Staff Wafer-level Testing Engineer (Operations & Process)

The role

This person will own and improve wafer-level test processes and production operations. They will work with internal engineering teams and external manufacturing partners to ensure efficient testing.

What you will do

• Own and continuously improve wafer-level test processes.
• Lead setup, qualification, and operation of automated wafer probers, optical alignment systems, and ATE.
• Drive day-to-day wafer-level test operations and monitor production performance.
• Develop, optimize, and qualify wafer-level test processes and operating procedures.
• Establish and maintain process specifications, control plans, and monitoring methodologies.
• Monitor wafer-level test yield and defect performance to lead improvement activities.
• Analyze wafer-level test data to identify trends and systematic failures.
• Develop and maintain test process specifications, work instructions, and qualification reports.
• Drive improvements in test cycle time, throughput, yield, and manufacturing cost.
• Lead structured improvement activities using DOE, SPC, Six Sigma, and root-cause analysis.

Required qualifications

• Bachelor’s degree in Electrical Engineering, Electronics Engineering, Microelectronics, Physics, Optical Engineering, Semiconductor Engineering, or a closely related discipline.
• Minimum 5 years of experience in semiconductor wafer-level testing, wafer sort, test process engineering, manufacturing operations, parametric test process engineering within semiconductor fab, OSAT,
• Strong analytical and problem-solving skills.
• Proficiency in data analysis software (e.g., JMP, Spotfire, Python, R).
• Strong understanding of wafer-level test processes, test flow development, process control, yield management, and production test methodologies.
• Strong cross-functional communication and project management skills.

Nice to have

• Experience in photonics, silicon photonics, optical devices, or advanced semiconductor packaging

Benefits

• Competitive salary and benefits
• Opportunities for career advancement
• Work with a world-class team solving cutting-edge challenges
• Collaborative and innovative work environment

About the company

Lumilens is building photonics infrastructure for AI supercomputing. It is a well-funded startup backed by Mayfield.