Staff/Sr. Staff Electrical Test Engineer

Posted 6/1/2026 · last confirmed live 8/26/2026

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! In this role as a part of the product engineering team you will be focused on High Volume Manufacturing (HVM) testing, developing novel wafer and package level ATE testing strategies of Lightmatter’s Silicon Photonics products. You will be expected to support customer deployment and related technical issues. Responsibilities Define, develop, implement, and support ATE test solutions for Lightmatter's Silicon Photonics products Pre-silicon responsibilities include understanding product features, developing characterization and manufacturing test plans, highlighting test coverage holes. Actively participate with multi-functional teams including Product Development Engineering, DFT and design to efficiently debug product failures, implement optimal solutions, and drive correlation between simulation, bench, and tester environments Collaborate with OSAT/test vendors to develop ATE test SW and hardware infrastructure. Work with manufacturing teams/partners to increase yields, test coverage, capacity, and reduce production costs. Partner and drive all wafer and package level manufacturing activities by working closely with foundry and assembly houses. Lead test time reduction for ramping to HVM. Work in a fast paced and dynamic environment and be passionate about delivering quality work Write and maintain scripts/tools for the test engineering group, enhancing the group’s overall productivity. Qualifications Bachelor's or Master's degree in Electrical/Computer Engineering or equivalent experience 8+ years of ATE Test Development Experience using Advantest V93000 or Teradyne. Proficient in scripting languages like Python or Java. Experience maintaining and releasing ATE test programs to OSAT. Proficient in data analysis techniques and tools, such as excel, JMP, etc Excellent communication and teamwork abilities Preferred Qualifications: Mixed Signal and high speed Serdes test experience  Understanding of DFT insertion techniques including Scan. Able to read and understand firmware code 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. $170,000 — $220,000 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. 

This role is published by Lightmatter on greenhouse. SwiftFit is not the employer and does not accept applications.