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60 Lightmatter Engineers Jobs Hiring Near You

Lightmatter

Photonics Architect

Boston, MA · On-site

$150K - $220K/yr

Lightmatter is (re)inventing the future of computing with light! We are hiring a Photonics Architect. The selected candidate will partner with the internal engineering team to deliver groundbreaking ...

Lightmatter

Sr. Staff Physical Design Engineer

Boston, MA · On-site

$217K - $267K/yr

... engineers, and accomplished industry leaders. Lightmatter is (re)inventing the future of computing with light! We are seeking a highly skilled Senior Physical Design Engineer to work on the ...

Lightmatter

Staff Embedded Software Engineer

Boston, MA · On-site

$175K - $220K/yr

... engineers, and accomplished industry leaders. Lightmatter is (re)inventing the future of computing with light! We are hiring a talented software engineer to help us build the next generation of ...

Lightmatter

Staff/Sr. Staff Design Verification

Boston, MA · On-site

$206K - $236K/yr

As a Design Verification Engineer at Lightmatter, you will find yourself at the heart of a dynamic, interdisciplinary team. Your role will involve close collaboration with our digital design experts ...

Lightmatter

Sr. Staff Photonics Systems Engineer

Boston, MA · On-site

$230K - $267K/yr

... engineers, and accomplished industry leaders. Lightmatter is (re)inventing the future of computing with light! We are hiring a Sr. Staff Photonics Systems Engineer to join our photonics team. In this ...

Lightmatter

Electro-Optic Systems Architect

Boston, MA · On-site

$150K - $220K/yr

Lightmatter builds chips that enable extreme-scale AI computing clusters. If you're a collaborative engineer or scientist who has a passion for innovation, solving challenging technical problems and ...

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    Infographic showing various Engineers job openings at Lightmatter in the United States as of August 2026, with employment types broken down into 99% Full Time, and 1% Temporary. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution.

    Electro-Optic Link Hardware Engineer

    Lightmatter

    Mountain View, CA • On-site

    $195K - $250K/yr

    Full-time

    Medical, Dental, Vision, Life, Retirement, PTO

    Posted 29 days ago

    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!
    We're looking for a hands-on Photonics engineer to lead verification and characterization of high-speed electro-optic links across multiple silicon and system programs. You'll work at the bench alongside the EOE team owning modeling methodology, measurement standards, and serving as the escalation point for the toughest signal integrity and link-performance problems in the org.
    Responsibilities:
    • Run hands-on lab characterization and debug of high-speed electrical/optical hardware, including novel failure modes
    • Build system-level electrical/optical/EO channel models and correlate them against your own bench measurements
    • Own link budget and verification methodology while staying hands-on with the validating measurements
    • Characterize eye diagrams, BER, jitter, equalization, and channel impairments
    • Support silicon bring-up and root-cause debug with analog, package, PCB, and SerDes teams
    • Influence chip/package/system architecture tradeoffs based on bench findings
    • Mentor Senior/Staff engineers without stepping back from lab work
    • Build automation/tools to speed up characterization work

    Qualifications:
    • MS/PhD in EE, Photonics, Physics (8+ yrs) or BS/MS (10+ yrs)
    • Ownership of verification strategy for a full silicon/system program
    • Deep expertise in 56G/112G/224G+ serial links, SerDes equalization (CTLE/FFE/DFE), and signal integrity (S-parameters, crosstalk, link budgets)
    • Hands-on lab experience leading investigations that stalled others
    • Strong Python/MATLAB for team-used automation frameworks
    • Proficiency with VNA, scopes, BERTs, TDRs, and tools like ADS, HFSS, Cadence, COMSOL
    • Track record mentoring engineers

    Preferred Qualifications:
    • Silicon photonics/EO systems at the architecture level
    • Package/PCB/channel co-design ownership
    • COM/IBIS-AMI modeling, patents/standards contributions (OIF, IEEE 802.3)

    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.
    $195,000-$250,000 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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