Principal Optical Process Engineer

Lumentum • San Jose, CA

4d • $134,750 - $192,500 • Onsite

About The Position

Lumentum is seeking a highly accomplished Optical Process Engineer to join its semiconductor manufacturing fab process team in San Jose, California. The role advances photolithography processes for optoelectronic solutions supporting cloud, network applications, and the growing AI market. Working as part of a team, the engineer will maintain existing optical systems and develop photolithography processes for Lumentum’s photonics chips. This is an on-site position requiring presence at Lumentum’s facility during business hours.

Requirements

• A Ph.D. or master's degree in Physics, Electrical Engineering, Materials Science, or a closely related discipline.
• Familiarity with optical inspection equipment, photolithography tools, and cleanroom protocols.
• Programming experience in Python, VBA macros, LabVIEW, or C++.
• Proficiency with statistical tools such as DOE and SPC, and data analysis software such as JMP or Minitab, to optimize process parameters and ensure quality control.
• Excellent communication skills and the ability to work effectively across multiple disciplines and with senior management.

Nice To Haves

• Hands-on experience with optical bench configuration, assembly of optical components, and routine maintenance protocols.
• Photolithography wafer patterning experience using the Displacement Talbot lithography method.

Responsibilities

• Lead the development, optimization, and implementation of photolithography processes for advanced semiconductor manufacturing nodes.
• Maintain optical holographic systems integrating lasers, optics, and hardware components.
• Develop and refine coherent optical systems, including interferometry setups and laser-based architectures.
• Partner with Design, Integration, and Equipment Engineering teams on new product and tool qualifications.
• Perform statistical data analysis and apply data-driven Six Sigma methodologies, including FMEA, Capability Analysis, SPC, DOE, and Design for Manufacturing, to improve processes, reduce defects, and minimize variation.
• Collaborate with cross-functional teams to meet fab yield targets, improve yield, reduce costs, and minimize cycle time.

Benefits

• Competitive total compensation packages, which may include an annual bonus, commission for certain sales roles, equity, and health and welfare benefits.

What This Job Offers

• Job Type: Full-time
• Career Level: Principal