Optical Manufacturing: Chemical Process Engineer

ASML US, LLC; Wilton (CT); On-site; USD 95,000 - 135,000; Full time

Job summary

ASML US in Wilton, CT seeks a skilled Chemical Engineer to own and optimize manufacturing chemistries used in Milling and Polishing, including coolants, slurries, filtration, and fluid management. The role partners with Production Engineering, Quality, EHS, Supply Chain, and suppliers to ensure safe, controlled chemical processes for world-class optics.

Responsibilities include defining specs, operating windows, and process controls; developing standard work; and leading investigations for

Qualifications

• Bachelor's degree in Chemical Engineering or related technical discipline.
• Minimum 5 years in manufacturing process engineering or chemical process development.
• Experience with coolants, slurries, process fluids, and chemical delivery systems.
• Strong understanding of fluid chemistry, contamination control, filtration, and monitoring methods.
• Experience applying SPC, root cause analysis, and data-driven problem solving.
• Ability to lead cross-functional problem solving and change management.

Responsibilities

• Own coolant, slurry, and chemistry processes in milling and polishing operations.
• Develop specifications, operating windows, controls, and reaction plans.
• Create standard work for chemical prep, handling, and changeouts.
• Define contamination control requirements to protect optical quality.

Skills

Chemical engineering

Manufacturing

Process monitoring

DOE / Six Sigma

Data analysis

Education

Bachelor's degree in Chemical Engineering

Tools

SAP

MES

Excel

Python

Power BI

Job description

ASML US in Wilton, CT seeks a skilled Chemical Engineer to own and optimize manufacturing chemistries used in Milling and Polishing, including coolants, slurries, filtration, and fluid management. The role partners with Production Engineering, Quality, EHS, Supply Chain, and suppliers to ensure safe, controlled chemical processes for world-class optics.

Responsibilities include defining specs, operating windows, and process controls; developing standard work; and leading investigations for