Mechanical Engineer II (NPI, Apparel & Accessories)

At WHOOP, we’re on a mission to unlock human performance and healthspan. As a member of the Mechanical Engineering Apparel & Accessories team, you’ll help shape the future of wearable technology by developing innovative, high-performance products that integrate seamlessly into users’ lives. WHOOP operates with urgency because our mission demands it. We build products for people who push their limits—and we hold ourselves to the same standard. We expect engineers to go deep technically, collaborate relentlessly, and take pride in execution. The pace is fast, expectations are high, and the work is deeply meaningful. This isn’t a role where you follow a blueprint. If you’re energized by complex challenges, cross-functional collaboration, and the opportunity to ship hardware at scale, this role will push you—and reward you. We are seeking a talented and driven Mechanical Engineer II to own the mechanical design and development of next-generation WHOOP bands and wearable accessories. This individual will play a critical role in creating robust, scalable, and manufacturable hardware solutions that meet the needs of a fast-paced and highly collaborative product development environment. 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 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 $110,000-$150,000. 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. RESPONSIBILITIES: Own the end-to-end mechanical design of new WHOOP bands and related wearable accessories, from concept through production. Collaborate closely with cross-functional teams including Industrial Design, Electrical Engineering, Product, and Manufacturing to develop user-centric, durable, and manufacturable solutions. Create and manage detailed CAD models, assemblies, and 2D drawings to support prototyping and production. Own and drive second sourcing initiatives for mechanical components and assemblies to diversify the supply base and reduce manufacturing risk. Collaborate with product marketing to support seasonal product launches. Perform root-cause analysis and implement design improvements for quality, reliability, and performance enhancements. Support prototype builds, testing, and validation both in-house and at global manufacturing partners. Contribute to the development of material specifications, DFM/DFA guidelines, and mechanical standards for wearable devices. Support and mentor junior team members and share best practices within the engineering organization. Up to 20% international travel to contract manufacturers and suppliers. QUALIFICATIONS: B.S. in Mechanical Engineering or related field. 3 - 4 years of experience in mechanical design, preferably in consumer electronics, wearables, or soft goods design. Strong proficiency in SolidWorks, tolerance analysis, and mechanical drawing creation. Experience with soft goods integration, injection molding, sheet metal fabrication, and materials like silicones, textiles, elastomers, and plastics. Familiarity with second sourcing, supplier qualification, and risk mitigation strategies in manufacturing. Strong communication and organizational skills with the ability to work effectively across disciplines and time zones. Passion for product development and attention to detail. Experience working with offshore manufacturing partners preferred. Knowledge of wearables, sports/fitness accessories, or human factors engineering preferred. Familiarity with FEA tools, rapid prototyping, and environmental testing preferred.

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