INTERNSHIP DETAILS

Co-op - Optical Engineer (Internship)

CompanyASML
LocationWilton
Work ModeOn Site
PostedOctober 28, 2026
Internship Information
Core Responsibilities
The intern will support and develop complex optical and photonic sensor systems for photolithography tools. Responsibilities include debugging performance issues, executing complex tests, and implementing data analysis techniques.
Internship Type
full time
Salary Range
$18 - $48
Company Size
37084
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Who are we? ASML is an innovation leader in the global semiconductor industry. We make machines that chipmakers use to mass produce microchips. Founded in 1984 in the Netherlands with just a handful of employees, we’ve now grown to over 40,000 employees, 143 nationalities and more than 60 locations around the world. What do we do? We provide chipmakers with hardware, software and services to mass produce patterns on silicon through lithography. Our lithography systems use ultraviolet light to create billions of tiny structures on silicon that together make up a microchip. We push our technology to new limits to enable our customers to create smaller, faster and more powerful chips. Who are our people? While you may think that only engineers and mathematicians work at ASML, you'll be surprised to find out that our people come from a wide variety of backgrounds. Across ASML, we have dedicated teams that manage customer support, communications and media, IT, software development and more. Every team in the company is essential for pushing our technology and the industry forward. If you love to tackle challenges and innovate in a collaborative, supportive and inclusive environment with all the flexibility and freedom to unleash your full potential, ASML is the place to be. Join us!
About the Role

Introduction to the job

ASML’s Optical Sensor Group in Wilton CT is seeking a Physicist/Optical Engineer for a Co-op position (6 to 9 months) to support & develop complex optical / photonic sensor systems used within ASML’s photolithography tools. These systems typically include light sources, detectors, optical / electro-optical components, fiber optics, electronics and signal processing SW functioning in close collaboration with the rest of the lithography system. Understanding the components in their relation to the sensor system and understanding the interaction with the rest of the tool is of fundamental importance.


Roles and Responsibilities

  • General:  Using general Physics, Optics, and Software knowledge and an understanding of the sensor systems and tools to de-bug functionality or performance issues in the optical alignment sensors.  Having hands-on skills of building optical system such as imaging, testing, alignment or detector system.
  • Leadership:  the candidate must have the potential to lead executing activities for determining problem root cause, execute complex tests, gather data, and effectively communicate results on different levels of abstraction (from technical colleagues to high level managers)
  • Problem Solving:  the candidate should be interested in troubleshooting complex technical problems, develop / debug data signal processing algorithms; develop and execute test plans in order to determine problem root cause;
  • Communications/Teamwork:  Good communication skills during brainstorm/troubleshooting sessions; Good listening skills. Good analytical skills. Draw your own conclusions, based on the input from different stakeholders.  Capability to clearly communicate the information on different level of abstraction.
  • Programming: The candidate must possess the ability to implement data analysis techniques into functioning MATLAB codes. Optimization skills, GUI building experience, and familiarly with Labview and Python are a plus.


This position is located on-site in Wilton, CT. It requires onsite presence to attend in-person work-related events, trainings and meetings and to further ensure teamwork, collaboration and innovation. Must be available for 6 months with the start date being flexible based on Spring or Fall Semester.


Education and Experience:

Minimum: Candidate should be a Master student in Physics, Optics, or other related engineering disciplines.

  • Familiarity with light sources, lasers
  • Data Analysis
  • Python or Matlab

The current base hourly range for this role is currently:

$18.00 to $48.00 per hour

 

Pay scales are determined by role, level, location and alignment with market data. Individual pay is determined through interviews and an assessment of several factors that that are unique to each candidate, including but not limited to job-related skills, relevant education and experience, certifications, abilities of the candidate and pay relative to other team members


This position may require 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 the Company 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.

Need to know more about applying for a job at ASML? Read our frequently asked questions.

Key Skills
PhysicsOpticsOptical EngineeringPhotonic Sensor SystemsMatlabPythonLabviewData AnalysisSignal ProcessingTroubleshootingOptical AlignmentImagingLasersLight SourcesAlgorithm Development
Categories
EngineeringScience & ResearchTechnologySoftwareManufacturing