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Oura

Makes smart rings for sleep and recovery

Hardware Reliability Engineer

Hardware Validation & TestingConfirmed live in the last 24 hours
Full-timeSan Francisco, CA, USA

About the Job

Requirements

  • At least 5 years of experience in hardware reliability, validation, or test engineering within consumer electronics, wearables, or small electromechanical systems.
  • Ability to design and execute reliability tests, including defining stress conditions, aging, metrics, and acceptance criteria, rather than only running predefined tests.
  • Hands-on experience with mechanical, environmental, and electrical reliability programs.
  • Experience with failure analysis and data-driven decision-making.
  • Ability to interpret test data and communicate results clearly to cross-functional stakeholders.
  • Familiarity with industry reliability standards and methodologies.
  • Excellent written and verbal communication skills in English.

Responsibilities

  • Plan, document, and execute reliability testing for hardware products and accessories under established reliability frameworks.
  • Set up, coordinate, and review reliability testing activities with contract manufacturers and external test labs.
  • Develop, document, and improve reliability test methods for evolving wearable technologies and design challenges.
  • Support failure analysis and root cause investigations, working with design, Quality, and manufacturing teams to drive corrective actions.
  • Build test-to-field correlation for failure modes identified in reliability testing, ensuring lab test methods predict real-world product performance and refining test plans based on field learnings.
  • Perform Design Failure Mode and Effects Analysis (DFMEA) to identify potential risks and failure modes early in the design process and drive mitigation actions ahead of validation phases.
  • Create and maintain detailed test plans, reports, and documentation to ensure traceability, repeatability, and data integrity.
  • Partner with hardware, firmware, test engineering, and manufacturing teams to integrate reliability considerations throughout product development.
  • Analyze test and field data, summarize results, and communicate insights to support data-driven design decisions and continuous improvement.
  • Travel up to 15% to manufacturing locations and Finland.

Desired Qualifications

  • Experience with wearable or portable consumer devices, especially compact form factors with integrated electronics.
  • Experience working with contract manufacturers.
  • Experience conducting DFMEA or similar risk-identification methodologies, such as PFMEA or FRACAS, during early product development.
  • Bachelor's or Master's degree in Mechanical, Electrical, Materials, Reliability Engineering, or a related discipline.

About the Company

Oura

Makes smart rings for sleep and recovery

Oura designs smart rings and a companion app for people who want to understand their sleep, activity, stress, and recovery. Its ring measures signals such as heart rate, movement, and temperature while fitting into daily life without a screen on the wrist. The app turns these daily measurements into sleep and readiness scores, compares changes with a personal baseline, and suggests habits that support rest and activity. Oura sells rings through its website and retail partners, while paid memberships unlock detailed app insights and guidance beyond the basic scores. Founded in Finland in 2013, Oura is headquartered in San Francisco, United States.

Company size
1,001-5,000
Company stage
Series E
Total funding
$1.5B
Headquarters
San Francisco, CA
Founded
2013

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