Job Title
Senior Software Developer - ILT (Inverse Lithography)
Role Summary
Senior software developer for Siemens EDA Calibre RET and ILT tools, responsible for designing, implementing, and improving production C++ software that runs on highly scalable, distributed platforms. The role is hybrid based in Fremont, CA and reports to the Calibre Semi ILT R&D Manager.
Experience Level
Senior-level. The posting indicates professional software development experience but does not specify years.
Responsibilities
Primary duties include:
- Design and implement production-quality C++ software for massively parallel, scalable systems.
- Develop novel technical solutions for lithography and optical proximity correction problems.
- Analyze software performance and quality metrics; improve platform performance and scalability.
- Research relevant prior work and apply findings to solution design.
- Create and maintain regression tests and monitor software quality in production.
- Prepare and present detailed technical proposals to peers and management.
- Rapidly diagnose and resolve bugs in production software.
Requirements
Key technical requirements and preferences.
-
Must have: Strong proficiency in object-oriented C++ and experience with Linux-based development.
- Experience building and optimizing scalable, distributed, massively parallel systems in C++.
- Ability to navigate large codebases, write production-ready code, and produce regression tests.
- Strong computer science fundamentals: algorithms, data structures, and systems concepts.
- Experience performing quantitative performance analysis and improving software quality.
Nice-to-have:
- Experience in EDA, lithography, optical proximity correction, ILT/RET tools or adjacent domains.
- Experience developing features for large, complex software systems and applying performance optimization techniques for distributed computing.
Education Requirements
Required: Bachelor's degree in Electrical Engineering, Computer Science, or a related field; Master's or PhD preferred; or equivalent practical experience.
About the Company
Company: Siemens
Headquarters: Munich, Germany
Siemens EDA is a leading global provider of Electronic Design Automation (EDA) products and systems. Their innovative solutions enable companies to enhance the development of electronic products efficiently and effectively, keeping pace with the complex demands of technology and physics. Siemens is committed to delivering advanced workflow solutions that integrate both EDA and MCAD tools for multi-domain design and manufacturing in the semiconductor industry.

Date Posted: 2026-06-28