As a Software Test Engineer with 5+ years in QA, I led a project to stabilize our automation suite using Docker. Our Selenium tests were flaky due to different local setups. I containerized our entire test runtime environment including browsers, test data and API mocks, and integrated it with Jenkins for distributed test execution. This improved lifecycle management and consistency. The project reduced test flakiness by 60% and cut execution time from 90 min to 30 min, which was a major accomplishment for our release velocity.
