# Mechanical Design Engineer at Lightmatter

- Company: Lightmatter
- What the company does: Rethinking the limits of AI, Lightmatter merges photonics and computing to build a future where speed, efficiency, and intelligence converge. Backed by GV.
- Company website: https://lightmatter.co
- Type: Startups
- Level: Mid level
- Location: Mountain View, CA
- Work setup: On-site
- Posted: 2026-05-13
- Apply by: 2026-10-08
- Apply: https://boards.greenhouse.io/lightmatter/jobs/5208190008?gh_jid=5208190008
- Page: https://www.1752.vc/careers/jobs/lightmatter-mechanical-design-engineer/

## About the role

If you're passionate about tackling complex challenges, making an impact, and being an expert in your craft, join our team of brilliant scientists, engineers, and accomplished industry leaders.

## What they're looking for

- BS or MS in Mechanical Engineering or a related field
- Minimum of 3 years of mechanical design experience in semiconductor packaging, optoelectronics, or photonics modules
- Proficiency in CAD tools such as Solidworks or Creo, with a focus on mechanical design best practices
- Expertise in Geometric Dimensioning and Tolerancing (GD&T) and tolerance stack-up analysis
- Manage prototype builds with external vendors, validating the designs, and ensuring the scalability to high volume manufacturability
- Working knowledge of semiconductor packaging technologies, including the mechanical and thermal trade-offs of 3D, 2.5D, and FCBGA architectures

Tags: Photonics Packaging Engineering