Co-Op - Optical Engineer; Internship

Introduction

ASML US, including its affiliates and subsidiaries, develops lithography machines that enable the world’s leading chipmakers to produce faster, cheaper, and more energy‑efficient microchips. The Yield Star Sensor Group in Wilton, CT seeks a co‑op for at least six months focused on optical engineering to support current and future Yield Star products.

Work on optical engineering projects related to the design and development of optical/photonic sensor systems used in ASML’s photolithography tools.

• Perform optical design, tolerancing, and modeling using CodeV and/or Zemax.
• Conduct physical optics simulations (wave propagation, partial coherence, polarization optics) in MATLAB, FRED, CodeV, or other suitable tools.
• Build and align complex sensors using mechanical, collimation, and interferometry techniques.
• Maintain working knowledge of diverse optical devices and sensors such as objectives, relay optics, fibers, cameras, and detectors.

Pursuing a degree in optical engineering or a closely related field of engineering or physics. Preference for students enrolled in a Master’s or Ph.D. program; undergraduate candidates with specific expertise in key areas of optical design and systems may also be considered.

Must have experience in at least one of the following areas:

• Optical design and tolerancing with CodeV or an equivalent software package.
• Physical optics modeling with FRED or an equivalent software package.
• Optical sensor alignment using diverse alignment strategies and tools such as optical collimators, mechanical gauges, and interferometers.
• Optical sensor metrology test design and construction.
• Expertise with diverse optical technologies and devices, including polarization devices, relay optics, objectives, light sources, fibers, cameras, and detectors.

• Strong interpersonal communication and collaboration skills.
• Ability to learn and apply new information or skills efficiently.
• Capacity to read and interpret technical data, information, and documents.
• Strong customer focus and commitment to quality, efficiency, and professionalism.
• High attention to detail and commitment to accuracy.
• Ability to perform effectively in a demanding environment with changing workloads and deadlines.
• Result‑driven with ownership and accountability.
• Identifies bottlenecks and drives improvements.
• Works independently or as part of a team with minimal supervision.
• Professional, clear, and concise communication.
• Maintains cooperative working relationships with managers, coworkers, and customers.
• Adheres to strict procedures within provided timelines.

• Position is located on‑site in Wilton, CT and requires attendance at in‑person events, training, and meetings for collaboration and innovation.
• Typical physical requirements include sitting, walking, talking, hearing, and using hands for keyboard, finger, and handling tasks; stooping, kneeling, crouching, twisting, reaching, and stretching.
• Occasional movement around the campus and lifting or moving up to twenty pounds.
• Specific vision abilities required: close vision, color vision, peripheral vision, depth perception, and focus adjustment.
• Must be willing to work in a clean‑room environment, wearing coveralls, hoods, booties, safety glasses, and gloves for the entire shift.

Potential candidates will meet the education and experience requirements provided above and excel in performing the listed responsibilities. All candidates receiving an offer of employment must successfully complete a background check and any other required tests.

Exposure to strong magnetic fields, high voltage, and currents may occur.

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 obligate ASML to proceed with candidates who are immediately eligible to access controlled technology.

ASML is an Equal Opportunity Employer that values and respects diversity and inclusion. We recruit, hire, train, and promote individuals in all job titles without regard to race, color, religion, sex, age, national origin, veteran status, disability, sexual orientation, or gender identity.

ASML provides reasonable accommodations to applicants for employment and employees with disabilities. If an accommodation is required to complete an application, interview, or pre‑selection process, please email to initiate the process. For recruitment questions, contact the designated Talent Acquisition member for this position.