Key Responsibilities: Manual feature validation: Execute functional, integration, regression, and exploratory testing for Audio and streaming features on bench and in-vehicle. Test content development: Author new test cases, expand existing test suites, and keep test documentation current as features evolve. Coverage gap closure: Identify untested or under-tested paths in the existing suites and systematically add coverage; track coverage health for each feature track. Root cause analysis: Reproduce defects, capture and analyze logs (Wireshark, DLT, ADB, HCI/Bluetooth traces, vehicle logs), and isolate root cause before handing off to firmware owners. Field issue triage: Own first-line triage for Audio and Streaming feature fleet issues - reproduce in lab, narrow scope, and drive issues to closure in partnership with fleet support, diagnostics, and firmware teams. Defect lifecycle: Manage defects end-to-end in JIRA - clear reproduction steps, attached logs, severity rationale, fix verification, and regression follow-up. Test infrastructure: Maintain test benches, in-vehicle rigs, and diagnostic setups so they stay release-ready. Cross-functional communication: Partner with firmware leads, product managers, and integration partners to align on feature readiness and defect priority.