Lead EPI Growth & VCSEL Design Engineer

Lumentum Operations LLC; San Jose (CA); On-site; USD 135,000 - 193,000; Full time

Benefits offered by this job

Flexible time off

Health and wellness benefits (physical

Mental health support

Tuition reimbursement and career成长

Gym facility and subsidized meals

Employee stock options and incentive计划

Job summary

Lumentum in San Jose, CA is seeking a highly skilled PhD-level researcher to advance epitaxial growth and device integration for VCSEL and III/V semiconductor platforms. You will design growth recipes, analyze wafer data, and collaborate with cross-functional teams to push performance and reliability.

We value hands-on experience with MBE/MOCVD, wafer analysis (PL, XRD, SIMS), and strong data analytics (Python/ Matlab). Excellent communication and IP-focused thinking are essential.

Qualifications

• PhD in optoelectronics or related 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

Responsibilities

• Coordinate with device designers to develop the epitaxial growth recipes needed for devices to meet performance requirements.
• Model design inputs and outputs for EPI growth, including layer thicknesses, doping profiles, and active regions.
• Ensure EPI designs align with wafer processing and device design for high yield.
• Translate designs into EPI growth recipes and interact with internal growers or manage external vendors.
• Review calibration and characterization data and modify EPI designs as needed.
• Work with device designers and wafer process integration teams to launch process runs.
• Support NPI team to analyze wafer processing and reliability data for EPI improvements.
• Coordinate EPI-related analyses (SIMS, TEM, EDX) to understand performance and reliability.
• Generate IP for novel ideas in device design or EPI designs.

Skills

Cross-functional teamwork

Strong communication

Python

Matlab

Education

PhD in optoelectronics or related major

Tools

Excel

JMP

Minitab

XRD

SIMS

ECV profiling

Job description

Lumentum in San Jose, CA is seeking a highly skilled PhD-level researcher to advance epitaxial growth and device integration for VCSEL and III/V semiconductor platforms. You will design growth recipes, analyze wafer data, and collaborate with cross-functional teams to push performance and reliability.

We value hands-on experience with MBE/MOCVD, wafer analysis (PL, XRD, SIMS), and strong data analytics (Python/ Matlab). Excellent communication and IP-focused thinking are essential.