Open to opportunities

Tamirlan Kulzhanov

@tamirlankulzhanov

Go backend developer building resilient microservices, distributed systems, and high-performance APIs for fintech and communications.

Kazakhstan

Message

What I'm looking for

I’m looking for a backend role where I can build resilient Go microservices, optimize performance, and strengthen production reliability with solid observability (Prometheus/Grafana/ELK/Jaeger), clean architecture, and CI/CD.

I’m a Go backend developer with 3+ years of experience in fintech and communications, designing and implementing resilient microservices, distributed systems, and high-performance APIs. I’m known for technical decision-making, performance optimization, and keeping production systems stable.

In my recent work on a banking credit card platform, I developed microservices handling transaction processing, payment gateway integrations, and balance management. I also implemented event-driven architecture with Apache Kafka, improved inter-service communication with gRPC/REST and OpenAPI, and reduced API response time by 40% through database query optimization and Redis caching.

I’ve also built a scalable WhatsApp REST API platform, delivering message sending/receiving and webhook-based notifications. There, I used RabbitMQ for high-volume asynchronous communication, optimized MySQL (reducing database load by 40%), improved release stability by increasing unit test coverage, and strengthened observability with ELK Stack, Prometheus/Grafana, and Jaeger distributed tracing.

Experience

Work history, roles, and key accomplishments

Go Developer

Andersen

Oct 2024 - Jun 2026 (1 year 8 months)

Developed Go microservices for a banking credit card platform, architecting Kafka-based event-driven payment processing and implementing gRPC/REST APIs. Optimized database queries and Redis caching to cut API response time by 40% and increased unit test coverage by 30% to improve release stability.

Go Apache Kafka gRPC REST APIs PostgreSQL Redis Docker Kubernetes ELK Stack

Software Developer

Green-API

Jan 2023 - Oct 2024 (1 year 9 months)

Built and maintained a WhatsApp messaging platform providing REST APIs for sending/receiving messages, webhook notifications, and message journaling. Implemented RabbitMQ-based queuing for high-volume async delivery, reduced database load by 40% with MySQL indexing and Redis caching, and improved QA automation with zero downtime in production.

RabbitMQ REST APIs OpenAPI MySQL Redis Docker ELK Stack