Insights on test automation, CI/CD optimization, contract testing, and software quality engineering from 10+ years of experience.
How I built a sub-5ms semantic search system for 31 AI specialists using pgvector HNSW indexes, asyncpg connection pooling, and cosine similarity — with zero downtime migrations.
A production guide to Server-Sent Events with FastAPI, OpenAI streaming, and asyncio backpressure control. From first token in 200ms to a fully streamed response with zero dropped connections.
A practical guide to running Playwright E2E tests against a WireGuard-protected staging environment. Page Object Model, fixture-based auth, parallel sharding, and how I got from 67% to 97% test pass rate.
A comprehensive guide on optimizing CI/CD pipelines for test automation. Learn the strategies that cut execution time from 45 to 18 minutes at EPAM Systems.
After using both Playwright and Cypress in production for 2+ years at EPAM, here's an honest comparison based on real-world experience, not benchmarks.
Production-grade guide to automating Flutter apps (iOS/Android) with WebdriverIO + Appium Flutter Integration Driver. Enterprise architecture using SOLID, DI, and design patterns. Includes real-world examples and device cloud integration.
A practical guide to implementing consumer-driven contract testing with Pact.js in a microservices architecture. Learn how we eliminated 100% of API-related production incidents over 12 months.
A deep dive into building reliable mobile test automation with Detox and WebDriverIO. Learn the patterns that transformed our flaky test suite into a stable CI/CD pipeline.