perfectly with them, and recommend indexing or query adjustments (such as selecting optimal B+ Tree or Hash strategies) to maximize data retrieval speed.
Can you perform the migration with zero downtime?
Absolutely. We can plan a strangler pattern migration, where components are moved to Go incrementally, or set up parallel routing so your live traffic experiences zero interruption.
