Yehor Dremliuha

Software Engineer @Black Cow Technology

Oxford, GB

iGaming (RGS)​​1) Contributed to the development of the world\'s first unique Multiplayer Server for RGS written inPython with ECS framework with active daily users and 1 billion of bet requests/year.2)​ Built on robust backend systems using microservices, WebSockets, REST, and HasuraGraphQL, powering real-time, scalable applications.3)​ Integrated custom DevOps tools into the CI/CD pipelines, boosting team productivity andsaving 1,300+ engineering hours annually across 400+ projects (game engines).4) Improved SQL performance through deep optimization of queries, indexes, and triggers —leveraging OTLP(OpenTelemetry), profiling, and visual analysis.5) Built automated reporting dashboards for transaction data, enabling data-drivendecision-making and operational transparency via Hasura GraphQL.