O

Oura

Makes smart rings for sleep and recovery

Hardware Signal Quality Test Engineer

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

About the Job

Requirements

  • A bachelor's degree in Biomedical Engineering, Electrical Engineering, a related field, or equivalent practical experience.
  • At least 3 years of relevant hands-on experience in sensor testing, hardware validation, laboratory measurement, research, or a related engineering environment.
  • Working experience with Python for data analysis, test tooling, or automation, and willingness to continue developing these skills.
  • Basic familiarity with analog or digital signal analysis and processing.
  • Basic understanding of electronics, sensors, or embedded systems.
  • Ability to take ownership of scoped work, seek guidance when needed, and communicate results clearly to stakeholders.
  • Ability to work effectively across disciplines and time zones.
  • Strong problem-solving ability and an analytical approach to technical challenges.
  • Strong written and verbal communication skills.
  • Willingness and ability to travel to Oura sites and contract manufacturing facilities as needed.

Responsibilities

  • Contribute to sensor validation cycles for next-generation hardware products by executing defined test activities and helping evaluate signal quality across relevant sensor domains.
  • Contribute to test planning and adapt test methods and tools to evaluate physical and physiological signals, including motion, optical, electrical, and thermal signals.
  • Analyze sensor data and performance using Python and appropriate data-analysis methods, identifying patterns and extracting actionable insights.
  • Conduct hands-on testing in the lab and, where appropriate, real-world field environments; identify unexpected behavior and support root-cause investigations.
  • Deliver clear, data-driven reports and findings to cross-functional stakeholders, supporting hardware, algorithms, firmware, and product-quality decisions.
  • Contribute to improvements in test capabilities, documentation, automation, and reporting, helping establish repeatable sensor-validation practices at the San Francisco site.

Desired Qualifications

  • Knowledge of human physiology and physiological signals.
  • Experience with electronics and implementing different test fixtures.
  • Background in hardware testing and debugging, including software interfaces.
  • Familiarity with regulatory testing processes for medical or other wearable devices.

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

Recently Posted Jobs

Explore more opportunities at Oura

See more jobs