Senior Engineer I, Software Engineering(Cluster Tool Controller)

The CTC Software Engineer is responsible for designing, developing, and maintaining Cluster Tool Controller (CTC) software for semiconductor manufacturing equipment. This role focuses on scheduler logic, WPF-based user interfaces, and feature development to improve system stability, usability, and operational efficiency in high-volume manufacturing environments.

• →Design, develop, and maintain CTC software and wafer scheduler logic
• →Implement new features and enhancements using C# (primarily) and/or C++
• →Develop and optimize scheduler algorithms for wafer flow management and process control
• →Design and implement WPF-based(or WinForm-based) UIs for real-time monitoring and control
• →Build intuitive operator interfaces to visualize wafer flow, equipment status, and system events
• →Integrate UI components with scheduler and core control logic
• →Analyze, troubleshoot, and resolve software defects, scheduling conflicts, and runtime issues
• →Validate software functionality using simulators and real semiconductor equipment
• →Collaborate closely with cross-functional teams, including Hardware, Process, QA, and Customer Support
• →Support overseas business travel when required

• Strong sense of ownership with excellent problem-solving skills
• Solid understanding of object-oriented programming (C# preferred)
• Proven ability to develop and analyze mathematics-based algorithms
• Fluent in English (written and verbal communication)
• 3+ years of professional software development experience
• Knowledge of multithreading and inter-process communication (IPC)
• Experience using Git for version control and Jira for issue tracking
• Strong interpersonal communication skills and ability to collaborate effectively with teammates

• Experience developing WPF-based(or WinForm-based) user interfaces
• Hands-on experience with scheduler or control logic development
• Experience with .NET and Windows-based systems
• Background in semiconductor equipment software, especially CTC or scheduler systems
• Master’s degree or higher in Computer Science, Mathematics, or a related field
• Understanding of wafer flow and manufacturing scheduling concepts
• Familiarity with SEMI standards such as GEM300, E40, and E94

We make the tech that enables the chips in devices which improve lives around the world. We do this with an eye to the future, pushing the boundaries of what’s possible through cutting-edge innovation, and driving the next wave of technological breakthroughs that shape how we live, work, and connect.

To learn more about ASM, find us at asm.com and on LinkedIn, Facebook, Instagram, X and YouTube.

ASM is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, religion, age, nationality, social or ethnic origin, sexual orientation, gender, gender identify or expression, marital status, pregnancy, political affiliation, disability, genetic information, veteran status, or any other characteristic protected by law.