I will develop a scalable backend service or rest API in golang

O
oakhmetkhan
O
oakhmetkhan
Olzhas A.
develop a scalable backend service or rest API in golang
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develop a scalable backend service or rest API in golang

About this gig

Need a fast, reliable backend built by a senior engineer? I have 10+ years building high-load, mission-critical systems in Go, with deep experience in fintech, payments and crypto exchange infrastructure.


I can build REST and gRPC APIs and microservices in Go, design and optimize your databases (PostgreSQL, Redis, ClickHouse), build event-driven systems with Kafka or RabbitMQ, and deliver Dockerized, CI-ready services with tests and clean architecture. I also handle performance tuning and refactoring of existing Go code.


Track record: scaled payment processing 10x, cut database memory footprint 8x, and reduced service latency 3-4x on production systems.


You get clean, well-documented code, clear communication and a solution built to scale. Please message me with your requirements for a tailored offer before ordering.

  • Expertise

    • Algorithms & Data structures
    • Performance
    • Security
    • Databases
    • Testing procedures

  • Programming language

    • Go

Get to know Olzhas A.

Olzhas A.

Senior Go Backend Engineer for high load systems and microservices

  • FromKazakhstan
  • Member sinceMar 2025

  • Languages

    English, Russian
Senior backend engineer and tech lead with 10+ years building high-load, mission-critical systems in Go. I specialize in backend development - high-throughput APIs, microservices, and performance optimization - with deep experience in fintech, payments, and crypto exchange infrastructure. Selected results: scaled payment processing 10x, cut Postgres memory footprint 8x, and reduced service latency 3-4x. I can design your architecture, build reliable Go services, optimize databases, cut infrastructure costs, and review or refactor existing code.

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