Optical Engineer (Internship)
ASML
This job at a glance
- Who can apply
- New grads and up to 1 year
- Must know
- MATLAB
- Work
- On-site in Wilton Center · internship
- Pay
- Not stated by the employer.
- Skill demand
- MATLAB10%of 99 similar entry-level jobs posted in the US this week
- Listed
- Oct 29, 2026 · still open
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About the Role
- Co-op position focusing on optical engineering for the YieldStar Sensor Group in Wilton, CT.
- Project duration of at least 6 months, supporting current or future YieldStar products.
- Candidate will support and develop optical/photonic sensor systems within ASML’s photolithography tools.
Key Responsibilities
- Perform Optical design, optical tolerancing, and modeling with CodeV and/or Zemax.
- Conduct Physical Optics Simulation (wave propagation, partial coherence calculation, Polarization optics modeling, and other optical effects) in MATLAB, FRED, CodeV, or other suitable design tools.
- Build and align complex sensors using diverse mechanical, collimation, and interferometry techniques.
- Work with diverse optical devices and sensors: objectives, collimation and relay optics, fibers, cameras, and detectors.
Requirements & Tech Stack
- CodeV or equivalent SW package for optical design and tolerancing.
- FRED or equivalent SW package for physical optics modeling.
- Experience with optical sensor alignment using diverse alignment strategies and tools like optical collimators, mechanical gaging, and interferometers.
- Experience in optical sensor metrology test design and build.
- Expertise with diverse optical technologies and devices: polarization devices, relays, objectives, light sources, fibers, cameras, and detectors.
Qualifications
- Currently pursuing a degree in optical engineering or closely related areas of engineering and physics.
- Preference for candidates pursuing Master or Ph.D. degrees.
- Undergraduate students with specific expertise in key areas of optical design and optical systems will be considered.
- Demonstrates experience in:
- Optical design and tolerancing using CodeV or equivalent SW package.
- Physical optics modeling with FRED or equivalent SW package.
- Optical sensors alignment experience using diverse alignment strategy and tools.
- Optical sensor metrology test design and build.
- Expertise with diverse optical technologies and devices.
- Interpersonal Skills:
- Ability to observe and respond to people and situations and interact with others.
- Ability to learn and apply new information or skills.
- Ability to read and interpret data, information, and documents.
- Strong customer focus and commitment to customer satisfaction.
- Attention to detail and high degree of accuracy.
- Proven ability to perform effectively in a demanding environment with changing workloads and deadlines.
- Result driven, demonstrate ownership and accountability.
- Identifies bottlenecks and drives improvements.
- Ability to work independently or as part of a team and follow through on assignments with minimal supervision.
- Demonstrate open, clear, concise and professional communication.
- Ability to establish and maintain cooperative working relationships with manager, co-workers, and customers.
- Ability to work according to a strict set of procedures within provided timelines.
- Other Requirements:
- Position is located on-site in Wilton, CT.
- Requires on-site presence for work-related events, trainings, and meetings.
- Physical demands: sit; walk; talk; hear; use hands to keyboard, finger, handle and feel; stoop, kneel, crouch, twist, reach and stretch.
- Occasionally required to move around the campus.
- Occasionally lift and/or move up to 20 pounds.
- Specific vision abilities: close vision, color vision, peripheral vision, depth perception, and ability to adjust focus.
- Willingness to work in a cleanroom environment, wearing coveralls, hoods, booties, safety glasses, and gloves for the entire duration of the shift.
- Must be legally authorized to access controlled technology.