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Санжар User

@user241

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Golang-developer specializing in event-driven microservices, REST APIs, and PostgreSQL performance optimization.

Russian Federation

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What I'm looking for

I’m looking for a Golang-focused backend role where I can build event-driven microservices and optimize PostgreSQL, with strong CI/CD and clean-code culture. I prefer working at the employer’s location and I’m excited to apply my experience to Temporal and high-load telecom systems.

I’m a Golang-developer with 3 years 4 months of production experience building event-driven microservices, RESTful APIs, and optimizing complex PostgreSQL databases. I’ve led migration from legacy components to Go architectures to improve service responsiveness and reduce resource consumption.

I design asynchronous systems using gRPC, RabbitMQ, and Apache Kafka, and I focus on reliability—fault tolerance, high availability, and smooth production launches under tight deadlines. I also integrate SSO with Keycloak for centralized authentication and access management.

I treat testing as a first-class responsibility, achieving > 80% unit test coverage and setting up robust CI pipelines for automated code quality checks. I care deeply about clean code, strict CI/CD, and strong input validation to close security risks across user inputs, and I’m eager to apply my backend expertise to workflow engines (Temporal) and high-load telecom infrastructure.

Experience

Work history, roles, and key accomplishments

Golang-разработчик

SimpleOne

Dec 2024 - May 2026 (1 year 5 months)

Spearheaded migration of legacy components to Go for a large-scale ESM platform, reducing resource consumption and accelerating service response times by 42%. Built event-driven microservices with gRPC, RabbitMQ, and Apache Kafka, optimized PostgreSQL queries, and improved REST API latency while integrating Keycloak (SSO) and strong input validation.

Go Microservices Event Driven Architecture gRPC RabbitMQ Apache Kafka PostgreSQL REST APIs Query Optimization Indexing Unit Testing CI CD Code Quality Keycloak SSO Phishing

Golang-разработчик

Gamesoncd

Feb 2023 - Nov 2024 (1 year 9 months)

Architected and built backend infrastructure for a high-traffic news web portal from scratch using Go, collaborating with frontend developers on REST API contracts. Implemented CI/CD pipelines, and ensured fault tolerance and high availability to launch the project to production within deadlines.

Go Backend Development REST APIs CI CD Fault Tolerance High Availability