Equipment Repair & Maintenance Technician

Night Shift Equipment Maintenance Technician

Lumentum is seeking a Night Shift Equipment Maintenance Technician to support 24/7 manufacturing of advanced photonic and optoelectronic devices. This role is responsible for sustaining lithography and vacuum-based semiconductor processing equipment used in the fabrication of lasers, optical components, and III-V devices. The technician will perform hands-on troubleshooting, maintenance, and real-time production support to ensure high equipment uptime, process stability, and product quality during overnight operations.

• Equipment Monitoring & Troubleshooting
  • Monitor and maintain performance of lithography and vacuum-based processing equipment, including steppers, mask aligners, coat/develop tracks, vacuum chambers and pumping systems (dry pumps, turbomolecular pumps, forelines)
  • Rapidly diagnose and resolve equipment faults, alarms, vacuum leaks, and process deviations.
  • Perform safe and efficient tool recoveries to return equipment to production.
• Vacuum Systems Support
  • Maintain and troubleshoot high and ultra-high vacuum (HV/UHV) systems used in semiconductor processing.
  • Diagnose issues related to vacuum integrity (leaks, pressure instability), pump performance (mechanical, turbo, cryo where applicable), valves, gauges, mass flow, and gas delivery systems.
  • Perform pump swaps, rebuild coordination, and chamber conditioning as required.
  • Support vacuum system calibration and ensure compliance with process specifications.
• Preventive & Corrective Maintenance
  • Execute scheduled PMs on lithography and vacuum equipment to ensure reliability and precision.
  • Perform corrective maintenance including component replacement (seals, O-rings, pumps, sensors), system calibration and alignment, cleaning and rebuild activities for vacuum chambers.
  • Update and improve maintenance procedures where applicable.
• Production Support
  • Support manufacturing operations to maintain continuous production of photonic devices.
  • Escalate complex equipment or vacuum-related issues with detailed documentation.
• Lithography & Process Support
  • Assist in controlling critical lithography parameters: critical dimension (CD) uniformity, overlay/alignment accuracy, defectivity reduction.
  • Ensure stable resist processing and exposure conditions within controlled vacuum/cleanroom environments where applicable.
• Data Collection & Shift Communication
  • Log equipment performance, downtime events, and maintenance activities.
  • Provide comprehensive shift handoff reports detailing tool status and open issues.
  • Support engineering teams with data collection for root cause analysis.
• Continuous Improvement
  • Identify opportunities to improve equipment reliability, vacuum performance, and uptime.
  • Participate in improvement projects related to vacuum system stability, tool availability and throughput.
  • Recommend enhancements to spare parts strategies and PM schedules.

• Associate degree or technical certification in Electronics, Mechanical Engineering Technology, Mechatronics, or related field (or equivalent experience).
• 2+ years of experience in semiconductor, photonics, or precision manufacturing.
• Hands-on troubleshooting experience with complex manufacturing equipment.
• Working knowledge of mechanical, electrical, pneumatic systems, vacuum systems and gas handling fundamentals.
• Willingness to work a permanent night shift schedule (including weekends/holidays).

• Experience with lithography equipment (ASML, Canon, Nikon, SUSS, TEL tracks).
• Experience supporting vacuum-based semiconductor tools (e.g., deposition, etch, implant).
• Familiarity with high vacuum (HV/UHV) systems, leak detection techniques, and pump technologies.
• Exposure to III-V or photonics manufacturing (InP, GaAs, lasers, optical components).
• Ability to read schematics, P&IDs, and vacuum system diagrams.
• Experience with automation, robotics, or PLC systems.
• Basic data analysis skills (Excel, JMP).

• Strong troubleshooting skills in both lithography equipment and vacuum systems
• Ability to work independently during off-shift hours
• High sense of urgency and ownership in a production environment
• Detail-oriented with strict adherence to procedures and cleanliness standards
• Clear communication for shift handoffs and escalation

• Semiconductor cleanroom environment supporting photonics manufacturing
• Frequent interaction with vacuum systems, gas lines, and precision optical equipment
• Strict adherence to contamination control and EHS standards
• Physically active role (standing, lifting, working on equipment)
• Night shift schedule (10–12 hour shifts; compressed workweek possible)
• Shift differential and overtime opportunities

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with…