Senior Process Engineer – Optical Fabrication

About this role

Job ID: J-00341819 Job Summary 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 Description The Senior Process Engineer will operate as a technical leader within Optical Fabrication with end-to-end ownership of grinding and polishing processes. Responsibilities include defining and optimizing process parameters, ensuring removal rate stability, selecting consumables, and understanding machine behavior. The engineer will manage polishing performance, conditioning strategies, coolant control, and subsurface damage removal while ensuring consistent behavior across tools and shifts

The polishing scope includes control of pitch and pad behavior, slurry delivery, plate geometry, pressure and weight control, and other factors influencing removal rate, figure, roughness, and defectivity. The PE will lead the introduction and qualification of new pad materials, slurry chemistries, pitch recipes, and machine upgrades, and will convert interferometry, profilometry, and surface inspection data into actiona

Apply for this role on ASML’s official careers site.