# Staff High-Speed I/O Test 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: 2026-07-14
- Apply by: 2026-10-08
- Apply: https://boards.greenhouse.io/lightmatter/jobs/5351725008?gh_jid=5351725008
- Page: https://www.1752.vc/careers/jobs/lightmatter-staff-high-speed-i-o-test-engineer/

## About the role

You will be focused on validating and architecting package and system-level test strategies for high-speed I/O interfaces on Lightmatter’s novel product line. In this role, you will be responsible for setting up and executing high-speed electrical characterization, driving link bring-ups, and stress-testing I/Os in system environments.

## What they're looking for

- Master’s in Electrical Engineering, Computer Engineering, or a related field
- 6+ years of industry experience in transceiver, SerDes, or high-speed link test development on products
- Extensive hands-on lab experience and familiarity with high-speed equipment, including oscilloscopes, BERTs, PPGs, VNAs, and spectrum analyzers
- Strong familiarity with high-speed interfaces and analog building blocks (e.g., PLL, CDR, CTLE, DFE, FFE, and FEC)
- Experience in test system automation and data processing using Python
- Strong analytical and debugging skills to identify and solve hardware and signal integrity issues during the testing process

Tags: Product Engineering