Senior Staff Engineer, Audio QA

Key Responsibilities:

• Designed and executed comprehensive audio quality test plans for VoIP features on wearable devices.
• Validate microphone and speaker audio paths, codecs, echo cancellation, noise suppression, and voice clarity.
• Conduct MOS (Mean Opinion Score) testing and other subjective and objective audio quality assessments.
• Test audio performance in various real-world and lab conditions (e.g., network types, ambient noise environments, device orientations).
• Use test tools and frameworks to capture, analyze, and log audio signals (e.g., latency, jitter, packet loss, dropouts).
• Conduct wakeword testing for voice assistant features and assess responsiveness and false trigger rates.
• Perform product benchmarking and ensure compliance with audio standards (e.g., TIA-920B).
• Collaborate with software, firmware, hardware, and UX teams to troubleshoot and isolate audio defects.
• Document test cases, test results, defects, and contribute to product release sign-off.
• Contribute to the automation of audio tests wherever applicable.

Required Skills & Qualifications:

• Bachelor s degree in Electronics and Communications, DSP, Electrical, Computer Engineering, Acoustics, or a related field.
• 8+ years of experience in audio QA testing, preferably for VoIP, telephony, or wearable products.
• Prior experience with audio performance measurement tools such as:

• Audio Precision (APx)

• Listen SoundCheck

• ACQUA

• HATS (Head and Torso Simulator)

• Hands-on experience with tools like:

• Wireshark

  (for packet capture and VoIP call analysis)

• Adobe Audition, sox,Audacity

  , or similar for waveform analysis
• Experience with MOS testing (POLQA, PESQ), subjective audio quality testing, and scripting.
• Experience with product compliance testing for standards like

  TIA-920 B

  .
• Familiarity with mobile and embedded platforms (Android, iOS, RTOS) is a plus.
• Excellent troubleshooting skills, attention to detail, and communication skills.

Nice to Have:

• Experience with noise-canceling algorithms (ANC, ENC, beamforming) testing.
• Experience testing Bluetooth and wireless audio (BLE, Classic BT, Wi-Fi).
• Experience with wake word testing and voice UI systems (e.g., Alexa, Google Assistant, Siri).
• Prior work with wearable audio devices such as smart headsets, earbuds, or AR/VR headsets.
• Solid understanding of VoIP protocols (SIP, RTP, RTCP), audio codecs (e.g., Opus, G.711, G.722), and related networking concepts.
• Exposure to Agile development and CI/CD pipelines for automated testing.