Optical Engineer (Internship)

ASML

Wilton Center, CTFresher1h agovia LinkedInH-1B sponsor · 35 entry-level filings

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.

H-1B sponsor

Asml Us filed 35 entry-level H-1B applications for new hires (Oct 2025 - Jun 2026, Department of Labor).

See their H-1B record →

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