Introduction to the job Are you passionate about building secure, intelligent, and highly reliable software solutions for complex systems? As a Sr. Software Engineer, Product Security & Agentic Diagnostics Platform (ADP), you will play a key role in developing secure diagnostics capabilities and AI-assisted troubleshooting solutions that help accelerate issue analysis and improve system reliability. You will work closely with global engineering teams across software development, platform architecture, product security, infrastructure, and customer support functions to deliver innovative solutions for complex customer environments. This role offers the opportunity to contribute to next-generation software platforms that combine telemetry, diagnostics, product security, and AI technologies within a highly collaborative global environment. This position is based at the ASML Nanying 5G Office (Tainan, Taiwan) and will be offered as a Taiwan Local Hire role, subject to Taiwan Local Hire terms and conditions. Role and responsibilities Design and implement secure, maintainable, reliable, and diagnosable frontend or desktop software integrated with the Agentic Diagnostics Platform and related platform services through well-defined APIs Develop telemetry and diagnostic capabilities to collect, analyze, and correlate logs, metrics, traces, events, and configuration data to support efficient root cause analysis. Investigate complex software, integration, and customer-facing issues, identify root causes, and implement sustainable corrective actions. Design and implement AI-assisted diagnostic workflows that accelerate troubleshooting while maintaining security, transparency, and human oversight. Apply secure-by-design principles, including authentication, authorization, data protection, security logging, certificate management, and vulnerability remediation. Drive product security activities such as threat modeling, security testing, dependency management, and secure software release practices. Collaborate with cross-functional teams including software engineering, platform development, product security, field application engineering, and global support organizations. Contribute to software architecture decisions, API design, system integration, and release readiness activities. Lead technical discussions, review designs, communicate technical risks and trade-offs, and mentor engineers across the organization. Develop and support verification activities, including unit testing, integration testing, system testing, security testing, and automated validation. Required Qualifications Bachelor's or Master's degree in Computer Science, Software Engineering, Artificial Intelligence, Cybersecurity, Factory automation, Control Engineering, or a related technical discipline. 8+ years of software development experience. 2+ years of technical leadership, design leadership, or architecture-related experience. Strong hands-on software development experience using C#. Experience in software architecture, object-oriented design, debugging, troubleshooting, and root cause analysis. Experience developing secure software and applying secure engineering practices. Experience working with software diagnostics, telemetry, logging, monitoring, or observability solutions. Experience collaborating with cross-functional and global engineering teams. Strong written and verbal English communication skills. Preferred Qualifications Experience with .NET, WPF, WinUI, MVVM, C++, or Python. Experience in product security, including threat modeling, IAM, PKI, vulnerability management, SBOM, and secure-by-design practices. Experience designing and implementing telemetry, diagnostics, or observability platforms. Experience with AI-assisted troubleshooting, agent-based applications, or intelligent diagnostic workflows. Experience in semiconductor equipment, industrial automation, cybersecurity, or other complex software-intensive industries. Experience working in customer-facing or customer-site diagnostic environments. Experience with CI/CD, automated testing, containers, and modern software development practices. Experience mentoring engineers and leading technical discussions across multiple teams. Ability to work effectively in a global environment with stakeholders across multiple time zones. Additional Information Standard day-shift schedule (9:00 AM – 6:00 PM). Hybrid working model with up to two remote-working days per week, subject to business needs and company policy. Occasional early-morning or evening meetings may be required to support collaboration with global teams. This position is based at ASML Nanying 5G Office (Tainan, Taiwan) (No. 859, Xilaya Blvd., Xinshi District, Tainan City) and is open to Taiwan local hires. 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. Thank you for your interest in ASML! This is your personal dashboard where you can easily check the status of your application(s), view jobs that match your profile, and change or delete your personal information. You'll also receive notifications through this dashboard about any additional information we may need from you or to let you know when tasks are ready for you to complete as part of our hiring process. ASML is a leading supplier of lithography equipment, used by the world’s top chipmakers to print microchips that are increasingly powerful, fast and energy efficient. Working at ASML is inspiring, no matter what field you're in. That’s because we push the boundaries of technology: if it’s moving the world forward, chances are, we’re behind it. In fact, we’re probably a part of the electronic device you’re using right now. We’re a global team of more than 32,000 people from 122 different nationalities and counting. Headquartered in Europe’s top tech hub, the Brainport Eindhoven region in the Netherlands, our operations are spread across Europe, Asia and the US.

HMI D&E - Sr. Software Engineer, Product Security & ADP - Tainan, Taiwan.

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