Principal Mechanical Engineer - San Diego, CA, United States
$160,400 - $220,550 USD yearly
Originally posted 15 September 2026 by the employer.
This role provides technical leadership for Cymer’s Light Conditioning Function team.
About the role
This role leads optomechanical architecture and design across new product development and sustaining engineering initiatives. You will provide technical leadership for Cymer’s Light Conditioning Function team.
What you'll do
- Lead the specification, architecture, design, integration, and validation of complex optomechanical modules and subsystems.
- Develop technology roadmaps and guide research, feasibility studies, and long-term engineering decisions.
- Design mechanical and optomechanical parts, assemblies, fixtures, and alignment solutions.
- Perform tolerance analysis, finite element analysis, and system-level troubleshooting for performance, reliability, and manufacturing.
- Lead root cause investigations and corrective actions for production, field, and customer issues.
- Support engineering change requests, component obsolescence management, and configuration control.
What you'll need
- Bachelor’s degree in mechanical engineering or a related engineering discipline.
- 10–15 years of relevant engineering experience, including advanced mechanical design, system integration, technical leadership, and product lifecycle responsibilities.
- Experience designing machined, sheet metal, molded, additive-manufactured, and flexure-based components and assemblies.
- Proficiency with three-dimensional computer-aided design software and detailed engineering drawings.
- Experience with geometric dimensioning and tolerancing (GD&T), tolerance analysis, documentation control systems, and engineering change processes.
- Experience with finite element analysis involving structural, thermal, vibration, or fluid dynamics applications.
Nice to have
- Master’s degree or doctoral degree in mechanical engineering or a related field.
- Experience with PTC Creo.
- Familiarity with industrial laser systems, optomechanical systems, or semiconductor manufacturing equipment.
This role has been open 29 days — well below the 50-day median for Hardware Systems Engineering roles.
Hardware Systems Engineering · AI ML Hardware
|
Open roles in category
964
|
Median days open
50 d
|
Median salary
$155k
|
See the full market breakdown ▾Category comparison, and who else is hiring
| Metric | ASML | All employers we track in this specialty (964 roles · 103 employers) |
|---|---|---|
| Open roles in this specialty | 32 | 964 |
| Open roles in the wider Software, Firmware & Systems family | 61 | 6149 · 145 employers |
| Median days open | 28 d | 50 d (−22 d vs this employer) |
| Median salary (USD postings) | — | $155k |
Who's hiring in this category
- Intel Corporation · 71 open roles · median 33 d
- KLA Corporation · 65 open roles · median 42 d
- Teradyne · 55 open roles · median 27 d
- NVIDIA · 52 open roles · median 67 d
- Applied Materials · 49 open roles · median 63 d
- AMD · 45 open roles · median 44 d
How we counted: 964 open Hardware Systems Engineering (AI ML Hardware) roles from 103 employers tracked in the SemiconductorJobs index, counted 15 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 Software, Firmware & Systems family row. Figures refresh nightly.
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