Senior Electro-Optic Link Engineer — Hybrid + Equity

Lightmatter; Boston (MA); Hybrid; USD 150,000 - 207,000; Full time

Benefits offered by this job

Health Care Plan

Retirement Savings Matching

Life Insurance

Generous Time Off

Paid Family Leave

Disability Insurance

Training & Development

Commuter Benefits

Hybrid workplace

Equity grants

Job summary

Lightmatter is seeking a hands-on Photonics engineer to lead verification of high-speed electro‑optic links across silicon and system programs. You will own modeling methodology, measurement standards, and act as the escalation point for signal integrity challenges.

You will mentor engineers, build bench models, and develop automation that speeds up characterization across multiple teams. This hybrid role in Boston offers equity and growth in AI data center photonics.

Qualifications

• Requires MS/PhD in EE, Photonics or Physics with 8+ years, or BS/MS with 10+ years.
• Ownership of verification strategy for a full silicon/system program.
• Deep expertise in 56G/112G/224G+ serial links and SerDes/CI.
• Hands-on lab investigations and problem solving for tough failures.
• Strong Python/MATLAB for automation in team projects.
• Experience with VNA, scopes, BERTs, TDRs and tools like ADS, HFSS, Cadence, COMSOL.

Responsibilities

• Run hands-on lab characterization and debug of high-speed hardware.
• Build system-level models and compare with bench measurements.
• Own link budget and verification methodology while bench testing.
• Characterize eye diagrams, BER, jitter, equalization, channel impairments.
• Support silicon bring-up with multiple teams (analog, package, PCB, SerDes).
• Influence architecture tradeoffs based on bench findings.
• Mentor Senior/Staff engineers while remaining hands-on in lab.
• Develop automation/tools to speed up characterization work.

Skills

Serial links expertise

Python/MATLAB automation

Mentoring engineers

Verification strategy ownership

Signal integrity (S-parameters)

Lab characterization

Education

MS/PhD in EE, Photonics or Physics

BS/MS with 10+ years

Tools

ADS

HFSS

Cadence

COMSOL

VNA

Oscilloscopes

Job description

Lightmatter is seeking a hands-on Photonics engineer to lead verification of high-speed electro‑optic links across silicon and system programs. You will own modeling methodology, measurement standards, and act as the escalation point for signal integrity challenges.

You will mentor engineers, build bench models, and develop automation that speeds up characterization across multiple teams. This hybrid role in Boston offers equity and growth in AI data center photonics.