Sr. Software Quality Assurance Engineer Audio, Edge Technology

Amazon Lab126 is an inventive research and development company that designs and engineers high-profile consumer electronics. Lab126 began in 2004 as a subsidiary of Inc. originally creating the best-selling Kindle family of products. Since then we have produced groundbreaking devices like Fire tablets Fire TV and Amazon Echo. What will you help us create

Work hard. Have fun. Make history.

The Role:
As a Software Quality Assurance Engineer - Audio you will work with consumer application testing expertise. You will join the team of hands-on pro-active self-motivated and seasoned SQA this role you will:
- Create test plans and test cases
- Efficiently execute test cases across all functional areas of our products
- Review product user interface for conformity to design guidelines
- Find isolate document regress and track bugs through resolution
- Interpret and report testing results and be a vocal proponent for quality in every phase of the development process
- Work with Software Development Engineers to understand the overall technical architecture and how each feature is implemented





Key job responsibilities
Key responsibilities
Own end-to-end audio QA for one or more device programs: define test plans test cases and acceptance criteria and drive release sign-off (Day-0 GMC OK2SHIP).
Design and execute functional regression and performance tests for audio features (VoIP ASR/wake-word ANC/passthrough playback echo cancellation/AEC beamforming spatial audio).
Build and maintain automated test suites and lab pipelines; expand coverage and reduce manual effort through shift-left automation.
Define and track audio quality KPIs (POLQA/MOS FRR/FAR ERLE latency/jitter loudness) and report defect-escape rate coverage and release risk to stakeholders.
Triage root-cause and reproduce audio defects; partner with DSP firmware AFE and platform teams to drive resolution.
Own the test infrastructure and device/lab readiness (acoustic setups rigs calibration) needed for reliable repeatable measurements.
Represent audio quality in program reviews; surface regression and schedule risks with clear mitigation plans.
Mentor junior QA engineers and raise the bar on test craft documentation (e.g. TestRail suites) and review mechanisms.


- 6 years of quality assurance engineering experience
- 4 years of delivering test frameworks test tools leading the QA projects and initiatives experience
- Knowledge of QA methodology and tools with demonstrated experience in an QAE role
- Experience in manual testing
- Experience in automation testing
- Experience scripting or coding
- Hands-on experience testing audio DSP or embedded/consumer-device software.
- Solid understanding of digital signal processing and acoustic fundamentals.

- 2 years of UI Automation (preferably on mobile platforms) experience
- Knowledge of at least one modern object-oriented programming language such as C Java Objective C
- Experience with objective audio quality tools and metrics (POLQA/PESQ ACQUA MOS ERLE).
- Familiarity with the hardware device lifecycle (EVT/DVT/PVT) and manufacturing release gates.
- Experience testing VoIP wake-word/ASR ANC or spatial/head-tracked audio.
- Experience with acoustic measurement setups (HATS anechoic/lab test rigs) and calibration.

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