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…
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…
Skills: 3D Packaging, Photonics Packaging, Assembly Process Development, Test Chip Design, Fiber Attach
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…
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…
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…
Skills: Foundry Process Technology, Silicon Manufacturing, Photonics, Design-For-Manufacturing, Yield Monitoring
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…
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…
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…
Skills: Electro-Optic Link Characterization, Signal Integrity, SerDes Equalization, Python, MATLAB
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…
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…
Skills: Hardware Verification, Electro-Optic Links, Signal Integrity, SerDes Equalization, Python
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…
Skills: Electrical Design, PCB Layout, Schematic Design, Analog Design, Digital Design
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…
Skills: Electro-optic system modeling, Cadence Virtuoso, Spectre, Verilog-A, VPI Photonics
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…
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…
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…
Skills: Digital Architecture, Mixed-Signal Communication, Photonic Circuits, AMS Circuits, SerDes
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…
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…
Skills: ATE Test Development, Advantest V93000, Teradyne, Python, Java
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…
Skills: Hardware Systems Design, PCB Design, VRMs, High-speed SerDes, PCIe
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…
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…
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$200k–$225k/yr
Full-time
postgraduate degree
Comprehensive Health Care Plan, Retirement Savings Matching Program, Life Insurance, Generous Time Off, Paid Family Leave, Short Term Disability
Posted 9h ago
~40 hrs/week
Responsibilities
You will design, layout, and test silicon photonics devices for integrated laser systems while collaborating with cross-functional teams. Responsibilities include developing test plans, optimizing device performance, and addressing integration challenges with packaging and systems engineering.
Requirements
Candidates must hold a PhD in Electrical Engineering, Physics, Photonics, or a related discipline with at least 3 years of industry experience. Proficiency in silicon photonics design, layout tools like Lumerical or Tidy3D, and Python-based data analysis is required.
Full 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 are hiring a Photonics Design Engineer to join our development team. In this role, you will design, layout, and test silicon photonics devices for an integrated and scalable laser system.You will collaborate closely with cross-functional teams including photonics, packaging, systems, and software to define and refine specifications, ensuring that all designs meet or exceed performance targets and align with product requirements.
Join a tight-knit team where each individual’s contributions directly influence the success of the company and product. You'll have the opportunity to build innovative laser solutions from the ground up and tackle groundbreaking challenges. Work with people who love to build and who thrive in diverse technical environments where great ideas are prioritized.
Key Responsibilities:
Design and optimize silicon photonic devices for laser systems, including couplers, muxes, rings, switches, and other active and passive components.
Layout device test structures as well as complex integrated photonic systems.
Work with the characterization team to develop and execute test plans for device validation, analyzing results to assess performance and troubleshoot issues.
Work closely with packaging and systems engineering teams to address integration challenges, ensuring high alignment between device and system requirements.
Implement rigorous simulation, modeling, and testing methodologies to calibrate designs and optimize performance across manufacturing variability.
Engage in problem solving and contribute to new device designs and architectures.
Publish novel photonics results, and participate in premier optics/photonics conferences.
Required Qualifications:
PhD in Electrical Engineering, Physics, Photonics, or related discipline with 3 years of industry experience
Experience in silicon photonics device design, layout, and testing, ideally in a product development environment
Demonstrated track record of designing integrated silicon photonics components using Lumerical, Tidy3D, or equivalent
Proficiency in modeling and data analysis in Python
Experience with integrated lasers, SOAs
Excellent communication skills, with a demonstrated ability to collaborate effectively with multidisciplinary teams
Demonstrate strong problem solving skills in problems that do not have obvious solutions
Can-do, positive attitude
Preferred Qualifications:
Experience doing layout with foundry PDKs
Experience with code-based GDS creation such as GDS Factory or similar
Experience with optical and electronic test equipment, wafer-level testing and statistical data analysis (e.g., optical spectrum analyzers, tunable lasers, OBR/OVA, oscilloscopes, BERT).
Strong project execution skills, with the ability to handle multiple priorities and meet project milestones.
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.
$200,000—$225,000 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.
We are building the engine that will power discoveries, drive progress, and redefine what computers—and human beings—are capable of.
Offices: 800 W El Camino Real, Mountain View, California 94040, US · 100 Summer St, Boston, Massachusetts 02136, US · 18 King St E, Suite 1200, Toronto, Ontario M5C 1C4, CA
We are building the engine that will power discoveries, drive progress, and redefine what computers—and human beings—are capable of.
Offices: 800 W El Camino Real, Mountain View, California 94040, US · 100 Summer St, Boston, Massachusetts 02136, US · 18 King St E, Suite 1200, Toronto, Ontario M5C 1C4, CA