Optical Sensor Engineer

ASML; Wilton (CT); Hybrid; USD 94,000 - 137,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Life insurance

401k plan

Vacation leave (8 hours per month)

13 paid holidays

Job summary

ASML in Wilton, CT is seeking an Optical Sensor Engineer to design, build, test, and refine advanced optical sensor systems for semiconductor manufacturing. You will work with multidisciplinary teams to enable precise wafer positioning and measurement, supporting deployment across consumer electronics and automotive applications.

The role emphasizes hands-on alignment, data analysis using MATLAB and Python, and clear communication of results to diverse audiences.

Qualifications

• Bachelor’s degree in physics, optics, electrical engineering, mechanical engineering, chemical engineering, or a related field, plus 2 or more years of relevant experience.
• Master’s degree in physics, optics, electrical engineering, mechanical engineering, chemical engineering, or a related field.
• Doctoral degree in physics, optics, electrical engineering, mechanical engineering, chemical engineering, or a related field.

Responsibilities

• Design and develop optical sensor systems that integrate light sources, detectors, optical components, electronics, and software.
• Build, align, test, and troubleshoot optical and photonic systems in laboratory environments.
• Analyze experimental and system performance data to identify issues and improve sensor functionality.
• Develop and execute test plans to investigate technical problems and determine root causes.
• Implement and refine data analysis tools using MATLAB and Python.
• Collaborate with engineers across optics, software, electronics, and system integration disciplines.
• Communicate technical findings and recommendations clearly to both technical and non-technical audiences.

Skills

Analytical thinking

Problem solving

Cross-functional collaboration

Technical communication

Attention to detail

Self-motivated learner

Education

Bachelor's degree

Master's degree

Doctoral degree

Tools

MATLAB

Python

LabVIEW

Job description

Introduction to the job

As an Optical Sensor Engineer, you will help develop the technology behind some of the world’s most advanced semiconductor manufacturing systems. Your work will support the optical sensing solutions that enable precise wafer positioning and measurement, helping chipmakers produce faster, smaller, and more energy-efficient microchips. At ASML in Wilton, Connecticut, you will collaborate with multidisciplinary teams to design, build, test, and improve sophisticated optical sensor systems. As an Optical Sensor Engineer, you will contribute directly to technology that powers innovation across consumer electronics, healthcare, automotive, and communications industries.

Role and Responsibilities

• Design and develop optical sensor systems that integrate light sources, detectors, optical components, electronics, and software.
• Build, align, test, and troubleshoot optical and photonic systems in laboratory environments.
• Analyze experimental and system performance data to identify issues and improve sensor functionality.
• Develop and execute test plans to investigate technical problems and determine root causes.
• Implement and refine data analysis tools using MATLAB and Python.
• Collaborate with engineers across optics, software, electronics, and system integration disciplines.
• Communicate technical findings and recommendations clearly to both technical and non-technical audiences.

Education and Experience

• Bachelor’s degree in physics, optics, electrical engineering, mechanical engineering, chemical engineering, or a related field, plus 2 or more years of relevant experience.
• Master’s degree in physics, optics, electrical engineering, mechanical engineering, chemical engineering, or a related field.
• Doctoral degree in physics, optics, electrical engineering, mechanical engineering, chemical engineering, or a related field.

Preferred experience includes:

• Experience with data analysis, signal processing, or scientific software development.
• Hands-on experience with optical system alignment, imaging systems, detectors, or photonic technologies.
• Experience using MATLAB, Python, LabVIEW, or similar engineering tools.
• Experience conducting laboratory testing and interpreting experimental results.
• Strong written and verbal communication skills in English.

Skills

• Apply strong analytical and problem-solving skills to complex technical challenges.
• Collaborate effectively with cross-functional teams and diverse stakeholders.
• Communicate technical concepts clearly in both written and verbal formats.
• Demonstrate curiosity and a continuous learning mindset.
• Interpret experimental data and translate findings into actionable recommendations.
• Manage multiple priorities in a dynamic engineering environment.
• Take ownership of assignments and follow through on commitments.
• Identify opportunities for process, performance, and design improvements.
• Build positive working relationships based on trust and respect.
• Maintain attention to detail while working with complex systems.

Other Information

This position is located on-site in Wilton, CT and requires regular in-person collaboration, laboratory work, training activities, and participation in team meetings. A flexible workplace arrangement may be available for eligible activities, with up to two remote workdays per week. The role may require domestic and international travel based on business needs. You may work in laboratory and cleanroom environments while wearing required protective equipment, including coveralls, gloves, safety glasses, hood coverings, and booties.

Compensation and Benefits

The current base annual salary range for this role is currently: $93,750 - $137,000

The current base annual salary range for this role is currently: $0-0

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 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.

• Medical, dental, vision, and basic life insurance.
• 401k plan.
• Eight (8) hours of vacation leave every month.
• Thirteen (13) paid holidays throughout the calendar year.

All new ASML jobs have a minimum application deadline of 10 days.

Security Clearance and Export Controls

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 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.

Request an Accommodation

ASML 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 [e-mail] 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.