Senior Photonics Link Verification Engineer

Lightmatter; Mountain View (CA); Hybrid; USD 155,000 - 190,000; Full time

Benefits offered by this job

Health Care Plan

Retirement Savings Matching

Equity grants

Hybrid workplace

Training & Development

Commuter Benefits

Job summary

Lightmatter is seeking a hands-on Photonics engineer to lead verification and characterization of high-speed electro-optic links across silicon programs. You will own measurement standards, build models, and mentor engineers while solving tough signal integrity challenges in a lab setting.

Based in Mountain View, CA, this role offers a competitive base salary with equity, and a flexible, hybrid work model in a fast-growing company redefining AI data center photonics.

Qualifications

• MS/PhD in EE, Photonics, Physics with 8+ years, or BS/MS with 10+ years.
• Ownership of verification strategy for a full silicon/system program.
• Deep expertise in high-speed serial links and signal integrity.

Responsibilities

• Run hands-on lab characterization and debugging of high-speed hardware.
• Build models and correlate them with bench measurements.
• Own link budget and verification methodology while validating measurements.
• Characterize eye diagrams, BER, jitter, equalization, and channel impairments.
• Support silicon bring-up and root-cause debug with multiple teams.
• Influence architecture tradeoffs based on bench findings.
• Mentor engineers while remaining active in lab work.
• Build automation/tools to speed up characterization.

Skills

Serial links 56G/112G/224G+

SerDes equalization

Signal integrity

Python

MATLAB

Mentoring

Education

MS/PhD in EE/Photonics

BS/MS with 10+ years experience

Tools

ADS

HFSS

Cadence

COMSOL

VNA

TDRs

Job description

Lightmatter is seeking a hands-on Photonics engineer to lead verification and characterization of high-speed electro-optic links across silicon programs. You will own measurement standards, build models, and mentor engineers while solving tough signal integrity challenges in a lab setting.

Based in Mountain View, CA, this role offers a competitive base salary with equity, and a flexible, hybrid work model in a fast-growing company redefining AI data center photonics.