I build reliable backend systems for pricing, payments, antifraud, data infrastructure, and crypto/Web3 products. 5+ years in production backend engineering.
| Company | Dates | Context |
|---|---|---|
| Ozon | Jul 2020 – Oct 2022 | Marketplace infrastructure · storage and Kafka |
| GotBit | Oct 2022 – Nov 2023 | Crypto market-making systems · EVM, Solana, and TON |
| Avito | Nov 2023 – Jan 2025 | Marketplace payments and antifraud |
| Blum | Feb 2025 – Aug 2025 | Consumer crypto · high-load backend |
| inDrive | Nov 2025 – Jun 2026 | Global mobility · recommended pricing |
I work best on systems where correctness, throughput, and operational clarity matter. I’m currently independent and open to senior backend, infrastructure, and SRE opportunities.
| Area | Contribution |
|---|---|
| Ozon Storage & Kafka |
Split a roughly 1 TB database into 24 shards without downtime and improved Kafka consumer/producer throughput by 2.5× under resource constraints. |
| inDrive Pricing platform |
Worked on recommended-pricing services across 14 AWS EKS clusters, adding metrics, tracing, and dashboards that made incidents easier to diagnose. |
| Avito Payments & antifraud |
Built scoring for 50%+ of payment traffic and fixed a PgBouncer/PostgreSQL issue affecting daily credit-score recomputation for 2M+ users, improving the result from 75% to 99.99%. |
| Blum High-load backend |
Rewrote a TypeScript MVP in Go for 22M DAU and 200K concurrent users, added Telegram Stars payments, and reduced a ScyllaDB footprint from 2.5 PB to about 100 TB. |
| GotBit Multi-chain infrastructure |
Led backend work on two production EVM forks based on go-ethereum across 24 servers, alongside services for EVM, Solana, and TON. |
- shell-skill — a Claude Code plugin bundling shell-related skills, reference material, and practical guidance.
- My Journey to Understanding Saga
- Discord Antifraud UX — Case Study
All opinions are my own and not the views of any current or past employer, contract counterparty, or other affiliated entity.