← All jobs · Lightmatter

Staff Photonics Design Engineer

Lightmatter ·
54
AI-Agency
B72 U25
📍 Boston, US 💰 $200K–$225K Staff 3+ yrs
LumericalTidy3DPythonGDS Factory
TL;DR

Staff Photonics Design Engineer at Lightmatter designing silicon photonics devices for integrated laser systems in AI data center infrastructure. Responsibilities include device design, layout, testing, and cross-functional collaboration with packaging and systems teams.

Apply at Lightmatter →
share:
you'll be redirected to the company's career page

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:

Required Qualifications:

Preferred Qualifications:

 

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. 

Apply at Lightmatter →

More open roles at Lightmatter

Lightmatter · 🔄 synced 3h ago
Principal Machine Learning Infrastructure Researcher
📍 Toronto, CA 🌐 Remote · Principal
Principal ML Infrastructure Researcher at Lightmatter building performance modeling tools for photonics-enabled AI systems. Focus on ML systems research, hardware-software co-design, and leading a small research team.
PyTorchTensorFlowGPUsTPUsInfinibandNVLink
83
AI-core
Lightmatter · 🔄 synced 3h ago
Principal Machine Learning Infrastructure Researcher
📍 Mountain View, US 💰 $300K–$350K · Principal
Principal Machine Learning Infrastructure Researcher at Lightmatter building performance modeling tools and systems research for photonics-enabled AI data centers. Lead a small ML engineering team and publish research on training/inference workloads.
GPUsTPUsEthernetInfinibandNVLinkLLM training frameworks
79
AI-core
Lightmatter · 🔄 synced 3h ago
Senior Digital (Mix Signal) Architect
📍 Boston, US 💰 $219K–$270K · Senior
Senior Mixed-Signal Digital Architect at Lightmatter designing digital circuits for photonic-based AI data center infrastructure. Responsible for architecture from concept through production, integrating high-speed analog, mixed-signal, and photonic circuits with firmware/software interfaces.
SerDesDSPFECCRCRTLphotonic circuits
57
AI-fluent
Lightmatter · 🔄 synced 3h ago
Chip Architecture Leader
📍 Boston, US 🌐 Remote 💰 $247K–$337K · Director
Head of Chip Architecture at Lightmatter leading the design of photonics-based AI data center interconnect chips. Requires PhD in EE/Physics, 10+ years experience, and proven track record shipping multiple chip architectures to production.
Silicon photonicsSerDesoptical transceiverselectro-optic interfacesfiber-optic communications
57
AI-fluent
Lightmatter · 🔄 synced 3h ago
Chip Architecture Leader
📍 Toronto, CA · Director
Head of Chip Architecture at Lightmatter leading the design of silicon photonics chips for AI data center interconnects. Requires PhD in EE/Physics, 10+ years experience, and proven track record shipping photonic/analog chips to high volume.
Silicon photonicsSerDesanalog front endsoptical transceiverselectro-optic interfaces
57
AI-fluent