Spherical CNC Process Engineer_ Wilton Factory Optics

ASML; Wilton (CT); On-site; USD 110,000 - 150,000; Full time

Job summary

ASML in Wilton, CT seeks a senior Process Engineer to lead optical fabrication, drive continuous improvement, and partner with engineering, quality, and production to advance equipment capability and product performance.

The role requires 10+ years in optical fabrication process engineering, hands-on experience with CNC machining, polishing, metrology, and strong RCA/lean skills. Expect cross-functional collaboration and global supplier interaction.

Qualifications

• Bachelor's or Master's in Engineering or related field.
• Hands-on optics fabrication experience including CNC machining and polishing.
• Proficiency in RCA and lean manufacturing tools.

Responsibilities

• Champion a safety-first culture by identifying hazards and ensuring EHS compliance.
• Develop complex spherical optics on precision CNC Generators, High-Speed Polishers, and centering machines.
• Implement advanced machining strategies and tooling designs for continuous improvement.
• Optimize cycle times, toolpaths, feeds/speeds, and fixturing for quality and throughput.
• Collaborate with cross-functional teams to resolve technical challenges and implement sustainable solutions.
• Diagnose and resolve machining issues related to tooling, fixturing, programming and equipment behavior.
• Partner with maintenance and vendors to address machine performance and reliability concerns.
• Analyze machining performance using SPC, capability studies, and data-driven problem solving.
• Define process specs and control limits; use JMP/Minitab to drive data-driven decisions.
• Perform hands-on process trials and support qualification of new equipment, materials, and process changes.
• Support root-cause analysis and corrective actions for quality deviations.
• Drive 5S and workplace organization around CNC areas.

Skills

Spherical optics

DOE & Six Sigma

NX

Mastercam

JMP/Minitab

SAP/MES

Cleanroom protocols

Education

Engineering degree (Bachelors/Masters)

Tools

NX

Mastercam

Job description

Introduction to the job

This position is for a highly skilled, innovative, and motivated Process Engineer to join the ASML Wilton Factory Optical Fabrication team. This role supports daily manufacturing operations, drives continuous improvement, and partners closely with engineering, quality, and production teams to advance equipment capability and product performance.

Introduction to the job

This position is for a highly skilled, innovative, and motivated Process Engineer to join the ASML Wilton Factory Optical Fabrication team. This role supports daily manufacturing operations, drives continuous improvement, and partners closely with engineering, quality, and production teams to advance equipment capability and product performance.

Role and responsibilities

• Champion a safety-first culture by identifying potential hazards, implementing risk mitigation strategies, and ensuring all work adheres to established EHS safety protocols


• Develop complex spherical optics on precision CNC Generators, High-Speed Polishers, and centering machine.


• Implement advanced machining strategies and tooling designs for continuous improvement efforts.


• Optimize cycle times, toolpaths, feeds/speeds, and work holding to improve quality and throughput


• Collaborate with cross-functional teams including production, quality, and metrology to resolve technical challenges and implement sustainable solutions


• Diagnose and resolve machining issues related to tooling, fixturing, programming, and equipment behavior


• Partner with maintenance and vendors to address machine performance, repeatability issues, or reliability concerns


• Analyze machining performance using SPC, capability studies, and data-driven problem solving


• Define process specifications and control limits; utilize statistical analysis tools (e.g., JMP, Minitab) to evaluate process capabilities and drive data-driven decision-making and maintaining 6P=P from feasibility to production-readiness phases


• Perform hands‑on process trials and support qualification of new equipment, materials, and process changes to enhance production performance


• Support root‑cause analysis and corrective actions for quality deviations or nonconformances


• Drive 5S and workplace organization around CNC areas

Education and experience

• Bachelor's or Master's degree in Engineering (Mechanical, Optical, Materials, or related field)


• Minimum 10+ years of experience in optical fabrication process engineering or a related manufacturing environment


• Hands‑on experience with optics fabrication techniques, including CNC machining, polishing, and surface inspection


• Proficient in root cause analysis (RCA) and lean manufacturing tools


• Familiarity with metrology techniques and quality assurance in optics manufacturing


• Demonstrated ability to lead problem‑solving initiatives and implement process improvements


• Excellent communication and teamwork skills, with ability to work effectively across different departments


• Ability to manage multiple priorities and deliver results under tight deadlines

Skills

• Manufacturing of spherical or plano optical elements


• Knowledge of Design of Experiments (DOE) and Six Sigma methodologies


• Solid Modeling Software, NX


• CAM Software, Mastercam


• Proficiency in data analysis tools such as JMP, Minitab, or equivalent software


• Experience with SAP or MES systems


• Knowledge of cleanroom protocols and practices

Other information

The physical demands described below represent those required to successfully perform the essential functions of this Process Engineer role. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

• Regular computer work requiring sitting, typing, and precise hand‑eye coordination


• Frequent movement within the optics fabrication floor and office environments


• Occasional need to lift or move equipment, tooling, or materials weighing up to 20 pounds


• Required visual abilities include close vision, color differentiation (for inspection and analysis), and the ability to interpret detailed technical information


• Work performed primarily in an optics fabrication environment that may include exposure to noise, vibration, and various processing equipment


• Must be able to wear required PPE (personal protective equipment) including safety glasses, hearing protection, and other protective equipment as required in manufacturing areas


• Ability to analyze complex data, interpret technical documents, and communicate findings effectively


• Capability to respond to production issues in a timely manner, which may occasionally require extended periods of standing or walking through production areas with various fabrication equipment


• Some travel may be required to support global manufacturing and supplier interactions


• Candidates must be legally authorized to work in USA

This position requires access to controlled technology, as defined in the Export Administration Regulations (15 C.F.R.

• 730, et seq.). Qualified candidates must be legally authorized to access such controlled technology prior to beginning work. Business demands may require ASML to proceed with candidates who are immediately eligible to access controlled technology.

Additional Responsibilities

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

This position requires access to controlled technology, as defined in the United States Export Administration Regulations (15 C.F.R. 730, et seq.). Qualified candidates must be legally authorized to access such controlled technology prior to beginning work. Business demands may require ASML to proceed with candidates who are immediately eligible to access controlled technology.

Inclusion and diversity

ASML is an Equal Opportunity Employer that values and respects the importance of a diverse and inclusive workforce. It is the policy of the company to recruit, hire, train and promote persons in all job titles without regard to race, color, religion, sex, age, national origin, veteran status, disability, sexual orientation, or gender identity. We recognize that inclusion and diversity is a driving force in the success of our company.

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Request an Accommodation

ASML provides reasonable accommodations to applicants for ASML employment and ASML employees with disabilities. An accommodation is a change in work rules, facilities, or conditions which enable an individual with a disability to apply for a job, perform the essential functions of a job, and/or enjoy equal access to the benefits and privileges of employment. If you are in need of an accommodation to complete an application, participate in an interview, or otherwise participate in the employee pre‑selection process, please send an email to [e-mail] to initiate the company’s reasonable accommodation process.

Please note: This email address is solely intended to provide a method for applicants to initiate ASML’s process to request accommodation(s). Any recruitment questions should be directed to the designated Talent Acquisition member for the position.