CS - EUV Technical Support Engineer (Source) - Tainan
Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Sep 8, 2026. ASML scores B on the Alion truth index.
Job Description
Introduction to the job
The EUV Source Technical Support Engineer is responsible for supporting and maintaining EUV source competency, stability, and availability for EUV lithography systems in semiconductor manufacturing environments. The role provides advanced technical expertise to diagnose, analyze, and resolve EUV source related issues to ensure system performance meets operational and manufacturing requirements.
This position works closely with customers, field service teams, and internal engineering organizations to investigate performance deviations, perform root cause analysis, and implement corrective and preventive actions. The role contributes to system uptime, productivity, and long-term reliability through proactive monitoring, data analysis, and continuous improvement activities.
The EUV Source Technical Support Engineer operates in a technically complex, customer-facing environment and plays a key role in maintaining stable EUV operations and supporting high-volume manufacturing objectives.
Role and responsibilities
The EUV Source Technical Support Engineer ensures optimal EUV performance, availability, and reliability in high-volume semiconductor manufacturing environments. The role applies deep technical expertise to troubleshoot complex issues, optimize system performance, and act as a trusted technical partner to customers and internal stakeholders.
Monitor, analyze, and optimize EUV source power, stability, and availability to meet customer manufacturing requirements.
Diagnose performance degradations related to EUV source subsystems (laser, droplets, collector, vacuum, and diagnostics).
Perform advanced root cause analysis for EUV Source issues using system logs, sensor data, and trend analysis.
Lead technical investigations on recurring or high-impact performance issues and define corrective actions.
Provide on-site and remote technical support to resolve complex performance problems efficiently.
Act as a trusted technical advisor to customers on EUV source performance, limitations, and best operating practices.
Communicate technical findings, status updates, and improvement plans clearly to customer engineering and management teams.
Develop and implement preventive maintenance recommendations.
Document technical cases, lessons learned, and best practices to enhance organizational knowledge.
Contribute to technical guidelines, troubleshooting procedures, and training materials for field teams.
Support cross-site knowledge sharing to improve global EUV support capability.
Education and experience
Bachelor's degree or equivalent experience.
1-2+ years, technical knowledge of EUV Source preferred.
Familiarity with EUV Source competency performance preferred.
Skills
EUV Source & related Systems Knowledge Understanding of EUV source architecture, power generation, stability drivers, and degradation mechanisms.
Advanced Troubleshooting Ability to diagnose complex EUV source and performance issues using structured problem-solving methods.
Root Cause Analysis (RCA) Experience leading technical investigations and defining corrective and preventive actions.
Semiconductor Manufacturing Environment Familiarity with fab operations, high-volume manufacturing constraints, and uptime requirements.
Data Analysis & Interpretation Ability to analyze system logs, sensor data, performance trends, and reliability metrics.
System Performance Optimization Skills in identifying performance gaps and implementing optimization or preventive improvements.
Technical Documentation Ability to document findings, procedures, and best practices clearly and accurately.
Other information
Working model as day shift and late shift
This position requires access to controlled technology, as defined in the United States Export Administration Regulations (15 C.F.R. § 730, et seq.). Qualified candidates must be legally authorized to access such controlled technology prior to beginning work. Business demands may require ASML to proceed with candidates who are immediately eligible to access controlled technology.
Inclusion and diversity
ASML is an Equal Opportunity Employer that values and respects the importance of a diverse and inclusive workforce. It is the policy of the company to recruit, hire, train and promote persons in all job titles without regard to race, color, religion, sex, age, national origin, veteran status, disability, sexual orientation, or gender identity. We recognize that inclusion and diversity is a driving force in the success of our company.
Need to know more about applying for a job at ASML? Read our frequently asked questions.