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Staff Embedded Software Engineer, Lasers

Lightmatter

Mountain View, CA (Boston, MA, Mountain View, CA, Toronto, ON) Hybrid permanent

Posted: April 29, 2026

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Quick Summary

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.

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

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• Why join the team? (use keyword but avoid acronyms and abbreviations)

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• How does it impact the business?

Responsibilities

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Qualifications

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Preferred Qualifications

In addition to the main qualifications - Not required for an applicant to be considered a candidate for the position. They are desired qualifications above and beyond the minimums that demonstrate additional experience, education, or credentials. They are seen as “nice to have” qualities that will lead to a higher level of success for the applicant during the interview and consequently performing the job if the person is hired.

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.
$175,000—$224,000 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 eligibility may vary depending on your employment status and location. 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.

Export Control

Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.

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