# Mechanical Engineer II

**Company:** [WHOOP](https://hotfix.jobs/companies/whoop)
**Location:** Boston, MA
**Role:** Hardware Engineering
**Experience:** 3+ years
**Skills:** Solidworks, Cad Modeling, Tolerance Analysis, Mechanical Drawing Creation, Injection Molding, Sheet Metal Fabrication, Silicones, Textiles, Elastomers, Plastics, DFM, Dfa, FEA, Rapid Prototyping, Environmental Testing
**Posted:** 2026-06-09

> Mechanical Engineer II owning end-to-end design of WHOOP wearable bands and accessories from concept through production, collaborating with ID, EE, and manufacturing teams. Requires 3-4 years experience and SolidWorks proficiency.

## Job Description

## 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.

## Requirements
- 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.

## Nice-to-Haves
- Experience working with offshore manufacturing partners.
- Knowledge of wearables, sports/fitness accessories, or human factors engineering.
- Familiarity with FEA tools, rapid prototyping, and environmental testing.

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