Own and expand UI, API, and hardware-in-the-loop test automation across the product ecosystem. Build scalable CI/CD testing infrastructure with containerized and ephemeral environments, develop test plans, analyze failures, monitor production defects, and improve quality metrics. Lead performance, security, and user experience testing while evaluating AI-assisted QA tools. Provide technical mentorship and collaborate with software, hardware, DevOps, SRE, product, and operations teams.