CNC Process Engineer

ASML Germany GmbH; Wilton (CT); On-site; USD 140,000 - 190,000; Full time

Job summary

ASML Wilton Factory is seeking a highly skilled Process Engineer to join the Optical Fabrication team. You will support daily manufacturing operations and drive continuous improvement to advance equipment capability and product performance.

Requirements include a BS or MS in Engineering and 10+ years in optical fabrication, with hands-on CNC machining, polishing, surface inspection, and RCA. You will lead cross-functional initiatives, analyze data, and implement lean practices in a fast-paced

Qualifications

• BS or MS in Engineering (Mechanical/Optical/Materials) required.
• 10+ years in optical fabrication process engineering or related manufacturing.
• Hands-on optics fabrication: CNC machining, polishing, and surface inspection.
• Proficient in RCA and lean manufacturing tools.
• Familiar with metrology techniques and quality assurance in optics manufacturing.
• Demonstrated ability to lead problem-solving initiatives and implement process improvements.
• Excellent communication and teamwork across departments.
• Able to manage multiple priorities and deliver results under tight deadlines.

Responsibilities

• Champion safety culture and ensure EHS compliance.
• Develop, document, and improve CNC processes and workflows.
• Optimize cycle times, toolpaths, feeds/speeds, and fixturing.
• Collaborate with production, quality, and metrology to resolve issues.
• Diagnose machining issues related to tooling and equipment.
• Partner with maintenance and vendors on machine performance and reliability.
• Analyze machining performance using SPC and data-driven problem solving.
• Define process specs and use statistics to drive decisions and 6P from feasibility to production-readiness.
• Perform hands-on process trials and support qualification of new equipment/materials.
• Support root-cause analysis and corrective actions for deviations or nonconformances.
• Drive 5S and workplace organization around CNC areas.

Skills

Optical fabrication

CNC machining

Polishing

Surface inspection

Root cause analysis

Lean manufacturing

Metrology

Cross-functional teamwork

Data-driven decisions

Communication skills

Project leadership

Education

Bachelor's or Master's in Engineering (Mechanical/Optical/Materials)

Tools

NX

Mastercam

JMP

Minitab

SAP or MES

Job description

ASML US brings together the most creative minds in science and technology to develop lithography machines that are key to producing faster, cheaper, more energy-efficient microchips. We design, develop, integrate, market and service these advanced machines, which enable our customers - the world’s leading chipmakers - to reduce the size and increase the functionality of their microchips, which in turn leads to smaller, more powerful consumer electronics. Our headquarters are in Veldhoven, the Netherlands, and we have 18 office locations around the United States.

Job Description

This position is for a highly skilled with innovative attitude and motivated Process Engineer to join 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, document, and improve CNC machining processes, programs, and workflows for new and existing products.
• 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., JSP, 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.

Required Qualifications

• 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

Preferred Qualifications

• Experience in a semiconductor or CNC manufacturing environment
• 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

Additional 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

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.