Senior Systems Engineer

The Senior Systems Engineer for the Iris T1 platform will play a critical role in advancing Onto’s next-generation optical metrology solutions. This position focuses on developing new metrology capabilities, optimizing performance of existing Iris T1 systems, and delivering clear, data-driven guidance to global field and customer teams.

The ideal candidate will collaborate closely with cross-functional partners-including software engineering, hardware design, systems engineering, and applications scientists-to define system specifications, establish performance requirements, and ensure successful system integration. The role requires designing and executing experiments to validate system behavior, diagnose performance issues, and drive continuous improvement in optical hardware and measurement algorithms.

Additional responsibilities include supporting first-in-fab Iris T1 system installations, enabling initial tool matching and baseline performance validation, and developing training resources and documentation for regional engineering teams. This role will require international travel of up to 20%.

• Align, optimize, and validate precision optical subsystems within the Iris T1 platform
• Develop best practices and operational methodologies to maximize tool performance and measurement stability
• Design, execute, and analyze experiments to characterize, troubleshoot, and enhance optical metrology performance
• Create structured action plans and drive timely execution
• Develop and deliver technical presentations for internal stakeholders and external customers
• Communicate system requirements, design specifications, and performance findings to multidisciplinary engineering teams
• Support on-site activities including new tool installations, initial qualification, and matching of first-in-fab systems
• Generate technical procedures, documentation, and training materials for global engineering teams

• Master’s in engineering or physical sciences with emphasis in optical physics or related optical technologies - PhD preferred.
• 5+ years of semiconductor capital equipment engineering experience, preferably in optical metrology
• Hands-on applications development experience with spectroscopic ellipsometry or related optical measurement techniques
• Demonstrated experience integrating precision optical and optomechanical components
• Proficiency in data analysis and scientific programming (e.g., Python, MATLAB)
• Strong analytical skills and a methodical, data-driven approach to troubleshooting complex systems
• Excellent communication and interpersonal skills; collaborative team-oriented mindset
• Hands-on experience working with prototype systems in an R&D or laboratory environment
• Background in new product development, system bring-up, or early-stage metrology platforms
• Ability to travel internationally up to 20%

At Onto Innovation, we believe your work should matter-and so should your well-being. That’s why we offer competitive salaries and a comprehensive benefits package designed to support you and your family. From health, dental, and vision coverage to life and disability insurance, PTO, and a 401(k) with employer match, we’ve got you covered. You’ll also enjoy access to our Employee Stock Purchase Program (ESPP), wellness initiatives, and cutting-edge tools-all within a collaborative, inclusive culture where your contributions are valued and recognized.

Compensation & Growth

Base Salary Range: $102,400.00 - $153,600.00, offered in good faith and based on experience, location, and qualifications.

• Additional Rewards: Annual bonus opportunities and potential long-term incentives tied to both company and individual success.

Empowering Every Voice to Shape the Future:

Onto Innovation is committed to creating a workplace where every qualified candidate has an equal opportunity to succeed. We evaluate applicants based on skills, experience, and potential - without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, veteran status, or any other characteristic protected by law. We believe diversity of thought and background drives innovation and strengthens our team.

Important Note on Export Compliance

For certain positions requiring access to technical data, U.S. export licensing review may be necessary for applicants who are not U.S. Citizens, Permanent Residents, or other protected persons under 8 U.S.C. 1324b(a)(3).