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Ilyas Sarsenbaev

@ilyassarsenbaev

Message

Senior Java and Golang backend developer focused on microservices and DevOps.

Uzbekistan

Message

What I'm looking for

I seek backend engineering roles where I can design reliable microservices, improve observability and DevOps practices, mentor teams, and work on high-availability, cloud-native systems.

I am a senior backend developer with 6+ years building scalable microservices and cloud-native systems across startups, banking, and enterprise domains.

I specialize in Java and Golang, having led migrations from monoliths to microservices, implemented observability stacks, and introduced DevOps practices including CI/CD and infrastructure-as-code.

My notable achievements include developing core banking microservices with Temporal workflow orchestration, improving performance and reliability through observability and automated testing, and increasing development efficiency via containerization and contract testing.

I mentor engineers, run interviews, and promote engineering culture—focusing on code quality, testing, and maintainable architectures to deliver robust production systems.

Experience

Work history, roles, and key accomplishments

Current

Senior Golang Developer

Current

Renesans

Oct 2024 - Present (1 year 4 months)

Developed a microservices core banking platform and web/mobile services, implemented Temporal workflows for order evaluation and KYC with SAGA compensations, and built observability and CI/CD pipelines to ensure high availability and test automation.

Golang Temporal PostgreSQL Docker Swarm ELK VictoriaMetrics Grafana Redis Minio

Senior Backend Developer

Uzum Technologies

May 2023 - Oct 2024 (1 year 5 months)

Led development of cross-border transactions and migration from monolith to microservices, improved CI/CD with integration tests and Docker, and instrumented observability stack using OpenTelemetry and Grafana dashboards.

Java Spring Boot Kubernetes PostgreSQL Kafka RabbitMQ Gitlab CI OpenTelemetry Liquibase

Backend Developer

EPAM Systems

Aug 2021 - May 2023 (1 year 9 months)

Developed a Text-To-Speech microservice and maintained ~50 microservices, migrated to API-first OpenAPI specs, added CI/CD pipelines, and introduced DevOps practices and 24/7 on-call monitoring with Grafana.

Java Spring Boot OpenSearch Kubernetes AWS Lambda Jenkins Istio OpenAPI

Backend Developer

WebMediaGroup

May 2019 - Aug 2021 (2 years 3 months)

Improved application performance ~75% via NoSQL caching, optimized Sphinx search indexing, integrated local payments reducing order time ~40%, and delivered core features ahead of schedule.