Lightmatter Visa Sponsorship Jobs USA
Lightmatter is a photonic computing company pushing the boundaries of AI hardware infrastructure. For visa-sponsored roles in cutting-edge semiconductor and chip design, Lightmatter sponsors H-1B visa, F-1 OPT, F-1 CPT, TN visa, and J-1 visas, making it a legitimate target for international engineers in deep tech.
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Get Access To All JobsINTRODUCTION
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!
ROLE AND RESPONSIBILITIES
We are seeking a highly skilled Senior Physical Design Engineer to work on the implementation of complex digital blocks. In this role, you will leverage your expertise in advanced process nodes (3nm) to drive timing closure, power integrity, and physical verification for high-performance ASICs. Beyond standard digital flows, you will have the unique opportunity to work alongside a team of world-class scientists and engineers in defining how the system will be optimized and trailblaze problems that are new to the photonics industry! If your passion is innovation, solving challenging technical problems and doing impactful work you should join our team!
- Implement digital blocks in advanced tech nodes from synthesis through physical verification, using industry standard tools and flows
- Drive fullchip STA signoff, review constraints, debug timing reports and implement ecos
- Drive power analysis and optimization while balancing area and performance trade-offs
- Drive full chip floor planning, IO placement and clock distribution
- Understand clock details and be able to customize clock implementation for functional and test clocks
- Debug and clean up DRC/LVS
- Functional and timing ECO implementation
- Work with EDA companies to resolve any tool issues
- Write TCL, Python, or Shell scripts to automate flow or customize existing flows
BASIC QUALIFICATIONS
- Bachelor's in Electrical Engineering or Computer Engineering
- 12+ years of industry experience working as a Physical Design Engineer
- Must have completed blocks or top level physical design for large ASICs or mixed signal chips that taped out
- Thorough knowledge of timing closure, LVS/DRC closure
- Experience in TCL and Python (or other scripting languages)
- Strong teamwork skills with the ability to collaborate with multiple functional teams across a variety of fields
- Ability to react to change and thrive in a fast paced environment
PREFERRED QUALIFICATIONS
- Masters Electrical Engineering or Computer Engineering with 8 years of industry experience
- Hands-on experience with Cadence tools
- Tape-out experience 3nm designs
- Be willing to do manual layouts as well as willingness to learn and do silicon photonics layout
- EM/IR analysis using standard industry signoff tools
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.
INTRODUCTION
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!
ROLE AND RESPONSIBILITIES
We are seeking a highly skilled Senior Physical Design Engineer to work on the implementation of complex digital blocks. In this role, you will leverage your expertise in advanced process nodes (3nm) to drive timing closure, power integrity, and physical verification for high-performance ASICs. Beyond standard digital flows, you will have the unique opportunity to work alongside a team of world-class scientists and engineers in defining how the system will be optimized and trailblaze problems that are new to the photonics industry! If your passion is innovation, solving challenging technical problems and doing impactful work you should join our team!
- Implement digital blocks in advanced tech nodes from synthesis through physical verification, using industry standard tools and flows
- Drive fullchip STA signoff, review constraints, debug timing reports and implement ecos
- Drive power analysis and optimization while balancing area and performance trade-offs
- Drive full chip floor planning, IO placement and clock distribution
- Understand clock details and be able to customize clock implementation for functional and test clocks
- Debug and clean up DRC/LVS
- Functional and timing ECO implementation
- Work with EDA companies to resolve any tool issues
- Write TCL, Python, or Shell scripts to automate flow or customize existing flows
BASIC QUALIFICATIONS
- Bachelor's in Electrical Engineering or Computer Engineering
- 12+ years of industry experience working as a Physical Design Engineer
- Must have completed blocks or top level physical design for large ASICs or mixed signal chips that taped out
- Thorough knowledge of timing closure, LVS/DRC closure
- Experience in TCL and Python (or other scripting languages)
- Strong teamwork skills with the ability to collaborate with multiple functional teams across a variety of fields
- Ability to react to change and thrive in a fast paced environment
PREFERRED QUALIFICATIONS
- Masters Electrical Engineering or Computer Engineering with 8 years of industry experience
- Hands-on experience with Cadence tools
- Tape-out experience 3nm designs
- Be willing to do manual layouts as well as willingness to learn and do silicon photonics layout
- EM/IR analysis using standard industry signoff tools
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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Get Access To All JobsTips for Finding Lightmatter Visa Sponsorship Jobs USA
Target roles that align with photonic and AI hardware
Lightmatter builds optical computing systems for AI workloads. Engineers with backgrounds in photonics, chip architecture, or semiconductor design are the most natural fit for sponsored roles, focus your application on these technical specializations.
Understand that H-1B sponsorship is the primary path
Lightmatter's sponsorship activity centers on H-1B visas. If you're already in the U.S. on F-1 OPT or CPT, use that time strategically to get your foot in the door before H-1B lottery season.
Apply early relative to H-1B lottery deadlines
H-1B registrations open in March each year. Targeting Lightmatter well before that window, ideally six to nine months ahead, gives hiring managers time to evaluate and commit to sponsoring you through the lottery.
Highlight deep technical skills, not just software experience
Lightmatter operates in Electronics and Hardware, not general software. Applications that demonstrate hands-on experience with optical systems, VLSI design, or hardware-software co-design will stand out from software-only candidates.
Use OPT and CPT as a bridging strategy
Lightmatter sponsors F-1 OPT and CPT, which can be a practical entry point before pursuing H-1B. An internship or early full-time role on OPT builds internal trust and strengthens your case for long-term sponsorship.
Filter for verified sponsors when searching for open roles
Not every job posting reflects real sponsorship willingness. Migrate Mate surfaces verified sponsors so you can filter by actual sponsorship history, search for Lightmatter roles there to find positions backed by confirmed visa support.
Frequently Asked Questions
Does Lightmatter sponsor H-1B visas?
Yes, Lightmatter sponsors H-1B visas. It is an active sponsor in the Electronics and Hardware space, with H-1B being its primary visa pathway for international hires. Roles in photonic computing, hardware engineering, and AI infrastructure are the most common areas where H-1B sponsorship occurs. If you're targeting Lightmatter, the H-1B is the most likely long-term sponsorship route available to you.
Which visa types does Lightmatter sponsor?
Lightmatter sponsors H-1B, F-1 OPT, F-1 CPT, TN visa, and J-1 visas. This range means international candidates at multiple stages of their U.S. work authorization journey can find a pathway in. F-1 students can enter through OPT or CPT, while professionals from Canada or Mexico may qualify under TN status in relevant engineering or scientific roles.
What types of roles at Lightmatter are most likely to receive visa sponsorship?
Sponsorship at Lightmatter is concentrated in highly technical roles, think hardware engineers, photonics researchers, chip designers, and AI systems engineers. The company's core product is optical computing hardware for AI, so roles that require specialized knowledge in semiconductors, integrated photonics, or computer architecture are where international talent is most actively recruited and sponsored.
How do I time my application to Lightmatter around the H-1B process?
The H-1B lottery registration window opens each March for an October 1 start date. To be sponsored in that cycle, you'd ideally secure an offer by late 2025 or early 2026. Starting your outreach to Lightmatter six to nine months before the registration window gives the company enough lead time to commit to sponsorship and prepare your petition.
How do I find open sponsored jobs at Lightmatter?
The most reliable approach is to use Migrate Mate, which aggregates roles from verified visa sponsors and lets you filter specifically by company and visa type. This removes the guesswork of whether a listing actually comes with sponsorship support. Once you identify a relevant opening at Lightmatter, tailor your application to highlight the deep hardware expertise the company consistently looks for in sponsored hires.