Vlad Nepomniashchyi

Led backend/API work for microservices platform (Flask/Python), formalized API contracts and pagination/idempotency patterns. Introduced event-driven communication across services (broker-based), improving real-time data flows and decoupling producers/consumers. Hardened delivery pipeline (GitLab + Docker), accelerating safe releases; raised automated test coverage with Pytest and fixtures.

Built and operated high-throughput REST services (FastAPI) backed by PostgreSQL/TimeScale; defined indexing/partitioning tactics for time-series and JSON payloads. Scaled async workloads via message queues; established request tracing and actionable dashboards for latency/p95/p99 and failure budgets. Ran structured load testing to find bottlenecks and justify caching and query-plan fixes; delivered AWS-hosted services via ECS/Fargate with CI/CD.

Streamlined ops, improved launch times and retention; kept here brief to reflect current individual-contributor focus.

Delivered B2B backend (Flask + PostgreSQL + Redis + Docker), reduced support costs by shifting flows to automated services; handled task decomposition, code reviews, and delivery metrics.