Principal R&D Laser EPI Design Engineer

It's fun to work in a company where people truly BELIEVE in what they're doing!We're committed to bringing passion and customer focus to the business.If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!About LumentumAt Lumentum, we’re building the tech behind the world’s fastest networks and most advanced systems. Our optical and photonic solutions power everything from AI and cloud computing to data centers, telecom, and advanced manufacturing.We’re a global team of innovators working where light meets technology, solving big challenges that keep the world connected and moving forward. If shaping the future of connectivity excites you, you’ll fit right in.What You’ll Be DoingCoordinate with device designers to develop the epitaxial growth recipes needed for the devices to meet the wide range of performance requirements including output power, drive voltage, beam characteristics, wavelength, high-speed operation and reliabilityEPI design includes, but is not limited to, modeling design inputs such as layer thicknesses and compositions, doping profiles, active regions, growth conditions to outputs such as mode profiles, beam divergence and electrical resistance.EPI designs must align with the wafer processing and device design technology with high yieldTranslate designs into EPI growth recipes and interact with internal EPI growers or manage external vendors to execute the growthsFor each growth campaign review all available calibration and EPI characterization data and feedback to internal or external growers or modify EPI designs as neededWork with device designers and wafer process integration teams to launch process runs. Support NPI team to analyze all critical wafer processing, device testing and reliability data to feedback to EPI design improvementsCoordinate any special EPI related analysis to understand performance and reliability such as SIMS, TEM, EDXGenerate key intellectual property (IP) for novel ideas in device design or EPI designsWhat We’re Looking ForEducation: PhD degree in optoelectronics or other relevant major with industry experience is minimum requirementExperience:Core Requirements:PhD degree in optoelectronics or other relevant major with industry experience is minimum requirementHands-on experience with MBE or MOCVD growth of III/V semiconductor material, preferred experience with GaAs based VCSEL devicesExperience with semiconductor wafer analysis such as photoluminescence (PL), Reflectance spectrum, EPI defects and haze scans, X-Ray diffraction (XRD), SIMS, ECV profilingKnowledge of semiconductor device physics, laser diode testing and wafer process technologyExperience with software data analysis tools (such as Excel, JMP, Minitab) and data processing (Python, Matlab)Excellent ability to work in cross-functional teams as both a team leader and a contributorStrong verbal and written communication skillsPreferred QualificationsExperience with VCSEL devicesExperience with device modeling and device simulationStrong communication skillsPerks You’ll LoveFlexible time offHealth and wellness benefits (physical and mental)Tuition reimbursement and career growth supportA workplace built for you: free gym, games room, prayer roomSubsidized meals, free coffee/teaEmployee stock options and incentive plansA collaborative, innovative, and inclusive cultureJoin a Team That’s Shaping the FutureAt Lumentum, we’re more than just a workplace—we’re a launchpad for creativity and innovation. We’re committed to celebrating your unique talents and helping you grow. Our guiding principles—Innovate, Engage, Deliver, Excel, and Win—aren’t just words; they’re the heart of what we do.Let’s Build a Brighter Future Together!We’re committed to building an inclusive workplace where everyone feels valued and empowered. We welcome applicants from all backgrounds and provide accommodations for individuals with disabilities throughout the hiring process. Your uniqueness makes us stronger, sparks creativity, and drives our success.Please contact us at View email address on click.appcast.io to request accommodation.Join us—your future starts here!Pay Range:P70-USA-1 :$134,750.00 - $192,500.00Disclaimer:Final base salary for the successful candidate will depend on multiple factors, including but not limited to, job location, where work will be performed, qualifications, work history and relevant experience. With our continual goal of making Lumentum a best place to work for our employees, we strive to offer employees competitive total compensation packages, which may include annual bonus, commission for certain sales roles, equity, and health and welfare benefits.SummaryLocation: USA - CA - San Jose (Ridder)Type: Full time