# Stephen Dey

> Product Design/Mechanical Engineering at Ōura | ex-Apple

Location: San Rafael, California, United States
Profile: https://flows.cv/stephendey

## Work Experience
### Staff Mechanical / Product Design Engineer @ ŌURA
Jan 2025 – Present | San Francisco, California, United States

### Director / Head of Product Design Engineering @ Mila Cares
Jan 2022 – Jan 2025
- Led product development engineering at Series-A
startup in smart-home air quality
- Led international, distributed team including both FTEs and
contractors in ME, EE, firmware, industrial design
- Shipped 2 new air purifier products, including Air Mini (Esquire 2024 Best Gadget winner)
- Established & led cross-functional team to drive warranty and continuous quality
improvement efforts

### Product Design Manager / Lead Product Design Engineer - Vision Pro @ Apple
Jan 2017 – Jan 2022 | Cupertino, CA
TECHNOLOGY & DESIGN
- Drove PD team in product concept development, tech selection &
system architecture for first-of-kind devices with novel user interactions. 
- Drove cross-functional teams in developing proof-of-concepts for multiple new sensing technologies to enable products with new user interactions
- Spearheaded team in developing innovative analytic ergonomic
predictions and computational geometry techniques critical to defining key product geometry (chassis, lens, cushion, headband) for Vision Pro
- Sr. Engineer responsible for developing prescription insert lenses for Vision Pro
- Published over 25 patents to date

LEADERSHIP & PEOPLE
- Managed team of 6 engineers and led intern program for PD team
- Established specialty PD team for ergonomic design within Vision Pro group
- Established PD team for user-interaction development within Vision Pro group

### Senior Product Design Engineer - Watch @ Apple
Jan 2013 – Jan 2017 | Cupertino, CA
- Lead PD engineer for multiple generations, designs, & styles
bands for Apple Watch including Milanese Loop and Hermès
collaboration. Developed products from concept to production
with volume >10M
- Extensive work with suppliers and contract manufacturers across
more than 7 countries. Frequent travel to Asia to support
development & production
- High volume experience across manufacturing techniques
including: CNC, compression & injection molding, magnets, MIM,
stamping, laser welding, PVD coating, plating

### Mechanical Design Engineer @ Brechtel Manufacturing
Jan 2009 – Jan 2013
Lead engineer for state-of-the-art, climate research instruments
for aircraft and field deployment. Introduced 2 new products to
market.

Key Products:

Humidified Tandem Differential Mobility Analyzer (HTDMA) - Lead engineer responsible for preliminary CFD modeling, mechanical design, developed control and data acquisition software 

Scanning Electrical Mobility Analyzer (SEMS) - Provided continuing manufacturing support and design development for aerosol sizing instrument

Counterflow Virtual Impactor (CVI) - Fluid modeling of aircraft sampling probe, component design, developed data acquisition and control software

### Mechanical Design Team Member @ UC Davis Human Powered Vehicle
Jan 2003 – Jan 2008 | Davis, CA
- Designed a multi-stage reduction chain drivetrain for high-speed
recumbent bicycle
- Fabricated custom drivetrain components and composite low-
drag aerodynamic fairing
- Piloted vehicle to >50mph at the World Human Powered Speed
Challenge in Battle Mountain, NV

### Undergraduate Student Assistant @ UC Davis Materials Performance Lab
Jan 2008 – Jan 2008
Designed and constructed electronic and mechanical fixtures for use in material fatigue testing.


## Education
### BS in Mechanical Engineering/Materials Science
University of California, Davis


## Contact & Social
- LinkedIn: https://linkedin.com/in/stephen-dey

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Source: https://flows.cv/stephendey
JSON Resume: https://flows.cv/stephendey/resume.json
Last updated: 2026-04-13