Lightmatter

Electro-Optic Link Hardware Engineer

Lightmatter$195K — $250K *
Telecommunications & Hardware
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • MS/PhD in EE, Photonics, Physics (8+ yrs) or BS/MS (10+ yrs)
  • Proven experience in leading verification strategies for silicon/system programs
  • In-depth knowledge of 56G/112G/224G+ serial links and SerDes equalization techniques
  • Hands-on lab experience addressing complex issues that have stalled progress
  • Strong programming skills in Python/MATLAB for automation initiatives
  • Familiarity with VNA, scopes, BERTs, TDRs, and simulation tools like ADS, HFSS, Cadence, COMSOL
  • Experience in mentoring junior staff and engineers

Responsibilities

  • Conduct hands-on lab characterization and troubleshooting of high-speed electrical/optical hardware
  • Develop system-level electrical/optical/EO channel models, correlating them with measurements
  • Oversee link budget management and verification processes
  • Characterize performance parameters such as eye diagrams, BER, jitter, and channel impairments
  • Assist in silicon bring-up and root-cause analysis with analog and PCB teams
  • Negotiate architecture tradeoffs based on laboratory findings and insights
  • Mentor Senior/Staff engineers while actively engaging in lab activities
  • Create tools and automation to streamline characterization efforts

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 programs
  • Commuter Benefits
  • Flexible, hybrid workplace model
  • Equity grants for full-time employees
Full Job Description
We9re looking for a hands-on Photonics engineer to lead verification and characterization of high-speed electro-optic links across multiple silicon and system programs. You9ll 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.

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)


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.

$195,000-$250,000 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)

About Lightmatter

Industry
Founded
2017

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