Software Engineer 3 - Hillsboro-OR, United States
$86,400 - $129,600 USD yearly
Originally posted 4 September 2026 by the employer.
This role focuses on designing, developing, and optimizing low-level software components for advanced semiconductor equipment.
About the role
What you'll do
- Translate customer needs into technical requirements.
- Develop and maintain .NET applications using C# and WPF.
- Implement client-server communication using WCF, TCP/IP, and other protocols.
- Develop and integrate low-level hardware control interfaces.
- Participate in code reviews, unit testing, and system integration.
- Contribute to the continuous improvement of software architecture and development processes.
What you'll need
- Bachelor’s or Master’s degree in Computer Science, Mathematics, Physics, or a related engineering discipline.
- 2+ years of professional software development experience with .NET, C#.
- Strong understanding of object-oriented programming and design patterns.
- Experience with WPF for GUI design and implementation.
- Proficiency in client/server communication technologies such as WCF and TCP/IP.
- Experience interfacing with hardware through various communication protocols.
- Knowledge of Agile/SCRUM methodologies and tools like Git.
Nice to have
- Familiarity with metrology tools and SEMI-industry standards.
Skills: low-level software components, .NET applications, C# and WPF, hardware control interfaces, client-server communication
This role has been open 43 days — below the 51-day median for Software Engineering Semiconductor roles.
Software Engineering Semiconductor · Manufacturing Equipment
|
Open roles in category
181
|
Median days open
51 d
|
Median salary
$143k
|
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 (181 roles · 34 employers) |
|---|---|---|
| Open roles in this specialty | 9 | 181 |
| Open roles in the wider Software, Firmware & Systems family | 27 | 6118 · 145 employers |
| Median days open | 59 d | 51 d (+8 d vs this employer) |
| Median salary (USD postings) | — | $143k |
Skills observed across this category: low-level software components, .NET applications, C# and WPF, hardware control interfaces, client-server communication
Who's hiring in this category
- KLA Corporation · 36 open roles · median 62 d
- Applied Materials · 31 open roles · median 25 d
- ASM International · 14 open roles · median 67 d
- Lam Research · 14 open roles · median 45 d
- Keysight Technologies · 10 open roles · median 75 d
- Onto Innovation (this employer) · 9 open roles · median 59 d
How we counted: 181 open Software Engineering Semiconductor (Manufacturing Equipment) roles from 34 employers tracked in the SemiconductorJobs index, counted 18 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.