R&D VCSEL Designer
- Location
- San Jose (Ridder, CA
- Listed
- Today
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
- Design of new GaAs-based VCSEL devices and VCSEL technology platforms
- Apply knowledge and experience with epitaxial growth and wafer fabrication techniques develop the design (mask layout, EPI structure) and fabrication flow (etching, metallization, dielectric passivation, implantation, oxidation, wafer fusion, etc.)
- Device characterization including laser diode testing at wafer probe and chip-on-carrier for light-voltage-current (LIV), spectra, polarization stability, near-field and far-field beam parameters under CW, ms pulsed and ns pulsed operation.
- Data analysis and understanding of device physics to correlate the device characterization to design inputs (epi, fab, emitter design and die layout) and use this information along with modeling tools to improve device performance
- Coordinate with groups within Lumentum and at contract manufacturers to bring the new designs, wafer fabrication flows and device characterization methods into manufacturing and product release
- Generating key intellectual property (IP) from new ideas in design and manufacturing
What We're Looking For
Education
PhD degree in optoelectronics or other relevant major or Master's degree with 3 years of experience is minimum requirement. PhD with industry experience is preferred..
Core Requirements
- Experience with VCSEL design and wafer fabrication
- Knowledge of semiconductor device physics, process technology and equipment,
- Experience with software data analysis tools (such as Excel, JMP, Minitab), photomask layout, 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
Optoelectronic device modeling including electrical, optical, thermal.
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!
About Lumentum
At 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.
Equal opportunity and legal notices
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.
From Lumentum's careers page, first listed on Rolev.ai on November 15, 2026. Rolev.ai is not the employer.
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Common questions
Where is the R&D VCSEL Designer job at Lumentum located?
This R&D VCSEL Designer position at Lumentum is located in San Jose (Ridder, CA. Always check Lumentum's application page for specific state eligibility or relocation policies.
How do I apply for the R&D VCSEL Designer position at Lumentum?
This listing links directly to Lumentum's Workday application page. You can apply directly on Lumentum's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Workday application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.