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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Developer: ILT (Inverse Lithography) - **Company:** Siemens AG - **Location:** Fremont, CA, United States (Remote available) - **Experience:** Expert - **Salary:** $129,600.0 - $233,300.0 - **Contract:** Permanent contract - **Skills:** C++ (Programming Language), Linux, Distributed Systems, Object-Oriented Software Development, Regression Testing, Software Engineering, Software Systems, Information Technology, Software Performance, Industrial Software - **Published:** May 30, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=29d18d62db32b365 ## About the Role Do you have experience in Software engineering?, * BSEE, MSEE/ MS or Ph.D. Computer Science, Electrical Engineering or related field with at least 8 years software development experience is required * Ability to Implement object oriented software in C++ * Comfortably navigate large software source base and come up with novel solutions * Good knowledge and experience developing highly optimized scalable distributed systems in C++ * Solid understanding software development for Linux * Solid understanding of Computer Science and Computer systems concepts and algorithms Nice to have experience: * Working in the EDA, specifically with lithography and optical proximity correction software * Experience developing features for large software systems ## Description We are looking for an addition to our team of software developers who design, implement, and enhance platform for the Calibre Resolution Enhancement Technology (RET) and Inverse Lithography (ILT) tools running on highly scalable distributed platforms. This position reports to the Calibre Semi ILT R&D manager. Responsibilities Include: * Develop novel solutions to complex problems * Present detailed technical proposals for discussions with peers and management * Implement high quality production ready software in C++ * Perform detailed, quantitative analysis of performance and quality of the software * Improve the performance of massively parallel and highly scalable software platform * Research existing work in the field and applicable fields * Create regression tests and regularly monitor the software performance and quality * Quickly fix bugs in production software, The position will be based out of Bay Area location in USA or Wilsonville OR USA or possibly other. This position will be subject to U.S. export control requirements under the International Traffic in Arms Regulations (ITAR) and/or Export Administration Regulations (EAR). Employment is contingent on either verifying the U.S. Person status or obtaining any necessary export license. Why us? Working at Siemens Software means flexibility - Choosing between working at home and the office at other times is the norm here. We offer great benefits and rewards, as you'd expect from a world leader in industrial software. A collection of over 377,000 minds building the future one day at a time in over 200 countries. We're dedicated to equality, and we welcome applications that reflect the diversity of the communities we work in. All employment decisions at Siemens are based on qualifications, merit, and business need. Bring your curiosity and creativity and help us shape tomorrow! Siemens Software. 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