Lightmatter

Staff Photonics Design Engineer

Boston, MA; Mountain View, CA · Staff+ · Full-time

Sponsorship not specified$200k-$225kDetected 5 days ago

PythonData AnalysisNLPValuationSystems EngineeringElectrical EngineeringCommunicationProblem Solving

About the role

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.

Design and optimize silicon photonic devices for laser systems, including couplers, muxes, rings, switches, and other active and passive components.
Work with the characterization team to develop and execute test plans for device validation, analyzing results to assess performance and troubleshoot issues.
Implement rigorous simulation, modeling, and testing methodologies to calibrate designs and optimize performance across manufacturing variability.
Engage in problem solving and contribute to new device designs and architectures.
In this role, you will design, layout, and test silicon photonics devices for an integrated and scalable laser system.You will collaborate closely with cross-functional teams including photonics, packaging, systems, and software to define and refine specifications, ensuring that all designs meet or exceed performance targets and align with product requirements.
You'll have the opportunity to build innovative laser solutions from the ground up and tackle groundbreaking challenges.
Work with people who love to build and who thrive in diverse technical environments where great ideas are prioritized.

PhD in Electrical Engineering, Physics, Photonics, or related discipline with 3 years of industry experience
Demonstrated track record of designing integrated silicon photonics components using Lumerical, Tidy3D, or equivalent
Proficiency in modeling and data analysis in Python
Experience with integrated lasers, SOAs

Experience doing layout with foundry PDKs
Experience with code-based GDS creation such as GDS Factory or similar
Experience with optical and electronic test equipment, wafer-level testing and statistical data analysis (e.g., optical spectrum analyzers, tunable lasers, OBR/OVA, oscilloscopes, BERT).
Strong project execution skills, with the ability to handle multiple priorities and meet project milestones.

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.
$200,000 - $225,000 USD

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
Commuter Benefits
Equity grants (applicable to full-time employees)
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.
Flexible, hybrid workplace model

This listing is sourced directly from Lightmatter's careers page and normalized into a canonical job model.