Photonics Validation Engineer

About LyteLyte builds perception systems for Physical AI operating in complex environments. The company combines custom silicon, integrated sensors, and software into a unified platform for robotics, mobility, and next-generation automation. Lyte is headquartered in Sunnyvale, California, with a global presence. For more information, visit www.lyte.aiIf you’re excited about building impactful technology in a dynamic, hands-on environment, we’d love to hear from you!About The RoleWe are seeking a highly motivated Photonics Validation Engineer to join our team. In this role, you will be responsible for validating photonics sub-systems and packaged opto-electronic modules — building test infrastructure from the ground up and driving failure analysis from component level through module level. This position requires hands-on expertise in optical and electro-optic testing, strong troubleshooting instincts, and the ability to work closely with a multidisciplinary engineering team. Experience with EIC control, firmware/FPGA/ASIC-based test environments, coherent communications, and data analysis is essential. Background in free space optics, micro-optics, packaging, and III-V semiconductor physics is a plus. You will work alongside a world-class, cross-functional team in a fast-paced and rapidly growing environment.What You'll DoBuild test benches and automated test setups from scratch for photonics systems, components, and packaged opto-electronic devicesDesign, execute, and refine test plans and validation methodologies across wafer, chip, eval board, and sub-module levelsPerform spectrum analysis, noise analysis and FFT-based signal analysisValidate coherent communication systems and modules (e.g., coherent receivers, DSP-linked subsystems) Perform failure analysis efforts — root-causing device and system failures across optical, electrical, and firmware layers, and driving corrective actionsPerform passive optical testing (insertion loss, return loss, wavelength response, etc.)Troubleshoot and debug test setups and design issues, identifying and resolving challengesAnalyze and visualize test data to characterize device performance and identify trends or deviationsInterface with EIC controls, firmware, and embedded software during test bring-upCollaborate with FPGA/ASIC teams to support test automation, debug, and validation workflowsWork closely with cross-functional teams (design, packaging, manufacturing, product) to drive issues from detection to resolutionDocument test procedures, results, and failure analyses; communicate findings clearly to internal stakeholdersSupport the transition of test methodologies from R&D into high-volume manufacturingRequired QualificationsBachelor's degree in Electrical Engineering, Photonics, Applied Physics, or a related field; a Master's or Ph.D. is welcome but not required3–7 years of relevant industry or applied research experience in photonics validation, optical testing, or opto-electronic systemsHands-on experience testing photonic or opto-electronic components, subsystems, or packaged modulesExperience building test benches, fixtures, or automated test setups from the ground upStrong failure-analysis and troubleshooting skills, with the ability to isolate root causes across optical, electrical, and firmware domainsHands-on experience with optical and electrical lab equipment, including spectrum analyzers, oscilloscopes, network analyzers, and optical power metersProficiency in data analysis, automation, and visualization using Python, MATLAB, or similar toolsWorking knowledge of coherent optical communication principlesStrong written and verbal communication skills, with the ability to work effectively across engineering disciplinesPreferred QualificationsExperience interfacing with EIC controls, firmware, or embedded software during test bring-upExperience with FPGA- or ASIC-based test environments and validation workflowsExperience with spectrum, noise, or FFT-based signal analysisBackground in free-space optics, micro-optics, photonics packaging, or III-V semiconductor physicsExperience transitioning test methodologies from R&D into manufacturing or high-volume productionBenefits (subject to location and local regulations)Competitive salary and equity Comprehensive medical, dental, and vision coverage 401(k) retirement plan Flexible vacation and time-off policy Collaborative, fast-paced, and inclusive work environment Opportunity to work on cutting-edge technologies with a highly cross-functional team The Pay Range For This Role Is170,000 - 250,000 USD per year(Bay Area, CA)