Lightmatter

Electro-Optic Link Hardware Engineer

Lightmatter • $155K — $190K *
Telecommunications & Hardware
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • MS/PhD in EE, Photonics, or Physics (8+ yrs) or BS/MS (10+ yrs)
  • Proven leadership in verification strategy for silicon/system programs
  • Expertise in high-speed serial links (56G/112G/224G+) and signal integrity
  • Hands-on lab experience in resolving complex hardware issues
  • Strong skills in Python/MATLAB for automation framework development
  • Familiarity with key lab tools (VNA, scopes, BERTs, TDRs) and simulation software

Responsibilities

  • Conduct hands-on lab characterization and debugging of high-speed hardware
  • Develop system-level channel models and validate against bench measurements
  • Manage link budget and verification methodologies through direct measurement
  • Characterize key signal parameters (eye diagrams, BER, jitter)
  • Assist in silicon bring-up and troubleshoot issues with cross-functional teams
  • Guide architectural decisions based on lab findings
  • Mentor engineers while actively engaging in lab work
  • Create automation tools to enhance characterization efficiency

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 Opportunities
  • Commuter Benefits
  • Flexible, hybrid workplace model
  • Equity grants for full-time employees
Full Job Description
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. 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. $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) Benefits eligibility may vary depending on your employment status and location.

About Lightmatter

Industry
Founded
2017

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