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QA engineers ensure software quality through testing strategies that span unit tests, integration tests, end-to-end automation, and performance testing. The role has evolved far beyond manual testing — modern QA engineers write code, build test frameworks, and integrate quality checks into CI/CD pipelines. Shift-left testing and quality engineering are the current paradigm.
The US tech market is the world's largest, with Silicon Valley, Seattle, New York, Austin, and other hubs offering the highest salaries globally. Remote work has distributed opportunities more broadly, though major tech companies are increasingly requiring office presence. The market is competitive but rewards specialized skills handsomely.
Work authorization: Most tech professionals enter on H-1B visas (annual lottery, employer-sponsored) or L-1 visas (intra-company transfers). The O-1 visa serves individuals with extraordinary ability. Green card processing through employer sponsorship can take several years depending on country of birth.
Junior QA → QA Engineer → Senior QA → QA Lead/SDET → QA Architect → Director of Quality Engineering. Senior QA engineers increasingly take on "quality engineering" or "SDET" (Software Development Engineer in Test) titles that reflect the programming-heavy nature of modern testing.
Automation skills are non-negotiable for mid-level and above. Show frameworks you've built, not just tests you've written. Understanding of testing pyramids, shift-left strategies, and CI/CD integration demonstrates strategic thinking. A GitHub repo with a well-structured test suite is worth more than certifications.
QA engineers write and maintain automated tests, review test results from CI pipelines, investigate test failures, perform exploratory testing for new features, update test plans, collaborate with developers on testability, and track quality metrics. They advocate for quality practices across the engineering organization.