Principal Systems Engineer

Onto Innovation

Principal Systems Engineer leading architecture, integration, and validation of semiconductor metrology systems at Onto Innovation. Collaborating cross-functionally to drive technical execution from concept to production.

Posted 6/24/2026full-timeMilpitas • California, Oregon • 🇺🇸 United StatesLead💰 $160,000 - $240,000 per yearWebsite

About the role

Key responsibilities & impact

Lead the architecture, integration, and validation of complex systems for advanced semiconductor Films and OCD metrology equipment
Define and own system architecture for complex, high-precision equipment
Develop, manage, and maintain system requirements, including traceability and validation
Lead system integration efforts, identifying and resolving cross-domain issues
Establish system error budgets, performance models, and sensitivity analyses
Collaborate with optical, mechanical, electrical, and software engineering teams
Support project planning, risk assessment, and milestone delivery

Requirements

What you’ll need

Master’s degree in Engineering (Mechanical, Electrical, Optical, Physics, or related field)
10+ years of experience in complex system design and integration
Proven experience in systems engineering within semiconductor equipment, photonics, aerospace, or precision instrumentation industries
Strong understanding of multidisciplinary systems (mechanics, optics, electronics, controls, and software)
Demonstrated ability to lead technical teams and influence cross-functional stakeholders.

Benefits

Comp & perks

Health, dental, and vision coverage
Life and disability insurance
Paid time off (PTO)
401(k) with employer match
Employee Stock Purchase Program (ESPP)
Wellness initiatives

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

system architecturesystem integrationsystem requirementsvalidationperformance modelssensitivity analysestraceabilitycomplex system designmultidisciplinary systemshigh-precision equipment

Soft Skills

leadershipcollaborationrisk assessmentproject planninginfluencestakeholder management

Certifications

Master’s degree in Engineering