Lightmatter
Sr Staff Integrated Photonics Laser Systems Architect
Boston, MA; Mountain View, CA · Staff+ · Full-time
Sponsorship not specified$212k-$320kDetected 2 days ago
PythonAlgorithmsDesign SystemsValuationSystems EngineeringElectrical EngineeringLeadershipCommunicationProblem Solving
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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
- 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.
Responsibilities
- Define and own the Guide laser architecture, from concept through high-volume production
- Define and own the Data-SOA architecture in Lightmatter's optical links
- Deliver laser module architecture specifications and work closely with hardware and software teams to define functionality, interfaces, and documentation
- Actively collaborate with Lightmatter Passage team to drive alignment between Guide and Passage product architectures
- Engage in problem-solving to develop innovative high-performance laser solutions
- Actively collaborate across disciplines-with electronics, photonics, mechanical, and thermal engineering teams-to design systems, control algorithms, PICs, and PMICs that meet performance, power, and production requirements
- Validate architectures, models, and specifications via hands-on testing of dies, prototype assemblies, and packaged modules
- Collaborate with test engineers and technicians to define production test and validation protocols, as well as to analyze and debug test results
Requirements
- 8+ years of hands-on experience in optical devices, PICs, and semiconductor physics, with a track record of architecting laser or optical transceiver solutions from concept to volume manufacturing
- Expertise in mathematical modeling and simulation utilizing Python for link budget modeling, corner evaluation, and Monte Carlo simulations
- Strong analytical problem-solving skills with a proven capacity to tackle ambiguous, open-ended engineering challenges
Nice to have
- Experience architecting lasers for datacom applications, such as external or integrated laser sources feeding CPO or optical I/O engines
- Experience with semiconductor optical amplifiers in datacom links: gain, noise figure, saturation, pattern effects and cross-gain modulation in WDM, and III-V/silicon heterogeneous SOA integration
- Solid foundation in semiconductor laser physics (comb sources, DFB, ECLs, RIN, linewidth, and thermal/wavelength locking) alongside silicon photonics integrated circuits
- Experience with wavelength locking, thermal tuning and power-control loops, co-simulated against physical models
- Experience with silicon photonics circuit simulations
- Experience taking products into a high-volume manufacturing environment, including laser reliability and eye-safety qualification
- Demonstrated technical leadership of a cross-functional team
- Contributions to optical standards bodies (OIF, IEEE 802.3, MSAs), publications and patents
Skills
- Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress.
- Lightmatter raised $400 million in its Series D round, reaching a valuation of $4.4 billion.
- Lightmatter is (re)inventing the future of computing with light!
- For Data-SOA, it means gain and placement in the link, multi-wavelength amplification, and bias and gain control.
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.
- $212,000 - $320,000 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 hiring a Senior Staff Laser Architect to join our Laser System Architecture & Engineering (LSAE) team.
Visa & Work Authorization
- Export Control
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This listing is sourced directly from Lightmatter's careers page and normalized into a canonical job model.