# Senior Laser & SOA Characterization 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: Senior
- Location: Mountain View, CA
- Work setup: On-site
- Posted: 2026-07-02
- Apply by: 2026-10-08
- Apply: https://boards.greenhouse.io/lightmatter/jobs/5287958008?gh_jid=5287958008
- Page: https://www.1752.vc/careers/jobs/lightmatter-senior-laser-and-soa-characterization-engineer/

## About the role

We are hiring a senior engineer for our Photonics Characterization team at Lightmatter. Lightmatter is redefining computing by building photonic systems that use light to enable high-bandwidth, energy-efficient AI computing.

## What they're looking for

- PhD or Master’s degree in Electrical Engineering, Physics, Applied Physics, Photonics, Optics, or a related technical field
- 5+ years of hands-on experience in semiconductor laser, SOA, photonics, or optical device characterization
- Strong understanding of semiconductor laser physics, optical gain, carrier dynamics, rate equations, thermal effects, feedback sensitivity, linewidth, RIN, and optical noise mechanisms
- Deep hands-on experience with optical and electro-optical lab measurements
- Strong understanding of semiconductor optical amplifiers, including gain, saturation behavior, ASE, noise, carrier dynamics, polarization dependence, wavelength dependence, and thermal effects
- Strong Python programming experience for instrument automation, data analysis, plotting, statistical analysis, and automated reporting

Tags: Photonics & Silicon Engineering