Principle Software Engineer – Systems software - San Jose, CA, United States
$202,000 - $277,750 USD yearly
Originally posted 24 September 2026 by the employer.
About the role
This role involves owning and driving the technical details of projects that deliver systems software for ASML's products, focusing on the full software stack including hardware, firmware, OS, desktop, and web applications.
What you'll do
- Develop systems software roadmap based on overall product needs.
- Define roadmap for software evolutionary and new technology insertion.
- Develop innovative software solutions to contribute towards product and technology roadmap.
- Decompose complex problems and derive software requirements to propose feasible solutions.
- Enable successful technical integration of hardware and software system solutions.
- Coach a team of junior architects and be responsible for their deliverables.
What you'll need
- Proficient in .NET technologies, C#, or C++.
- Hands-on experience with WCF and WPF.
- Hands-on experience in .Net, state machine, distributed, parallel programming.
- 10+ years of experience in developing software with C#, .NET, and C++.
- 10+ years of experience architecting and designing (architecture, design patterns, reliability and scaling) of new and legacy systems.
Nice to have
- Experience architecting large systems or system of systems in distributed environment.
- Experience architecting common software components across products and programs.
- Experience with software for complex mechatronic systems.
- Experience with Python, Redis, SQL, machine learning.
- Experience writing systems software for semiconductor equipment, IoT devices, medical systems, robotics, motion systems, mechatronics systems, electron optical systems, calibrations, image processing, process automation, wireless, cameras, or sensors.
Skills: systems software, .NET technologies, C#, C++, mechatronic systems
This role has been open 16 days — well below the 45-day median for Software Engineering Semiconductor roles.
Software Engineering Semiconductor · Systems Software
|
Open roles in category
362
|
Median days open
45 d
|
Median salary
$148k
|
See the full market breakdown ▾Category comparison, skills in demand, and who else is hiring
| Metric | ASML | All employers we track in this specialty (362 roles · 57 employers) |
|---|---|---|
| Open roles in this specialty | 4 | 362 |
| Open roles in the wider Software, Firmware & Systems family | 63 | 6035 · 146 employers |
| Median days open | 45 d | 45 d (same as this employer) |
| Median salary (USD postings) | — | $148k |
Skills observed across this category: systems software, .NET technologies, C#, C++, mechatronic systems
Who's hiring in this category
- Keysight Technologies · 37 open roles · median 30 d
- KLA Corporation · 31 open roles · median 158 d
- Cadence Design Systems · 28 open roles · median 199 d
- Applied Materials · 27 open roles · median 44 d
- Micron Technology · 26 open roles · median 40 d
- NVIDIA · 25 open roles · median 40 d
How we counted: 362 open Software Engineering Semiconductor (Systems Software) roles from 57 employers tracked in the SemiconductorJobs index, counted 10 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.