# Mechanical Design Engineer at Pacific Fusion

- Company: Pacific Fusion
- What the company does: Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy. Backed by General Catalyst and Lightspeed.
- Company website: https://www.pacificfusion.com/
- Type: Startups
- Level: Mid level
- Location: San Leandro, CA
- Work setup: On-site
- Posted: 2026-05-04
- Apply by: 2026-10-08
- Apply: https://job-boards.greenhouse.io/pacificfusion/jobs/4051088009
- Page: https://www.1752.vc/careers/jobs/pacific-fusion-mechanical-design-engineer/

## About the role

Design and analyze large, high-performance vacuum seals for water-to-air, air-to-high-vacuum, and water-to-high-vacuum transitions Lead experimental design and testing in collaboration with internal teams, external vendors, and academic partners

## What they're looking for

- Bachelor's or Master's degree in Mechanical, Aerospace, or a related engineering field, or equivalent experience
- 5+ years of mechanical design experience with a focus on vacuum seals and systems, including rough, high, and ultra-high vacuum environments
- Strong proficiency in CAD, FEM, and engineering analysis tools
- Proven expertise in tolerance analysis, FMEA, seal design, and mechanical integration

Tags: Target Area Engineering