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Whoop

Makes screenless trackers for sleep and recovery

Senior Embedded Engineer

Embedded EngineeringConfirmed live in the last 24 hours
Full-timeBoston, MA, USA

About the Job

Requirements

  • A bachelor's or master's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field.
  • At least five years of embedded firmware development experience.
  • Strong experience using electronics debugging tools, including oscilloscopes, multimeters, power supplies, and logic analyzers.
  • Proficiency in device driver development and 32-bit RISC architectures such as ARM Cortex.
  • Proficiency in C/C++ programming.
  • Strong understanding of electrical engineering fundamentals, including the ability to read schematics and hardware specifications.
  • Experience working with operating systems and real-time operating systems.
  • Strong understanding of system communication protocols, including I2C, SPI, USART/UART, and BLE.
  • Experience with version control using git and modern CI/CD workflows.
  • Experience with unit, integration, and functional testing for embedded systems.
  • Experience with Agile software development practices.
  • Must be prepared to relocate if necessary to work from the Boston, Massachusetts office.

Responsibilities

  • Develop and test firmware in C for WHOOP products, including features optimized for low-power performance.
  • Own complex firmware features and ensure they meet performance, power, and reliability goals.
  • Debug and resolve challenging issues across software, hardware, manufacturing, and system integration.
  • Define, write, and maintain technical requirements and documentation.
  • Participate in code reviews to ensure clarity, correctness, and adherence to coding standards.
  • Design and improve firmware self-tests, validation tools, CI workflows, and internal development tools.
  • Support electrical development by evaluating components, bringing up drivers, and contributing to hardware design discussions.
  • Leverage AI as a development tool and share learnings with the team.
  • Collaborate with Electrical, Signal Processing, Mobile, and Manufacturing teams to validate designs and refine interfaces.
  • Mentor teammates on design, implementation, and debugging.
  • Identify opportunities to improve performance, power efficiency, stability, and reliability across the firmware platform.

Desired Qualifications

  • Experience working on high-volume consumer electronics products.

About the Company

Whoop

Makes screenless trackers for sleep and recovery

Whoop makes a screenless wristband that tracks sleep, exercise strain, and recovery around the clock, and it sells the band to athletes and everyday users only as part of a membership. In 2020, the PGA Tour gave Whoop straps to players and caddies after one golfer's data flagged his COVID-19 infection before he had symptoms. The band records heart rate, the variation between beats, skin temperature, and blood oxygen, and the app turns those readings into daily scores and advice on when to push or rest. Members pay a yearly fee that covers the band, with pricier tiers adding heart-rhythm and blood pressure readings, and Whoop also sells blood tests. Whoop was founded in 2012 at Harvard's startup lab and is based in Boston.

Company size
1,001-5,000
Company stage
Series G
Total funding
$979.8M
Headquarters
Boston, MA
Founded
2012

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