Technical Lead (Sustaining Engineer)

Join the Singapore-based Sustaining Engineering team as thetechnical projectowner for in-fab repair activity across KLA's China customer base. Partner with field engineers to diagnose complex tool issues, define root cause, and deliver engineering solutions - including plans of action (POAs), bills of materials (BOMs), and repair procedures - that enable efficient, first-time-right repairs in the fab. Effectively manage and prioritize multiple concurrent escalations across customers and tools.

Key Responsibilities

• OwnEscalation projectsfrom field in-fab repair teams in China drive issues to closure with clear technical ownership.

• Manage multiple escalations and sites in parallel:Triage, prioritize, and sequence concurrent escalations across multiple customer sites based on customer impact, tool downtime, and business urgency - for both own workload and the field in-fab repair team's activities.

• Project management:Plan and track escalation milestones, dependencies, and deliverables coordinate cross-functional stakeholders (field, HQ engineering, logistics, supply chain) to keep repair projects on schedule.

• Root-cause analysis:Investigate failure modes using tool logs, repair history, engineering data, and field input isolate mechanical, electrical, optical, or software root causes.

• Direct field troubleshooting:Guide in-fab repair engineers step-by-step through diagnostics and corrective actions provide real-time remote technical direction during live repair events.

• Author engineering deliverables:

• Plans of Action (POAs)outlining repair sequence, risks, and contingencies.

• Bills of Materials (BOMs)specifying parts, tooling, and consumables.

• Repair procedures and work instructionsvalidated for fab execution.

• Sustaining ownership:Partner with Design Engineering, Reliability, and Product Support to develop permanent fixes and engineering change orders for recurring field issues drive continuous improvement of installed-base tool reliability.

• Knowledge capture:Document root causes, solutions, and lessons learned into the knowledge base so field teams can self-serve on recurring signatures.

• Cross-region coordination:Bridge between China field teams and HQ engineering - translate field symptoms into engineering language and engineering solutions into field-executable steps.

• Travel:Certain travel required to customer sites in China and to HQ/engineering teams in the US to support escalations, engineering reviews, and knowledge transfer.

• Bachelor's or Master's degree inElectrical Engineering, Electronics Engineering, Opto-Mechanical Engineering, or related discipline.

• 5+ years of sustaining engineering, support engineering, or senior field service experience on semiconductor capital equipment (inspection, metrology, or similar precision tools preferred).

• Hands-on troubleshooting experience at the board level- ability to debug PCBAs using schematics, oscilloscopes, logic analyzers, DMMs, and signal-integrity tools diagnose down to component level (power rails, clocks, digital/analog interfaces, FPGA/DSP signals).

• Hands-on troubleshooting experience with opto-mechanical assemblies- alignment, calibration, and repair of precision optical paths, laser sources, sensors/detectors, mirrors, stages, and motion subsystems.

• Strong project management skills- demonstrated ability to run multiple concurrent escalations/projects, prioritize effectively under pressure, set clear next steps for self and field teams, and communicate status to stakeholders at all levels.

• Demonstrated ability to lead L4 escalations from triage through root cause to permanent corrective action.

• Strong working knowledge ofboard level troubleshooting, precision motion control, vacuum, high-voltage, and complex electromechanical subsystems.

• Proven ability to author clear POAs, BOMs, and repair procedures suitable for field execution in a cleanroom environment.

• Fluent written and spoken English working proficiency in Mandarin strongly preferred for direct collaboration with China field teams.

• Prior experience supporting customers and field teams in China.

• Experience collaborating with Design Engineering on ECOs and reliability/sustaining improvement programs.

What Success Looks Like (First 12 Months)

• Owns the L4 queue for China in-fab repairs end-to-end measurable reduction in escalation cycle time and repeat escalations.

• Concurrent escalations are clearly prioritized and tracked field in-fab repair team receives unambiguous direction on what to work on next.

• POAs, BOMs, and procedures are consistently adopted by field teams with minimal rework.

• Trusted point of contact for both China field leadership and HQ engineering on in-fab repair matters.

• Measurable improvement in first-time-fix rate and MTTR on tools supported by the role.