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Senior Process Engineer – Optical Fabrication

United States, Wilton · Job Posted May 29, 2026
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Job Description

ASML Wilton is seeking a Senior Process Engineer to join the Optical Fabrication team with primary ownership of Generating & Polishing (GnP) processes. This role is responsible for process development, stabilization, and daily performance across grinding and polishing operations. The position requires a deep technical understanding of optical fabrication, strong analytical capability, and the ability to drive sustainable improvements in a fast-paced production environment. The engineer will directly support output, yield, and quality targets—including improving First Pass Yield (FPY) through stable, predictable, and well controlled process behavior. This role requires a proactive engineering mindset: anticipating issues before they impact production, driving structured 6P readiness, performing thorough RCA, and continuously evaluating new technologies and deterministic tools to strengthen long-term process control. This is not a reactive support role; the expectation is ownership, foresight, and continuous improvement.

Job Responsibility

  • Own generating and polishing processes
  • Process development, stabilization, and daily performance across grinding and polishing operations
  • Drive sustainable improvements in fast-paced production environment
  • Support output, yield, and quality targets including improving First Pass Yield
  • Anticipate issues before they impact production, drive structured 6P readiness, perform thorough RCA, continuously evaluate new technologies and deterministic tools
  • Define and optimize process parameters, ensure removal rate stability, select consumables, understand machine behavior
  • Manage polishing performance, conditioning strategies, coolant control, subsurface damage removal
  • Lead introduction and qualification of new pad materials, slurry chemistries, pitch recipes, machine upgrades
  • Convert interferometry, profilometry, and surface inspection data into actionable decisions
  • Establish strong process control: define process windows, capability targets, long-term monitoring systems
  • Use JMP or Minitab to identify variation, drift, and chronic stability risks
  • Maintain process specifications, work instructions, standard work
  • Collaborate daily with production technicians, supervisors, metrology, quality, equipment engineering, maintenance

Requirements

  • BS, MS, or PhD in Mechanical, Optical, Materials, or related engineering field
  • Minimum 5 years of experience in optical fabrication, precision machining, grinding, or polishing
  • Experience in grinding mechanics, polishing processes, metrology interpretation, and process development
  • Demonstrated ability in structured problem solving, data analysis, RCA, and process improvement
  • Strong understanding of grinding and polishing mechanics and material removal behavior
  • Proficiency with interferometry, profilometry, and surface inspection tools
  • Experience using JMP, Minitab, or equivalent statistical software
  • Strong communication, cross functional collaboration, and leadership in a production environment
  • Ability to manage multiple priorities under time sensitive conditions
  • Demonstrated capability in 6P readiness, structured RCA, and verification driven corrective action
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