Senior Mechanical Engineer - Wilton, CT, United States
$102,375 - $150,000 USD yearly
Originally posted 10 September 2026 by the employer.
Design, develop, integrate, and test sub-system modules for lithography machines.
About the role
This role involves specifying, designing, developing, realizing, integrating, and testing modules and tools for lithography machines. You will focus on designing and producing sub-system modules that are integrated into full lithography machines.
What you'll do
- Identify, analyze, document, and manage requirements with traceability, coordinating verification criteria.
- Conduct research and feasibility studies, translating findings into recommendations and decision inputs.
- Develop engineering concepts and solutions, make technical choices, and resolve issues to meet functionality, performance, cost, safety, and compliance needs.
- Define and communicate specifications and high-level designs, aligning interfaces, and supporting reviews.
- Support system or product integration by coordinating dependencies and applying configuration management.
- Define and execute validation and test approaches, improving methods and procedures, and ensuring qualification evidence supports release readiness.
- Estimate effort, plan and track work, manage risks and dependencies, and deliver work packages or projects.
- Maintain accurate technical documentation and follow EHS policies while identifying and mitigating safety risks.
What you'll need
- Minimum BS degree in Mechanical Engineering and 5+ years of relevant experience.
- Ability to develop engineering concepts and solutions, make technical tradeoffs, and realize designs that meet functionality, performance, cost, safety, compliance, and schedule constraints.
- Ability to plan and execute verification and validation, ensuring qualification evidence supports release readiness.
- Capability to interface with multidisciplinary groups.
Nice to have
- MSc or PhD preferred.
Skills: lithography machines, complex mechanics, sub-system modules, CAD designs, prototypes
This role has been open 36 days — well below the 79-day median for Semiconductor Equipment Engineering roles.
Semiconductor Equipment Engineering · Lithography Systems
|
Open roles in category
53
|
Median days open
79 d
|
Median salary
$132k
|
See the full market breakdown ▾Category comparison, skills in demand, and who else is hiring
| Metric | ASML | All employers we track in this specialty (53 roles · 13 employers) |
|---|---|---|
| Open roles in this specialty | 28 | 53 |
| Open roles in the wider Process, Fab & Equipment family | 318 | 9874 · 109 employers |
| Median days open | 48 d | 79 d (−31 d vs this employer) |
| Median salary (USD postings) | — | $132k |
Skills observed across this category: lithography machines, complex mechanics, sub-system modules, CAD designs, prototypes
Who's hiring in this category
- ASML (this employer) · 28 open roles · median 48 d
- Applied Materials · 4 open roles · median 106 d
- GlobalFoundries · 4 open roles · median 116 d
- Micron Technology · 4 open roles · median 159 d
- Onto Innovation · 3 open roles · median 86 d
- NXP Semiconductors · 2 open roles · median 114 d
How we counted: 53 open Semiconductor Equipment Engineering (Lithography Systems) roles from 13 employers tracked in the SemiconductorJobs index, counted 17 Oct 2026. Specialty figures count only roles carrying this exact specialty label, so an employer's related work in neighbouring specialties is not included there — it is counted in the wider Process, Fab & Equipment family row. Figures refresh nightly.
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