As a Design Engineer: Optical Sensor System - Integrated Optics, you will help develop advanced optical technologies used in ASML lithography systems. These systems enable the production of faster, more powerful, and more energy-efficient microchips that power everyday technologies around the world.
Based in Wilton, Connecticut, this role combines optical design, photonic integration, simulation, testing, and system validation. As a Design Engineer: Optical Sensor System - Integrated Optics, you will work with multidisciplinary teams to develop measurement and sensing solutions that support the future of semiconductor manufacturing.
As a Design Engineer: Optical Sensor System - Integrated Optics, you will contribute to the design, analysis, testing, and validation of advanced optical sensing technologies. You will work in laboratory environments and on full-scale systems while collaborating with engineers and researchers across multiple disciplines.
You will:
- Design and evaluate integrated optical and photonic sensor solutions.
- Perform optical simulations and analyze system performance data.
- Develop and maintain test software using MATLAB, LabVIEW, or similar tools.
- Plan, execute, and document laboratory and system-level experiments.
- Investigate technical issues and identify root causes of performance challenges.
- Collaborate with engineers, researchers, suppliers, and cross-functional teams.
- Communicate technical findings and recommend design improvements.
- Master's degree with 4+ years of relevant experience, or a Doctor of Philosophy (PhD) degree.
- Degree in Optical Engineering, Optics, Physics, Electrical Engineering, or a closely related field.
- Experience with integrated optics, photonic integrated circuits, or optical sensor systems.
- Experience using MATLAB, Lumerical, LabVIEW, KLayout, or related engineering tools.
- Experience conducting optical testing, characterization, alignment, or laboratory-based experimentation.
- Experience translating technical requirements into practical engineering solutions.
Working at the cutting edge of tech, you’ll always have new challenges and new problems to solve – and working together is the only way to do that. You won’t work in a silo. Instead, you’ll be part of a creative, dynamic work environment where you’ll collaborate with supportive colleagues. There is always space for creative and unique points of view. You’ll have the flexibility and trust to choose how best to tackle tasks and solve problems.
To thrive in this job, you’ll need the following skills:
- Apply optics, physics, and engineering principles to solve complex problems.
- Analyze data and draw clear, evidence-based conclusions.
- Collaborate effectively across teams with diverse technical backgrounds.
- Communicate technical information to both technical and non-technical audiences.
- Troubleshoot complex systems using a structured and analytical approach.
- Demonstrate ownership, accountability, and attention to detail.
- Adapt quickly to evolving priorities and new technologies.
- Build productive working relationships with internal and external partners.
- Drive continuous improvement and identify opportunities for innovation.
- Manage multiple tasks while maintaining high quality standards.
The current base annual salary range for this role is currently:
$0-0Pay 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.
The Company offers employees and their families, medical, dental, vision, and basic life insurance. Employees are able to participate in the Company’s 401k plan. Employees will also receive eight (8) hours of vacation leave every month and (13) paid holidays throughout the calendar year. For more information, please contact the Recruiter or click on this link Compensation & Benefits in the US.
All new ASML jobs have a minimum application deadline of 10 days.
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 diversityASML 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 AccommodationASML 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 [email protected] 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.
Skills Required
- Master's degree with 4+ years of relevant experience, or a PhD degree
- Degree in Optical Engineering, Optics, Physics, Electrical Engineering, or a closely related field
- Experience with integrated optics, photonic integrated circuits, or optical sensor systems
- Experience using MATLAB, Lumerical, LabVIEW, KLayout, or related engineering tools
- Experience conducting optical testing, characterization, alignment, or laboratory-based experimentation
- Experience translating technical requirements into practical engineering solutions
ASML Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about ASML and has not been reviewed or approved by ASML.
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Healthcare Strength — Health coverage is broad and employer‑funded to a significant degree, with multiple plan options plus mental health and wellness resources. Complementary offerings like onsite/virtual care, HSA contributions, and a gym subsidy strengthen the overall medical package.
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Parental & Family Support — Family‑forming benefits include paid parental leave, adoption assistance, IVF coverage, and practical supports like lactation rooms and milk‑shipment for travel. These provisions indicate substantial caregiving support across life stages.
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Leave & Time Off Breadth — Paid time off can reach a high ceiling when combining vacation and company holidays, with accruals increasing by tenure. Flexible workplace policies and a vacation sell‑back option add usability to the time‑off program.
ASML Insights
What We Do
ASML is a high-tech company, headquartered in the Netherlands. We manufacture the complex lithography machines that chipmakers use to produce integrated circuits, or computer chips. Over 30 years, we have grown from a small startup into a multinational company with over 60 locations across Europe, Asia and the US. Behind ASML’s innovations are engineers who think ahead. The people who work at our company include some of the most creative minds in physics, electrical engineering, mathematics, chemistry, mechatronics, optics, mechanical engineering, computer science and software engineering. Because ASML spends more than €2 billion per year on R&D, our teams have the freedom, support and resources to experiment, test and push the boundaries of technology. They work in close-knit, multidisciplinary teams, listening to and learning from each other.








