Software Engineer 1 - Milpitas-CA, United States
$66,400 - $99,600 USD yearly
Originally posted 26 October 2026 by the employer.
Develop semiconductor tool control software and SECS/GEM factory automation interfaces using C++, C#, and .NET on Windows.
About the role
This role involves software development using C++, C#, Managed C++, and .NET in a 64-bit Windows environment. The position spans the software product life cycle for semiconductor tool control and SECS/GEM factory automation.
What you'll do
- Execute software development activities using C++/C#, Managed C++, and .NET in a Windows 64-bit environment. - Participate in all stages of software development, including deployment and troubleshooting at customer sites. - Take ownership of assigned design and development tasks for software product life cycle phases including requirement analysis, design, coding, integration, and testing. - Work with hardware and systems/application groups to understand system requirements and map them to software designs. - Collaborate with the SQC team on test case development and test execution. - Document software design artifacts and algorithm specifications.
What you'll need
- Bachelor's degree with at least 5 years of software development experience using high-level programming languages such as C++, C#, and .NET Framework. - Experience developing semiconductor tool control software. - Experience developing SECS/GEM software, factory automation, and SEMI standards. - Hands-on experience with C#/C++ programming, including multi-threading on Windows platforms. - Architecture and design experience using modular, OOP, and OOD methodologies. - Experience with GUI design and implementation using .NET Framework and .NET Core.
Skills: SECS/GEM, Tool Control Software, C#, C++, .NET, SEMI Standards
This role has been open 0 days — well below the 51-day median for Software Engineering Semiconductor roles.
Software Engineering Semiconductor · Manufacturing Equipment
|
Open roles in category
192
|
Median days open
51 d
|
Median salary
$132k
|
See the full market breakdown ▾Category comparison, skills in demand, and who else is hiring
| Metric | Onto Innovation | All employers we track in this specialty (192 roles · 35 employers) |
|---|---|---|
| Open roles in this specialty | 10 | 192 |
| Open roles in the wider Software, Firmware & Systems family | 27 | 6302 · 146 employers |
| Median days open | 60 d | 51 d (+9 d vs this employer) |
| Median salary (USD postings) | — | $132k |
Skills observed across this category: SECS/GEM, Tool Control Software, C#, C++, .NET, SEMI Standards
Who's hiring in this category
- Applied Materials · 35 open roles · median 31 d
- KLA Corporation · 33 open roles · median 70 d
- ASM International · 16 open roles · median 67 d
- Lam Research · 16 open roles · median 42 d
- Keysight Technologies · 9 open roles · median 83 d
- Onto Innovation (this employer) · 9 open roles · median 67 d
How we counted: 192 open Software Engineering Semiconductor (Manufacturing Equipment) roles from 35 employers tracked in the SemiconductorJobs index, counted 26 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.