$167K – $227K/yr
Staff / Sr. Staff Photonics Test Engineer
Role overview
Job description
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. We will continue to accelerate the development of data center photonics and grow every department at Lightmatter! If you're passionate about tackling complex challenges, making an impact, and being an expert in your craft, join our team of brilliant scientists, engineers, and accomplished industry leaders. Lightmatter is (re)inventing the future of computing with light! About this Role You will be focused on architecting wafer, package and system lev
…About this listing
- Source: Lightmatter's official careers site (via Greenhouse) · last confirmed on the source 27 Oct 2026
- Posted 24 Apr 2026
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What they are looking for
Skills & requirements
Qualification
PhD in Photonics, Physics, Electrical Engineering or a related field 2+ years of photonic component or circuit design experience Exposure to system link bring-up This role requires working in out Mountain View, CA office 3 - 5 days a week. This role is open to multiple levels. Education, years of experience, and interview performance will be the determining factor for leveling. Staff: $187,000 - $220,000 Sr Staff: $215,000 - $260,000 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. $187,000 — $260,000 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 eligib
Department · Product Engineering
Hiring company
Lightmatter
Rethinking the limits of AI, Lightmatter merges photonics and computing to build a future where speed, efficiency, and intelligence converge.
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