I've built backend modules for T-Bank's non-state pension savings platform, designing C#/.NET microservices, REST/gRPC APIs, Kafka integrations, and resilient distributed processes. I improved high-load API response times by about 20% and reduced service memory use by about 25%.
Previously at Emerline and EPAM Systems, I connected microservices through RabbitMQ, Azure Service Bus, and REST APIs; migrated legacy ASP.NET Web Forms to .NET 6; optimized SQL Server queries from seconds to hundreds of milliseconds; and supported production systems with testing, CI/CD, observability, and architecture discussions.
