Electro-Optic Link Hardware Engineer
- Pay
- $155,000 – $190,000 per year
- Location
- Mountain View, CA · Hybrid
- Job type
- Full-time
- Level
- Director
- Experience
- 8+ years
- Education
- Master's degree
- Listed
- 30 days ago
Skills & highlights for this role
- Export control compliance
- SerDes equalization
- signal integrity analysis
- VNA
- BERT measurement
- link budget analysis
Also useful
- COM/IBIS-AMI modeling
- HFSS
- Cadence
Stated benefits & perks
- Health
- Dental
- Vision
Responsibilities
- 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
Qualifications
- 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
Preferred Qualifications
- 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)
Pay and benefits
We offer competitive compensation. The base salary range for this role determined based on location, experience, educational background, and market data.
Salary Range
total compensation goes beyond base salary, it also includes a new hire equity grant, annual performance-based equity, and other rewards that recognize your impact and contribution.
$155,000—$190,000 USD
Benefits
- Comprehensive Health Care Plan (Medical, Dental & Vision)
- Retirement Savings Matching Program
- Life Insurance (Basic, Voluntary & AD&D)
- Generous Time Off (Vacation, Sick & Public Holidays)
- Paid Family Leave
- Short Term & Long Term Disability
- Training & Development
- Commuter Benefits
- Flexible, hybrid workplace model
- Equity grants (applicable to full-time employees)
Export Control
Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.
About Lightmatter
Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The company invented the world's first 3D-stacked photonics engine, Passage™, capable of connecting thousands to millions of processors at the speed of light in extreme-scale data centers for the most advanced AI and HPC workloads.
Lightmatter raised $400 million in its Series D round, reaching a valuation of $4.4 billion. We will continue to accelerate the development of data center photonics and grow every department at Lightmatter!
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.
Lightmatter is (re)inventing the future of computing with light!
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.
Equal opportunity and legal notices
Benefits eligibility may vary depending on your employment status and location. Lightmatter recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law.
From Lightmatter's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.
How Rolev.ai helps with this application
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Common questions
What is the salary for the Electro-Optic Link Hardware Engineer role at Lightmatter?
The Electro-Optic Link Hardware Engineer posting at Lightmatter states compensation of $155,000 – $190,000 per year. It is listed as a full-time position. Final pay may depend on location, experience, and interview evaluation on Lightmatter's official career site.
Where is the Electro-Optic Link Hardware Engineer job at Lightmatter located?
This Electro-Optic Link Hardware Engineer position at Lightmatter is located in Mountain View, CA (Hybrid). Always check Lightmatter's application page for specific state eligibility or relocation policies.
What qualifications are required for Electro-Optic Link Hardware Engineer at Lightmatter?
For the Electro-Optic Link Hardware Engineer role, Lightmatter highlights 8+ years of relevant experience; a master's degree; experience with SerDes equalization, signal integrity analysis, VNA, BERT measurement, link budget analysis. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.
How do I apply for the Electro-Optic Link Hardware Engineer position at Lightmatter?
This listing links directly to Lightmatter's Greenhouse application page. You can apply directly on Lightmatter's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Greenhouse application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.