Wafer-Level Test Equipment Lead — Reliability & Yield

Lumilens; Singapore; On-site; SGD 120,000 - 160,000; Full time

Benefits offered by this job

Competitive salary and benefits

Career advancement opportunities

Collaborative and innovative work环境

World-class team tackling cutting-edge

Job summary

Lumilens, a photonic AI computing startup, seeks an experienced engineer to own wafer-level testing equipment across manufacturing. You will drive equipment selection, installation, qualification, and ramp-up, while improving reliability and uptime in a fast-paced environment.

The role requires hands-on experience with wafer probing, handling, and automated test systems, plus strong cross-functional collaboration and project execution skills to support production ramps.

Qualifications

• Bachelor's degree in Mechanical Engineering, Electrical Engineering, Mechatronics, Automation Engineering, or a closely related discipline.
• Minimum 5 years of hands-on experience operating, troubleshooting, qualifying, and maintaining semiconductor wafer-level testing equipment.
• Strong understanding of wafer probing, wafer handling, test interfaces, probe cards, handlers, and automated wafer-level test systems.
• Strong experience in equipment troubleshooting, root-cause analysis, preventive maintenance, and corrective action.
• Experience with equipment performance metrics, including uptime, utilization, MTBF, MTTR, and equipment capability.
• Strong cross-functional communication and project management skills, with the ability to drive technical issues to closure across internal and external teams.
• Experience working with semiconductor wafer fabs, OSATs, wafer-level test houses, equipment suppliers, or other external manufacturing partners is highly preferred.
• Experience in photonics, silicon photonics, optical testing, or advanced semiconductor packaging is a strong advantage.

Responsibilities

• Lead the evaluation, selection, procurement, installation, qualification, and ramp-up of wafer-level testing equipment and associated infrastructure.
• Serve as the subject matter expert and equipment owner for wafer probers, wafer handling systems, test interfaces, probe cards, handlers, and associated test equipment and automation systems.
• Develop and execute equipment qualification plans, including installation qualification, operational qualification, performance qualification, and manufacturing readiness activities.
• Drive high equipment availability and utilization by proactively identifying constraints and minimizing unscheduled downtime.
• Establish and implement preventive and predictive maintenance programs to improve reliability and extend equipment life.
• Optimize equipment performance, capability, and utilization to support testing requirements and production ramp.
• Collaborate with WLT Operations/Process Engineering to ensure equipment meets test process requirements and production specs.
• Establish and monitor equipment performance metrics such as uptime, utilization, MTBF, MTTR, and maintenance efficiency.
• Manage equipment vendors and OSAT suppliers for upgrades, retrofits, and spare parts to prevent production line stops.
• Work with cross-functional teams to ensure successful equipment deployment and stable production execution.

Skills

Cross-functional communication

Project management

Root-cause analysis

Preventive maintenance

Equipment troubleshooting

Structured problem solving

Education

Bachelor's degree in Mechanical Engineering, Electrical Engineering, Mechatronics, Automation Engineering, or a closely related discipline

Tools

Wafer probers

Wafer handling systems

Test interfaces

Probe cards

Handlers

Automation systems

Job description

Lumilens, a photonic AI computing startup, seeks an experienced engineer to own wafer-level testing equipment across manufacturing. You will drive equipment selection, installation, qualification, and ramp-up, while improving reliability and uptime in a fast-paced environment.

The role requires hands-on experience with wafer probing, handling, and automated test systems, plus strong cross-functional collaboration and project execution skills to support production ramps.