Analog IC Design Engineer, High-Speed

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 6+ years of industry experience, OR Ph.D. with 3+ years of industry experience Experience designing in either GHz-speed RF or GHz-speed broadband analog design Experience with Tx/Rx equalization techniques and circuits Familiarity with SERDES architectures and implementations Solid understanding of CMOS device characteristics, noise, linearity, high-frequency circuit theory and design trade-offs Experience with Cadence Design Environment Ability to work collaboratively with people across multiple functional areas Preferred Qualifications Experience designing Analog-Front-End blocks for transceiver circuits such as trans-impedance amplifiers (TIA) and Tx Driver 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 #LIF-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. $165,000-$225,000 USD BenefitsComprehensive 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.

Created: 2026-03-04