# Senior Mechanical Engineer (Apparel & Accessories)

**Company:** [WHOOP](https://hotfix.jobs/companies/whoop)
**Location:** Boston, MA
**Role:** Hardware Engineering
**Experience:** 6+ years
**Skills:** Solidworks, Creo, 3D Cad, DFM, Dfa, FEA, Tolerance Stack-Ups, Overmolding
**Posted:** 2026-04-15

> Leads mechanical design and development of wearable bands and accessories from concept to production, owning CAD modeling, material selection, and manufacturing processes. Requires 6+ years experience, BS in Mechanical Engineering, and proficiency in SolidWorks/Creo.

## Job Description

## 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.

## Qualifications
- 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.

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