Principal R&D Laser EPI Design Engineer

About the role

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!

What You'll Be Doing

• Coordinate 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 reliability
• EPI 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 yield
• Translate designs into EPI growth recipes and interact with internal EPI growers or manage external vendors to execute the growths
• For each growth campaign review all available calibration and EPI characterization data and feedback to internal or external growers or modify EPI designs as needed
• Work 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 improvements
• Coordinate any special EPI related analysis to understand performance and reliability such as SIMS, TEM, EDX
• Generate key intellectual property (IP) for novel ideas in device design or EPI designs

What We're Looking For

Education: PhD degree in optoelectronics or other relevant major with industry experience is minimum requirement

Core Requirements

• PhD degree in optoelectronics or other relevant major with industry experience is minimum requirement
• Hands-on experience with MBE or MOCVD growth of III/V semiconductor material, preferred experience with GaAs based VCSEL devices
• Experience with semiconductor wafer analysis such as photoluminescence (PL), Reflectance spectrum, EPI defects and haze scans, X-Ray diffraction (XRD), SIMS, ECV profiling
• Knowledge of semiconductor device physics, laser diode testing and wafer process technology
• Experience 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 contributor
• Strong verbal and written communication skills

Preferred Qualifications

• Experience with VCSEL devices
• Experience with device modeling and device simulation
• Strong communication skills

Perks You'll Love

• Flexible time off
• Health and wellness benefits (physical and mental)
• Tuition reimbursement and career growth support
• A workplace built for you: free gym, games room, prayer room
• Subsidized meals, free coffee/tea
• Employee stock options and incentive plans
• A collaborative, innovative, and inclusive culture

Join a Team That's Shaping the Future

• At 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.

Join us-your future starts here!