Senior Product Quality Engineer, EE

We are looking for a Senior Product Quality Engineer, EE to join our Product Quality team in San Francisco, California. In this role you will lead Early Field Failure Analysis (EFFA), field quality, and product safety for the Oura Ring, covering both products currently in mass production and earlier generations still in members’ hands. You will determine why electrical failures occur in the field, confirm the mechanism behind them, and drive the design, process, supplier, and test changes required to prevent them from recurring.

Responsibilities

Own electrical Early Field Failure Analysis (EFFA) for Oura Ring products, from returned unit intake and evidence review through technical disposition, confirmed mechanism, and closure; Lead field quality and safety investigations for battery, charging, and power-related issues, including risk assessment, containment and escalation decisions, and the supporting technical rationale for Reliability, Regulatory, and Member Experience; Direct non-destructive-first analysis workflows covering received-condition documentation, electrical characterization, ring diagnostics, optical inspection, and imaging prior to any destructive analysis; Isolate failure mechanisms across power, battery, charging, sensor, clock, connectivity, interconnect, and leakage-related faults to the component, material, or process level using DMM, oscilloscope, current measurement, thermal imaging, micro-probing, and X-ray/CT; Build serial-level evidence packages combining product configuration, hardware and firmware revision, manufacturing genealogy, factory test history, telemetry, and diagnostic records against the member-reported symptom; Analyze field, factory, and FA data to establish commonality across manufacturing site, build lot, supplier, component, ring size, hardware and firmware revision, product age, geography, and diagnostic signature; Distinguish reported symptom from failed function and confirmed mechanism, documenting supporting and contradicting evidence, remaining open questions, and confidence in the disposition; Drive corrective action with CMs and suppliers, including factory containment, process control updates, inspection and test coverage, design and firmware changes, and additional reliability validation; Verify corrective action effectiveness against before-and-after field, factory, reliability, or component data prior to closure; Feed confirmed field and factory findings into NPI through design and DFMEA reviews, component and supplier selection, test coverage definition, traceability requirements, and reliability planning; Partner with Data and Software teams on data ingestion, SQL and Python analysis, dashboards, and triage logic to convert confirmed mechanisms into leading indicators and proactive capture criteria; Establish FA methods, standard operating procedures, equipment requirements, and reporting templates, and build repeatable capability across Oura’s regional labs and CM partners; Present findings to engineering and quality leadership, clearly separating observation, hypothesis, confirmed mechanism, corrective action, and open risk

Requirements

7+ years of experience in a Product Quality, Failure Analysis or Manufacturing Quality Engineering role supporting electronic products; Bachelor’s degree in Electrical Engineering, Electronics Engineering, or a related technical discipline; Strong electrical engineering fundamentals across analog and digital circuits, power management, batteries and charging, sensors, clocks, PCBAs, flex circuits, solder joints, and component and interconnect failure behavior; Hands-on experience troubleshooting electronic products at board, subassembly, and component level using electrical measurement and structured fault isolation methods; Experience conducting or directing both non-destructive and destructive failure analysis, with sound judgment on what evidence must be captured before a unit is opened, modified, or sectioned; Experience interpreting schematics, layouts, bills of material, component designators, test limits, and electrical specifications; Experience with SQL, Python, JMP, Minitab, or comparable tools for data cleaning, hypothesis testing, commonality analysis, metric definition, and communicating uncertainty; Experience with consumer electronics, wearables, batteries, or other small, highly integrated products manufactured at high volume; Experience working with contract manufacturers and suppliers on process controls, inspection coverage, traceability, test systems, containment, and corrective action; Understanding of quality principles and tools such as GRR, SPC, FA/CA, 8D, FMEA, and DOEs; Understanding of how SMT, soldering, molding, handling, fixturing, test station design, and operator variation can create or mask electrical failures; Able to work independently on technically ambiguous problems while engaging Electrical Engineering, Firmware, Process Engineering, Reliability, Supplier Quality, and factory partners at the right time; Highly organized with the ability to maintain clear evidence trails and communicate complex technical conclusions through concise written reports, dashboards, and presentations; Willingness to travel domestically and internationally up to 40%

Nice to have

Advanced degree in Electrical Engineering, Electronics Engineering, or a related technical discipline; Experience building or operating an in-house failure analysis laboratory, or training technicians and factory partners to execute repeatable screening procedures

Benefits

Competitive salary and equity packages; Health, dental, vision insurance, and mental health resources; An Oura Ring of your own plus employee discounts for friends & family; 20 days of paid time off plus 13 paid holidays plus 8 days of flexible wellness time off; Paid sick leave and parental leave