L
Lightmatter
Electro-Optic Link Hardware Engineer
Skills
PythonMATLABMachine Learning
1 month ago
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Important information
Salary:
$155,000 – $190,000 / year
Location:
San Francisco, CA, USA
Work mode:
Onsite
Published on:
14 October 2026
What they need
Who you are
- 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
- We're looking for a hands-on Photonics engineer to lead verification and characterization of high-speed electro-optic links across multiple silicon and system programs
- You'll work at the bench alongside the EOE team owning modeling methodology, measurement standards, and serving as the escalation point for the toughest signal integrity and link-performance problems in the org
- MS/PhD in EE, Photonics, Physics (8+ yrs) or BS/MS (10+ yrs)
- Ownership of verification strategy for a full silicon/system program
- Deep expertise in 56G/112G/224G+ serial links, SerDes equalization (CTLE/FFE/DFE), and signal integrity (S-parameters, crosstalk, link budgets)
- Hands-on lab experience leading investigations that stalled others
- Strong Python/MATLAB for team-used automation frameworks
- Proficiency with VNA, scopes, BERTs, TDRs, and tools like ADS, HFSS, Cadence, COMSOL
- Track record mentoring engineers
- Silicon photonics/EO systems at the architecture level
- Package/PCB/channel co-design ownership
- COM/IBIS-AMI modeling, patents/standards contributions (OIF, IEEE 802.3)
What the job involves
- Run hands-on lab characterization and debug of high-speed electrical/optical hardware, including novel failure modes
- Build system-level electrical/optical/EO channel models and correlate them against your own bench measurements
- Own link budget and verification methodology while staying hands-on with the validating measurements
- Characterize eye diagrams, BER, jitter, equalization, and channel impairments
- Support silicon bring-up and root-cause debug with analog, package, PCB, and SerDes teams
- Influence chip/package/system architecture tradeoffs based on bench findings
- Mentor Senior/Staff engineers without stepping back from lab work
- Build automation/tools to speed up characterization work
Benefits
- Commuter benefit
- Happy hour -Spend time together and build friendships
- Generous vacation policy and holidays
- 401(K)
- Opportunity to learn from your peers and teach them what you know across electronics, photonics, machine learning, and more
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