Senior Software Engineer

Onto Innovation Inc-US

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Milpitas-CA Until 8/21/2026 5+ years exp First posted April 30, 2026 Last posted April 30, 2026
Job description

Onto Innovation is a leader in process control, combining global scale with an expanded portfolio of leading-edge technologies that include: 3D metrology spanning the chip from nanometer-scale transistors to micron-level die-interconnects; macro defect inspection of wafers and packages; metal interconnect composition; factory analytics; and lithography for advanced semiconductor packaging. Our breadth of offerings across the entire semiconductor value chain helps our customers solve their most difficult yield, device performance, quality, and reliability issues. Onto Innovation strives to optimize customers’ critical path of progress by making them smarter, faster and more efficient.

Job Summary & Responsibilities

  • Software development activities using C++/C#, Managed C++, .NET in Windows 64-bit environment

  • Participate in all stages of software development including deployment/trouble shooting at customer sites

  • Take ownership of assigned design and development tasks for current and future generations of products

  • Responsible for software product life cycle for requirement analysis, design, coding, integration and testing

  • Work with hardware and systems/application groups to understand system requirements and map them to a software design

  • Must be able to travel internationally to customer sites at least 20% of the time, with additional travel as business needs require.

Qualifications

  • Bachelor's degree with at least 5 years' experience

  • 5+ years of software development using any one of the high-level programming languages such as C++, C# and .Net Framework

  • Experience developing Semiconductor tool control software

  • Experience developing SECS/GEM Software, factory automation, SEMI Standards

  • Excellent architecture and design experience using modular / OOP / OOD methodology

  • Hands-on experience on C#/C++ programming including multi-threading on Windows platform

  • Consistent record on software design, implementation and unit testing using Microsoft VS C# /C++

  • GUI design and implementation using .Net framework and .Net Core

  • Documentation of software design artifacts and algorithm specifications

  • Collaboration with SQC team on test case development and test execution

  • Ability to communicate effectively and collaborate with others

Why Join Onto Innovation?

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:

$128,000.00 - $192,000.00, 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).

About this role

Summary

Develop and maintain semiconductor control software in C++/C#; collaborate with hardware and systems teams.

Job title

Senior Software Engineer

Experience level

5+ years

Minimum experience

5+ years exp

Industry

software

Location requirements

Milpitas, remote work not specified

Salary

$128k–$192k

Management role

No

Skills & keywords

Required skills

C++C#.NET Frameworkmultithreadingsoftware designunit testing

Preferred skills

None specified

Specializations

C++C#.NETmultithreadingsemiconductor software
Locations

Structured locations inferred from the posting.

Milpitas, CA 95035, USA

Work arrangement unknown City