Posted 12 d ago
Senior Engineer I, Software Engineering(Cluster Tool Controller)
Posted by ASM on 2 November 2026, 12 days ago. Still on their Greenhouse board when we checked 36 min ago. Half of ASM's roles come down within 77 days.
What the posting is about
Design, develop, and maintain Cluster Tool Controller (CTC) software. Implement new features in C# and/or C++. Collaborate with cross-functional teams. Travel internationally as required.
Your experience, ready for this role
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Read out of the posting
Levelsenior
Experience asked5+ years
EmploymentFull time
LocationSouth Korea > Hwaseong
Work arrangementNot stated
Visa sponsorshipNot stated
SalaryNot extracted, check the posting
Posted2026-11-02
Found viagreenhouse, direct from their system
We had it within the hour it went up.
The posting, as the company wrote it
Step into a career with ASM, where cutting edge technology meets collaborative culture.
For over 55 years ASM has been ahead of what’s next, at the forefront of innovation and what’s technologically possible. With more than 4,500 ASMers representing 70 nationalities, our people and our advanced semiconductor devices are playing a crucial role in trends such as 5G, cloud computing, AI, and autonomous driving. But we’re more than just a tech company. We value diversity, inclusion and sustainability as we strive to make a positive impact on the world. Our development programs help support your growth, shaping your future and pushing the boundaries of innovation to unleash potential.
Job's mission
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.
What you will be working on
Design, develop, and maintain CTC software and wafer scheduling logic
Implement new features and enhancements primarily in C# 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 engineering, QA, and customer support
Travel internationally as required to support customer and business needs
What we are looking for
Demonstrated ownership, accountability, and strong problem-solving skills
Strong understanding of object-oriented programming skills with C# and C++(C# preferred)
Proven ability to develop and analyze mathematics-based algorithms
Strong written and verbal communication skills in English
5+ years of professional software development experience, or equivalent practical experience
Knowledge of multithreading and inter-process communication (IPC)
Experience using Git for version control and Jira (or similar tools) for issue tracking
Strong interpersonal communication skills and ability to collaborate effectively with teammates
What sets you apart
Experience developing user interfaces using WPF (and/or WinForm)
Hands-on experience developing scheduler or equipment control logic software.
Experience with .NET and Windows-based systems
Experience with semiconductor manufacturing equipment software, particularly CTC, scheduler, or equipment automation 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
Apply today to be part of what’s next.
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.
Also open at ASM
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