Engineer, Associate Staff - System Verification
CN-JS-Suzhou
External
Req #: 4823
Type: Regular Full-Time
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Overview:
Shure Incorporated is seeking a hands-on system verification engineer to own the quality, reliability, and performance of our Content Creation microphone series. This role drives end-to-end system testing across hardware, firmware, DSP, acoustics, and companion software (desktop & mobile) to ensure exceptional audio quality and a seamless user experience for content creators and podcasters. Acting as a customer advocate, the person in this position champions product quality from concept through release, safeguarding Shure's reputation for excellence.
Responsibilities:
* System Verification Strategy & Execution: Plan and execute comprehensive end-to-end testing for Shure's Content Creation microphones, covering hardware, firmware, software, DSP, and acoustics. Develop test plans and test cases based on real-world creator workflows (Content Creation, streaming, music recording) to validate performance, reliability, and user experience under true customer conditions.
* Quality Ownership & Defect Management: Act as the product quality champion and voice of the customer throughout the product lifecycle. Proactively identify, document, and track defects with clear evidence and impact statements. Maintain a strong backbone in advocating for prompt fixes of critical issues, and work collaboratively with development, product management, and support teams to ensure high-severity defects are resolved prior to release.
* Desktop & Mobile Application Integration Testing: Conduct thorough integration testing of Shure's desktop (Windows, macOS) and mobile (iOS, Android) applications with the microphones. Verify end-to-end functionality including device discovery, connectivity, firmware updates via apps, audio routing, and in-app control settings to ensure a seamless user experience across platforms.
* Connectivity (USB & Wireless) Testing: Rigorously verify USB connectivity and wireless (Bluetooth Classic & BLE) functionality for Content Creation microphones. Test USB-A/C interface behavior (device recognition, power, driver interactions, USB audio compliance) across multiple host systems, and Bluetooth pairing/streaming scenarios (range, latency, reconnection). Simulate various use cases (multi-device connections, hot-plug/unplug, wireless interference) to ensure robust performance now and readiness for future wireless microphone technologies.
* Audio Performance & DSP Feature Testing: Develop and execute audio acoustics and microphone DSP test strategies to guarantee high-fidelity sound quality. Measure key microphone performance metrics (frequency response, noise floor, distortion, latency) and validate DSP features (e.g., EQs, compressors, limiters, noise reduction) in both lab measurements and subjective listening tests. Ensure the microphone's objective performance and user-perceived audio quality meet or exceed Shure's standards.
Qualifications:
* Education & Experience: Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science or a related field (required). Master's degree is a plus. 4-6+ years of professional experience in system verification, quality assurance, or hardware/software testing (preferably with audio, consumer electronics, or embedded systems). Experience in the audio technology domain or with microphone/recording products is highly desirable.
* Technical Skills & Domain Expertise:
* Desktop Application Testing (Windows & macOS): Proven experience testing PC and Mac applications that interact with hardware devices. Comfortable with installation processes, device driver handling, software update flows, OS-specific permissions, and verifying app-based control/configuration of connected audio devices. Able to assess performance, stability, and reliability of desktop apps in various system conditions (fresh install vs. upgrade, low system resources, etc.).
* Mobile Application Testing (iOS & Android): Hands-on experience testing mobile apps involving hardware connectivity (USB On-The-Go or Bluetooth). Familiar with addressing OS fragmentation (various iOS/Android versions/devices), managing app permissions (microphone, Bluetooth, etc.), and verifying robust behavior under background/foreground transitions, network changes, and app updates. Ensures latency and UX remain optimal on mobile platforms when controlling or recording from the microphone.
* USB Connectivity & Technologies: Strong knowledge of USB 2.0/3.x standards and experience testing USB audio devices. Able to verify USB-A and USB-C connections including device enumeration on different operating systems, driver interactions, power negotiation and charging behavior, adherence to USB Audio Class specifications, and performance characteristics (throughput, latency, jitter). Skilled in testing edge cases like hot-plug/unplug, system suspend/resume, error recovery, and firmware updates over USB, ensuring reliable operation across various hosts and hubs.
* Bluetooth & BLE Wireless: Solid experience testing Bluetooth Classic and Bluetooth Low Energy features in consumer or audio products. Proficient in verifying wireless audio pairing/bonding processes, audio streaming quality and latency, range tests, reconnection robustness, and coexistence with other wireless signals. Understands BLE profiles and low-power behavior. Bonus: Familiarity with general RF/wireless audio systems (e.g., Wi-Fi, proprietary RF).
* Audio Acoustics (Microphone Performance): Strong understanding of microphone acoustics and key audio performance concepts. Able to plan and execute tests measuring frequency response, polar patterns, sensitivity, signal-to-noise ratio (SNR), dynamic range, self-noise, maximum SPL handling, and distortion (THD). Experience with acoustic measurement tools (e.g., audio analyzers, calibrated sound sources) and methodologies to ensure the microphone's acoustic performance aligns with design specifications and customer expectations.
* Microphone DSP & Audio Processing: Strong understanding of DSP algorithms commonly used in microphones (e.g., preamps/gain staging, equalization, compression, limiting, gating, noise reduction, AEC). Experience defining test strategies for verifying DSP features across various settings - confirming that DSP adjustments (like tone presets, filters, or voice presets) behave correctly and do not introduce audio artifacts. Able to test both the functional behavior and the acoustic impact of DSP features to ensure they add value without compromising audio quality.
* Objective & Subjective Audio Quality Testing: Proven ability to assess audio quality through both objective measurements and subjective listening. Skilled in using audio measurement equipment and software to capture quantitative metrics (frequency response curves, THD+N, latency, etc.), and correlating these with listening evaluations (critical listening sessions, user experience trials) to verify that the product's sound quality meets the demands of discerning creators and end-users.
* System-Level Testing Practices: Comprehensive knowledge of system testing methodologies, including functional testing, regression testing, exploratory testing, performance & stress testing, reliability and long-duration ("soak") testing, and corner-case analysis. Ability to design and execute test scenarios that simulate real-world usage over extended periods, ensuring the product performs consistently under varied conditions and over time.
* Tools & Documentation: Proficiency with defect tracking and test management tools (e.g., Jira or similar) to log bugs, track test progress, and report quality metrics. Strong documentation skills to create clear test plans, test cases, and detailed defect reports with steps to reproduce, logs, and impact analysis. Basic familiarity with test automation or scripting and use of lab instruments (audio analyzers, USB protocol analyzers, Bluetooth sniffers, etc.) for troubleshooting is a plus.
* Personal Attributes (Soft Skills):
* Customer Advocacy
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