Advanced Processing Cleaning & Contamination Engineer

In Wilton, Connecticut, ASML operates a fast-paced, high-technology manufacturing environment where precision cleaning and contamination control are critical. This Advanced Processing Cleaning & Contamination Engineer role focuses on developing and industrializing cleaning processes for high-value optical components, reducing particle and molecular contamination risks, and driving continuous improvement across cleaning operations and contamination test systems. You will lead equipment introductions and collaborate across engineering, operations, and lab teams to keep daily production stable.

Responsibilities

• Develop a deep understanding of precision optical cleaning requirements across all relevant departments.
• Evaluate, develop, and optimize chemical and ultrasonic cleaning methods for sensitive optical components.
• Identify common contaminants and implement effective removal strategies.
• Support and improve semiconductor‑grade cleaning technologies and cleanliness standards.
• Support contamination test systems, maintaining procedures, settings, and process improvements.
• Troubleshoot contamination‑related issues and provide support during escalations.
• Analyze process and test data to identify trends, stabilize operations, and reduce variation.
• Contribute to process improvements that enhance productivity and reduce defects.
• Generate high‑quality technical documentation such as engineering test plans, work instructions, equipment specifications, and qualification reports.
• Maintain documentation for contamination testing, lab processes, and cleaning systems.
• Apply Job Safety Analysis principles and collaborate with EHS to ensure safety and compliance.
• Lead new equipment projects from specification and vendor engagement through procurement, FAT/SAT, installation, and internal qualification.
• Assist with laboratory activities and support equipment maintenance and calibration.
• Support new product introduction (NPI) through qualification activities and documentation updates.
• Collaborate with engineering, operations, and lab teams to maintain stable processes and support daily production needs.
• Support KPI tracking, reporting, and data‑driven decision making.
• Engage with cross‑functional groups during escalations to diagnose and resolve contamination issues.

Requirements

• Master’s degree with 2+ years of relevant experience, or Bachelor’s degree with 6+ years of relevant experience in Chemical Engineering, Materials Science, Mechanical Engineering, or related fields.
• US work authorization without employer sponsorship.

Technologies

• Python
• MATLAB
• SPC
• JMP
• Minitab
• Microsoft Office

Additional Responsibilities

• There is potential for exposure to strong magnetic fields, high voltage and currents.

Inclusion and Diversity

ASML is an Equal Opportunity Employer that values and respects the importance of a diverse and inclusive workforce. The company recruits, hires, trains and promotes individuals in all job titles without regard to race, color, religion, sex, age, national origin, veteran status, disability, sexual orientation, or gender identity. Inclusion and diversity are viewed as driving forces in the company’s success.

Request an Accommodation

ASML provides reasonable accommodations to applicants and employees with disabilities. An accommodation is a change in work rules, facilities, or conditions that enables an individual with a disability to apply for a job, perform essential functions, and enjoy equal access to employment benefits. If you require an accommodation to complete an application, participate in an interview, or engage in the employee process, ASML will assess and provide appropriate support.