Alexander Malinin
@alexandermalinin
I build reliable high-load .NET warehouse systems handling 20,000 RPS for Ozon Tech.
Russian FederationWhat I'm looking for
At Ozon Tech, I build warehouse management systems used across 2,000+ warehouses by 40,000+ internal users. The core services I work on handle up to 20,000 RPS at roughly 50ms latency.
I led a zero-downtime PostgreSQL sharding cutover at 20,000 RPS, migrated 4.5TB of operational history to ClickHouse, and reduced a slow write endpoint from 2,000ms to 300ms. I also raised reliability from about 95% to 99.5%+ by addressing async patterns, race conditions, and error handling.
Previously at First Line Software, I delivered backend work for US and EU clients in retail, home climate control, and oncology decision support. I built search, payments, access control, calculation engines, notifications, 2FA, recommendation logic, and Azure CI/CD pipelines.
I enjoy taking ownership of production migrations, incident recovery, technical design, and difficult distributed-systems problems. I'm open to remote B2B contract opportunities.
Experience
Work history, roles, and key accomplishments
Ozon is one of Russia's largest e-commerce platforms. I'm part of the team that runs warehouse management systems for 2,000+ warehouses and 40,000+ internal users - the core services I work on handle up to 20,000 RPS at ~50ms latency.
• Owned a full decommission of 200,000 legacy warehouse containers. The spec said they were ready - validation showed 99.96% weren't. Built a reconciliation layer
Three projects over 2.5 years, all with US or EU clients, requirements and communication in English.
• Retail product tagging platform for clients in the Walmart and Home Depot ecosystem (~hundreds of thousands of SKUs). Legacy codebase being refactored to onion architecture in production while we were shipping. Built filtering and search, integrated Stripe payments and third-party APIs, impleme
Education
Degrees, certifications, and relevant coursework
ITMO University
Master's degree, Computer and Information Systems Security/Information Assurance
2020 - 2022
ITMO University
Bachelor's degree, Information Technology
2016 - 2020
Tech stack
Software and tools used professionally
Availability
Location
Russian FederationAuthorized to work in
Salary expectations
Social media
Job categories
Skills
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