Stefan Shepin

Designed an AI-driven testing platform that generated tests from pull-request changes and tracked coverage, quality metrics, and alerts; reviewed generated output for correctness, determinism, maintainability, and meaningful risk coverage. Built and owned a Playwright API and backend automation framework for a financial application, covering critical user, transaction, authentication, persistence, and security workflows. Built and owned a Detox mobile end-to-end framework from zero, reaching 100% coverage of critical customer journeys and integrating nightly runs, pull-request test selection, and CI/CD quality gates. Partnered across engineering, product, and DevOps to assess risk, triage defects across app/API/data/automation/environment layers, and convert root causes into regression coverage.

Architected scalable Playwright, Cypress, Selenium, API, integration, and performance automation for complex enterprise platforms using reusable libraries, SQL-backed validation, test-data solutions, observability, and CI/CD execution. Led quality standardization across ~29 delivery pods, aligning seven QA leads on risk-based planning, framework architecture, shift-left practices, metrics, code reviews, test management, quality gates, and release governance.

Built robust Playwright and Cypress end-to-end automation with a REST Assured API testing layer, reusable components, backend validation, detailed defect investigation, and CI/CD execution. Managed three QA engineers while staying hands-on; defined test scope and estimates, reviewed test cases and automation code, tracked quality outcomes, supported release and UAT activities, and coached engineers on reliable automation practices.