Posted 6 months ago
Sr. Staff Photonics Systems Engineer
@ Lightmatter
Toronto, Ontario
Overview
Lightmatter is hiring a Sr. Staff Photonics Systems Engineer to develop integrated, scalable silicon photonics solutions for AI communications and computation. The role covers feasibility assessment, engineering planning, new product design and hardware validation, with a hybrid workplace and a salary of $185,000 to $217,000 CAD.
Responsibilities:
- Design and deliver high-volume laser and optical products
- Translate architecture specifications into engineering execution plans
- Collaborate across electronics, photonics, mechanical and thermal teams
- Define production test and validation protocols
- Manage external vendors for key processes and components
Requirements summary:
- PhD in Photonics, Electrical Engineering, Applied Physics or related field, plus 3 years experience
- Minimum 8 years in photonic devices and integrated circuits
- Strong understanding of silicon photonics
- Experience collaborating with cross-functional engineering teams
- Clear communication with technical and non-technical stakeholders
Tools & skills
Benefits mentioned
Source and dates
Employer career site / ATS feed · greenhouse
- Employer posting date
- 2026-04-28
- First seen by our source
- 2026-10-08
- Source record updated
- 2026-10-10
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Engineering |
| Experience | 8+ years |
| Work setting | Laboratory, Office |
| Position | Sitting and standing |
| Physical demands | physical low · computer high |
| Languages | English |
| Education | Professional degree (MD, JD…) (required), Doctorate (required) |
| Fields of study | Photonics, Electrical Engineering, Applied Physics |
| Perks mentioned | Generous paid time off, Retirement plan, Stock or equity, Transit support, Paid training |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Lightmatter
Saved company profile
Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.
A Giant Leap
Full company description
We are building the engine that will power discoveries, drive progress, and redefine what computers—and human beings—are capable of.
- LinkedIn followers
- 37,408
- People associated on LinkedIn
- 228
- Reported office locations
- 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
- Business categories
- Semiconductor
- Data Center
- Artificial Intelligence
- Software
- Hardware
- Artificial Intelligence (AI)
- Machine Learning
- AI Infrastructure
- Other recorded names
- Lightmatter
- Profile identifies a recruitment agency
- No
- Reported total investment
- 822,000,000
Currency and observation date were not supplied; this is not a current valuation or a funding round.
We are building the engine that will power discoveries, drive progress, and redefine what computers—and human beings—are capable of.
| Field | Value |
|---|---|
| Industry | Computer Hardware Manufacturing |
| Company size | 201-500 employees |
| Headquarters | Mountain View, California |
| Organization type | Privately Held |
| Year founded | 2017 |
| Open jobs on Jobsy | 13 |
| View page |
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 Sr. Staff Photonics Systems Engineer to join our photonics team. In this role, you will develop integrated and highly scalable solutions for silicon photonics AI communications and computation. You will work closely with cross-disciplinary engineering teams both internally and across our ecosystem of manufacturing partners to assess the technical feasibility of product requirements, develop an engineering plan to meet architectural specifications, execute new product designs for photonics solutions, and validate system performance on hardware.
This role requires a deep understanding of complex multi-domain platforms as well as integrated silicon photonics and the requirements of datacom systems. You will navigate the design space of performance, schedule, reliability, power consumption, and cost, working in tandem with stakeholders across the company to identify optimal and innovative engineering solutions. Creativity, analytical skills, and clear communication skills are a necessity.
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.
Responsibilities
- Engage with a cross-functional team to design and deliver a successful high-volume laser and optical product
- Collaborate with product and architecture teams to drive new laser and photonics concepts
- Work closely with hardware and software teams to translate high level module product requirements and architecture specifications into a detailed engineering execution plan
- Engage in problem-solving to resolve design and manufacturing challenges for innovative high-performance laser solutions
- Actively collaborate across disciplines—with electronics, photonics, mechanical, thermal and package-design engineering teams—to build photonic systems, control algorithms, PICs, and control ASICs that meet performance, power, and production requirements
- Collaborate with control-system and test engineers to define production test and validation protocols, as well as to characterize components and debug test results from prototype level to validation
- Work with external vendors to ensure timely development and delivery of key processes and components
Requirements:
- A Ph.D. in Photonics, Electrical Engineering, Applied Physics, or a related discipline, with at least 3 years of relevant post-degree experience (or equivalent)
- A minimum of 8 years of experience in photonic devices, photonic integrated circuits, and semiconductor physics
- Strong understanding of silicon photonics
- Experience of closely collaborating with cross-functional engineering teams, like photonics design, packaging, thermal, system engineering and firmware to name a few
- Ability to convey complex technical concepts to both technical and non-technical stakeholders with strong and clear communication
- Demonstrated strong problem solving skills specifically pertaining to problems that do not have obvious solutions
Preferred Qualifications:
- Strong understanding of laser physics
- Experience in lasers or silicon photonics for datacom applications
- Experience with control systems and system engineering
- Experience working in a high volume manufacturing environment
- Demonstrated technical leadership of a cross-functional team
- Willing and able to learn quickly, self-starter with a “no task is too big or small” attitude
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.
$185,000—$217,000 CAD
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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