Lightmatter
Staff /Sr Staff Laser Module & Systems Characterization Engineer
Mountain View, CA · Staff+ · Full-time
Sponsorship not specified$187k-$240kDetected 49 days ago
PythonMATLABData EngineeringValuationElectrical EngineeringResearchCommunicationProblem SolvingFiber Optics
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odds of building a lasting career here
53Sponsors, lottery-bound
Cap-exempt (no lottery)0
Sponsors this role58
Entry-level history0
PERM / green-card track0
Lottery odds (Level IV)94
Fits your clock70
Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.
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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.
Responsibilities
- Lead optical performance optimization (OPO) and initial bring-up for Guide ™ Laser modules
- Develop and own the bringup-to-eVT hand-off package: measurement summary, pass/fail criteria, and known-good reference data.
- Own characterization campaigns involving Guide and Passage based optical links, including end-to-end link validation, channel optimization, and margin verification through the lens of Laser/Guide systems. Identify and operate to resolve link-level anomalies
- Develop structured manufacturing and characterization test plans aligned to photonics-control specs
- define measurement protocols, calibration sequences, and acceptance criteria. Collaborate with control engineers to ensure test plan data supports algorithm validation and production deployment.
- Write and maintain Python or MATLAB measurement automation scripts for optical, electrical, and thermal test sequences
- build data pipelines to surface yield signatures and process trends.
- Partner with the team on laser-safety interlock validation and controller characterization flows.
- Lead optical performance optimization (OPO) and initial bring-up for Guide ™ Laser modules; define and execute bring-up sequences from unpowered to full operating condition.
- Own characterization campaigns involving Guide and Passage based optical links, including end-to-end link validation, channel optimization, and margin verification through the lens of Laser/Guide systems.
Requirements
- BS + 8 years, MS + 6 years, or PhD + 3 years in Electrical Engineering, Physics, Optical Engineering, Photonics, or a closely related field.
- Proficiency with core photonics lab equipment: optical spectrum analyzers (OSA), optical power meters, lightwave component analyzers (LCA), high-bandwidth oscilloscopes, and signal generators.
- Proficiency with Python or MATLAB scripting for measurement automation and statistical data analysis.
- Familiarity with statistical process control (SPC), gauge R&R, or JMP for production yield analysis.
- This role requires strong laboratory experience in integrated photonics and fiber optics, as well as expertise in photonics and electronics testing, and data analysis.
Nice to have
- Experience with laser module NPI, EVT, or manufacturing bring-up workflows
- familiarity with hand-off packages to production.
- Background in TEC/thermal control loops, laser safety interlock systems, or photonics control-style calibration flows.
- Familiarity with optical link budgets and system-level characterization
- experience operating multi-channel photonic integration platforms.
- Experience with high-speed and optical link characterization methodologies is a plus.
- Hands-on experience characterizing laser modules (DFB lasers, optical amplifiers, and other coherent sources) in a research or NPI environment with experience with DWDM optical link bring-up and validation as a plus.
Compensation
- 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.
- $187,000 - $240,000 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
- 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
Company info
- We are looking for a Laser Characterization Engineer to join our Laser team.
Visa & Work Authorization
- Export Control
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