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# Ivan Sinitsin
Builds high-load backend systems and tunes Golang performance at Ozon Tech.

## About

Ivan Sinitsin builds backend systems for large-scale e-commerce. As a tech lead at Ozon Tech, he focuses on keeping latency predictable under massive load. His recent work includes building a high-traffic feature store for a major recommendation engine and designing microservice workflows for warehouse management.

Working primarily in Golang, Ivan focuses on distributed systems and practical performance optimization. He frequently breaks down complex backend challenges, exploring memory allocation pitfalls, garbage collector pressure, and concurrency issues that arise when scoring thousands of products per request in production environments.



## Past Sessions

### World Congress 2026 Europe - Virtual Stage · June 30, 2026
Online
- [Scoring 2000 Products per Request: Performance Pitfalls in Golang](https://www.wearedevelopers.com/events/world-congress-2026-europe-virtual-stage/sessions/1595-scoring-2000)