# Staff Software Engineer at Onto Innovation

- Company: Onto Innovation
- What the company does: Onto Innovation is a leader in semiconductor manufacturing software & solutions that solve the most difficult yield, device performance, quality, & reliability issues.
- Company website: https://ontoinnovation.com
- Type: Startups
- Level: Senior
- Location: Wilmington-MA (Upton)
- Work setup: On-site
- Posted: 2026-09-24
- Apply by: 2026-11-08
- Apply: https://wd1.myworkdaysite.com/en-US/ONTO_Careers/job/Wilmington-MA-Upton/Staff-Software-Engineer_R-5975
- Page: https://www.1752.vc/careers/jobs/onto-innovation-staff-software-engineer/

## About the role

The Staff Software Engineer will play a key role in architecting and developing software that enables reliable wafer handling, robotics coordination, safety interlocks, motion control, system orchestration, and factory automation interfaces for a standardized EFEM (Equipment Front End Module) platform. This role involves designing and implementing reusable software components, integrating hardware subsystems, and contributing to a scalable architecture adopted across Onto products.

## What they're looking for

- Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field
- Proven experience (10+ years for Staff level) in software development for highly technical applications, including leading architecture/design of large-scale, mission-critical software systems
- Experience driving technical roadmaps, resolving cross-team dependencies, and making tradeoffs across performance, maintainability, and schedule
- Strong knowledge of hardware-software integration and experience working with complex systems
- Deep expertise in .NET including runtime behavior, performance, threading, and memory management
- Strong C# proficiency using modern features