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ashby

Senior Radio Frequency Engineer

Whoop
Boston, USA
Full-time
Senior · 5+ years experience
Onsite
Discovered 3 weeks ago
matlabpython

Full Job Posting

Responsibilities

  • Own RF system characterization, validation, and debugging from early prototypes through production.
  • Define validation plans, test methods, and acceptance criteria for conducted, radiated, and system-level wireless performance.
  • Characterize transmitter, receiver, antenna, coexistence, interference, desense, and OTA performance, including return loss, antenna efficiency, TRP/TIS, and on-body performance as applicable.
  • Develop repeatable test setups, fixtures, scripts, and automated measurement methods to improve validation coverage, efficiency, and data quality.
  • Analyze RF performance data, identify failure modes and root causes, and drive corrective actions with Electrical, Firmware, Mechanical, and Manufacturing teams.
  • Guide RF-critical schematic and PCB design, including matching networks, grounding, shielding, routing, component selection, and antenna integration.
  • Apply RF circuit, electromagnetic, and system analysis using tools such as CST, HFSS, MATLAB, Python, or similar tools.
  • Establish production test methods, limits, and correlation studies while supporting manufacturing troubleshooting and wireless regulatory certification.
  • Advance next-generation RF architectures, antenna technologies, validation methods, and manufacturing techniques while communicating technical risks and recommendations across engineering teams.
  • Travel up to 15%, domestically and internationally.

Qualifications

  • BS or higher in Electrical Engineering or related field.
  • 5+ years of relevant RF or wireless engineering experience.
  • Demonstrated expertise in RF system characterization, validation, debugging, and root-cause analysis.
  • Background in conducted and radiated wireless testing, including transmitter performance, receiver sensitivity, antenna performance, coexistence, and desense.
  • Hands-on proficiency with RF lab equipment, including spectrum analyzers, signal generators, VNAs, oscilloscopes, wireless communication testers, and calibration tools.
  • Familiarity with antenna and OTA measurements, including return loss, efficiency, radiation performance, TRP, and TIS.
  • Strong command of RF and electrical engineering principles, including impedance matching, transmission lines, circuit design, PCB layout, grounding, shielding, and antenna integration.
  • Working knowledge of RF test automation, data analysis, or electromagnetic simulation using tools such as Python, MATLAB, LabVIEW, CST, or HFSS.
  • Excellent communication skills, with experience supporting product validation, manufacturing, and wireless regulatory certification.
  • Strong commitment to embracing and leveraging AI tools in day-to-day tasks, ensuring AI-assisted work aligns with the same high-quality standards as personal contributions.
  • This role is based in the WHOOP office located in Boston, MA. The successful candidate must be prepared to relocate if necessary to work out of the Boston, MA office.
  • Interested in the role, but don’t meet every qualification? We encourage you to still apply! At WHOOP, we believe there is much more to a candidate than what is written on paper, and we value character as much as experience. As we continue to build a diverse and inclusive environment, we encourage anyone who is interested in this role to apply.
  • WHOOP is an Equal Opportunity Employer and participates in E-verify to determine employment eligibilityThe WHOOP compensation philosophy is designed to attract, motivate, and retain exceptional talent by offering competitive base salaries, meaningful equity, and consistent pay practices that reflect our mission and core values.
  • At WHOOP, we view total compensation as the combination of base salary, equity, and benefits, with equity serving as a key differentiator that aligns our employees with the long-term success of the company and allows every member of our corporate team to own part of WHOOP and share in the company’s long-term growth and success.
  • The U.S. base salary range for this full-time position is $140,000 - $195,000. Salary ranges are determined by role, level, and location. Within each range, individual pay is based on factors such as job-related skills, experience, performance, and relevant education or training. In addition to the base salary, the successful candidate will also receive benefits and a generous equity package. These ranges may be modified in the future to reflect evolving market conditions and organizational needs. While most offers will typically fall toward the starting point of the range, total compensation will depend on the candidate’s specific qualifications, expertise, and alignment with the role’s requirements.

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