Mechanical Engineer I

At WHOOP, we're on a mission to unlock human performance. WHOOP empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives. By delivering actionable insights and innovative hardware, WHOOP helps members achieve their goals and push the boundaries of human potential. As a Mechanical Engineer on the Hardware Advanced Development Team at WHOOP, you will contribute to the design and development of WHOOP’s innovative hardware solutions. You will push the boundaries of technology by driving product innovation from conceptual prototypes to manufacturing-ready designs. You’ll work alongside a multidisciplinary team of engineers and designers to help bring innovative concepts to life, supporting prototyping, mechanical design, and testing efforts. This is a great opportunity for an engineer with a solid technical foundation to grow their skills in a dynamic, fast-paced environment while contributing to impactful projects in early-stage product development. RESPONSIBILITIES: Contribute to mechanical design and development of early-stage projects to shape the future of WHOOP hardware. Design, prototype, and test complex mechanical components around microelectronics, meeting stringent technical, performance, and industrial design requirements to guide projects from concept through manufacturing release. Develop and present multiple design solutions for novel and complex technical challenges, articulating them clearly to cross-functional teams and documenting design process and specifications thoroughly. Support the design and execution of comprehensive testing and validation plans, employing advanced design of experiments (DOE) methodologies to drive understanding, uncover insights, and deliver actionable results that enhance product quality, performance, and manufacturability. Partner with the Hardware Product Team to lead engineering evaluation of new technologies, addressing risks that build confidence in NPI readiness. Operate and maintain in-house prototyping tools, including 3D printers and CNC machines, to create proof-of-concept prototypes and support early-stage development. Collaborate with senior engineers to evaluate new technologies and manufacturing methods. Up to 10% travel to contract manufacturers and suppliers. QUALIFICATIONS: Bachelor’s degree in Mechanical Engineering or related field. 0-3 years of experience in the design of complex mechanical products, preferably for consumer electronics, wearables, or medical devices. Experience with SolidWorks, or transferable CAD program Hands-on experience with rapid prototyping tools to craft proof-of-concept models. Strong communication skills and comfort working on cross-functional teams. Working understanding of SolidWorks best practices, including advanced assemblies, surfacing, configuration management and applying DFx feedback. Familiarity with validation testing methods and statistical analysis tools. Experience with high-volume manufacturing processes (e.g., injection molding, sheet metal design, metal injection molding) and manual assembly. Prior experience in high-quality consumer electronics or wearable technologies is preferred. 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 eligibility. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. The 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 $90,000 - $130,000. 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.