Lightmatter
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!
About this Role Join a cutting-edge team at the forefront of silicon photonics and high-speed transceiver design! As a member of the analog team, you’ll collaborate with our architects and engineers to develop innovative high-speed analog transceiver solutions for next‑generation optical and wireline communication systems.
* We are currently hiring for multiple levels for this role. Your level and compensation will be determined by your experience, education, and location.
Responsibilities
Support micro‑architecture development with chip architects by conducting feasibility studies
Collaborate with members of our design engineering teams (system, digital, analog, photonics) to define electrical requirements
Design analog/mixed-signal blocks with a focus on transceivers and broadband circuits interfacing with silicon photonics elements
Document design simulations and verifications towards formal design reviews
Drive block-level floorplan, mask design views, and their reviews
Run post-layout and mixed-signal top-level simulations to validate integration
Define production and bench-level test plans
Validate performance of the circuits in the lab
Qualifications
MS with 8+ years of industry experience, OR Ph.D. with 5+ years of industry experience
Experience designing Analog-Front-End blocks such as trans-impedance amplifiers (TIA) and Tx Driver
Experience with Tx/Rx equalization techniques and circuits
Familiarity with SERDES architectures and implementations
Solid understanding of CMOS device characteristics, noise, mismatch, linearity, and design trade-offs
Experience with Cadence Design Environment
Ability to work collaboratively with people across multiple functional areas
Preferred Qualifications
Knowledge of 3D Electro‑Magnetic (EM) simulation tools is a plus
Experience with testing and validating high-speed analog/mixed-signal circuits
Experience interfacing with silicon photonic modulators (MZM, Ring) is a plus
Successful track record in delivering analog/mixed-signal IPs with 1st-time success while meeting tight schedules
#LI-FM1
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 - $240,000 USD
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
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.
#J-18808-Ljbffr
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!
About this Role Join a cutting-edge team at the forefront of silicon photonics and high-speed transceiver design! As a member of the analog team, you’ll collaborate with our architects and engineers to develop innovative high-speed analog transceiver solutions for next‑generation optical and wireline communication systems.
* We are currently hiring for multiple levels for this role. Your level and compensation will be determined by your experience, education, and location.
Responsibilities
Support micro‑architecture development with chip architects by conducting feasibility studies
Collaborate with members of our design engineering teams (system, digital, analog, photonics) to define electrical requirements
Design analog/mixed-signal blocks with a focus on transceivers and broadband circuits interfacing with silicon photonics elements
Document design simulations and verifications towards formal design reviews
Drive block-level floorplan, mask design views, and their reviews
Run post-layout and mixed-signal top-level simulations to validate integration
Define production and bench-level test plans
Validate performance of the circuits in the lab
Qualifications
MS with 8+ years of industry experience, OR Ph.D. with 5+ years of industry experience
Experience designing Analog-Front-End blocks such as trans-impedance amplifiers (TIA) and Tx Driver
Experience with Tx/Rx equalization techniques and circuits
Familiarity with SERDES architectures and implementations
Solid understanding of CMOS device characteristics, noise, mismatch, linearity, and design trade-offs
Experience with Cadence Design Environment
Ability to work collaboratively with people across multiple functional areas
Preferred Qualifications
Knowledge of 3D Electro‑Magnetic (EM) simulation tools is a plus
Experience with testing and validating high-speed analog/mixed-signal circuits
Experience interfacing with silicon photonic modulators (MZM, Ring) is a plus
Successful track record in delivering analog/mixed-signal IPs with 1st-time success while meeting tight schedules
#LI-FM1
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 - $240,000 USD
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
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.
#J-18808-Ljbffr