Whoop - Senior Mechanical Engineer (Apparel & Accessories)
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Requirements
• B.S. in Mechanical Engineering or related field; M.S. a plus. • 6+ years of mechanical design experience, with ownership of multiple products through full development cycles. Must demonstrate deep technical fluency in end-to-end product development, including concept creation, prototyping, design iteration, DFM/DFA, EVT/DVT/PVT, and production support. • Strong proficiency in 3D CAD (e.g., SolidWorks, Creo) for both concept modeling and detailed production-level design; experience with tolerance stack-ups and drawing standards required. • Extensive experience with a range of materials and processes, including plastics, silicones, textiles, elastomers, metals, and overmolding; prior work integrating soft goods and electronics is highly desirable. • Proven success working with and managing global suppliers and manufacturers, including qualification and ramp-up support. • Demonstrated ability to lead cross-functional initiatives and influence decision-making across teams. Excellent communication and organizational skills; ability to balance technical depth with strategic execution. • 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. • 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.
Responsibilities
• Lead the mechanical design of new WHOOP bands and accessories from initial concept through production ramp, owning form, fit, and function of critical components. • Drive product architecture decisions in partnership with Industrial Design, Electrical Engineering, Product Management, and Operations to ensure robust, user-centered solutions. • Create and manage high-fidelity CAD models, assemblies, and detailed 2D documentation for both internal design reviews and external manufacturing partners. • Spearhead second sourcing and dual tooling efforts for critical mechanical components to ensure supply chain resilience and reduce manufacturing risk. • Define and execute validation test plans; apply root-cause analysis to field and manufacturing issues and implement design improvements. • Provide technical leadership during design reviews, manufacturing builds, and supplier engagements, both domestic and international. • Establish and maintain material specifications, DFM/DFA standards, and mechanical design best practices within the team. • Mentor junior engineers, sharing expertise in mechanical design, prototyping, and cross-functional product development. • Up to 20% travel to contract manufacturers and suppliers.
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