Company · 67 open roles
Careers at Lightmatter
Lightmatter has 67 active roles on ResuMinder right now. Score your CV instantly and use the ResuMinder extension to apply in seconds — no manual form-filling.
Refreshed continuously
Across active listings
All open roles
67 positions at Lightmatter
Sr. Staff Physical Design Engineer
Lightmatter·Toronto, ON
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 i…
Sr. Staff Physical Design Engineer
Lightmatter·Boston, MA
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 i…
Staff Hardware Test & Bring-Up Engineer
Lightmatter·Mountain View, CA
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 i…
Staff Embedded Software Engineer
Lightmatter·Boston, MA; Mountain View, CA
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 i…
Staff High-Speed I/O Test Engineer
Lightmatter·Mountain View, CA
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 i…
Analog/Mixed Signal Architect
Lightmatter·Boston, MA; Mountain View, CA
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 i…
Analog/Mixed Signal Architect
Lightmatter·Toronto, ON
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 i…
Digital Architect
Lightmatter·Toronto, ON
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 i…
Digital Architect
Lightmatter·Boston, MA; Mountain View, CA
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 i…
Photonics Hardware Validation Engineer
Lightmatter·Mountain View, California, United States
Photonics Hardware Validation Engineer at Lightmatter. Location: Mountain View, California, United States. Role: designing tests, building systems, validating products Requirements: Bachelor's in EE/Physics, hands-on electro-optic link testing, PCB debugging, lab test automation …
Staff Photonics Design Engineer
Lightmatter·Toronto or Boston or Mountain View
Staff Photonics Design Engineer at Lightmatter. Location: Toronto or Boston or Mountain View. Role: designing devices, laying out, validating devices Requirements: PhD in EE/Physics/Photonics with 3+ years industry experience in silicon photonics device design, layout, and testin…
Hardware Verification Engineer — Electro-Optic Links
Lightmatter·Boston or Mountain View
Hardware Verification Engineer — Electro-Optic Links at Lightmatter. Location: Boston or Mountain View. Role: characterizing hardware, running measurements, mentoring engineers Requirements: 8+ years experience leading verification of high-speed electro-optic/serial links; hands-…
Senior Laser & SOA Characterization Engineer
Lightmatter·Boston or Mountain View
Senior Laser & SOA Characterization Engineer at Lightmatter. Location: Boston or Mountain View. Role: leading characterization, developing methodologies, automating workflows Requirements: PhD or Master's in EE/Physics/Photonics, 5+ years hands-on semiconductor laser/SOA characte…
Staff Hardware Systems Validation Engineer
Lightmatter·Mountain View, California, United States
Staff Hardware Systems Validation Engineer at Lightmatter. Location: Mountain View, California, United States. Role: designing systems, validating chips, testing links Requirements: BS or MS in EE, Physics, or related; experience with electro-optic link-level testing, PCB/hardwar…
Staff Electrical Design Engineer
Lightmatter·Toronto or Mountain View
Staff Electrical Design Engineer at Lightmatter. Location: Toronto or Mountain View. Role: designing circuits, overseeing layout, leading integration Requirements: Bachelor's in Electrical Engineering, 8+ years system-level electrical design experience, PCB and board-level design…
Staff Electrical Design Engineer
Lightmatter·Mountain View, California, United States
Staff Electrical Design Engineer at Lightmatter. Location: Mountain View, California, United States. Role: defining requirements, designing circuits, validating systems Requirements: Bachelors in EE, 8+ years system-level electrical design experience, 5+ years lab/debug experienc…
Hardware Systems Technical Lead
Lightmatter·Mountain View, California, United States
Hardware Systems Technical Lead at Lightmatter. Location: Mountain View, California, United States. Role: developing systems, leading integration, mentoring engineers Requirements: Bachelor's in Electrical Engineering or related, 12+ years industry experience delivering complex h…
Laser Characterization, Temp
Lightmatter·Mountain View, California, United States
Laser Characterization, Temp at Lightmatter. Location: Mountain View, California, United States. Role: characterizing lasers, analyzing data, developing automation Requirements: PhD or advanced degree student with strong understanding of semiconductor lasers, hands-on optical lab…
Sr. Staff Physical Design Timing Engineer (STA)
Lightmatter·Boston, MA
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 i…
Sr. Staff Thermal Engineer
Lightmatter·Boston or Mountain View
Sr. Staff Thermal Engineer at Lightmatter. Location: Boston or Mountain View. Role: performing thermal simulations, developing thermal models, collaborating with design engineers Requirements: Senior thermal engineer with MS/PhD in engineering and 5+ years in package/system therm…
Staff Mechanical Engineer
Lightmatter·Boston or Mountain View
Staff Mechanical Engineer at Lightmatter. Location: Boston or Mountain View. Role: Create mechanical models, Perform mechanical design analysis, Conduct finite element analysis Requirements: BS/MS/PhD in Mechanical Engineering; 5+ years mechanical design and FEA; CAD tools; GD&T;…
Photonics Technical Lead
Lightmatter·Boston or Mountain View or Toronto
Photonics Technical Lead at Lightmatter. Location: Boston or Mountain View or Toronto. Role: design laser, collaborate teams, validate performance Requirements: PhD in Photonics, Electrical Engineering, or Applied Physics with 3+ years post-degree experience; at least 8 years in …
Staff / Sr. Staff Photonics Test Engineer
Lightmatter·Mountain View, CA
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 i…
Sr Product Engineer
Lightmatter·Mountain View, California, United States
Sr Product Engineer at Lightmatter. Location: Mountain View, California, United States. Role: Strategic Ownership, Manufacturing Excellence, Yield Optimization Requirements: Masters in CS/EE/Physics/Materials Science; 5+ years in semiconductor product engineering; experience wi…
Tech stack signals
What Lightmatter hires for
Most-requested skills across active job descriptions.