Senior Software Engineer, User Experience

Senior Software Engineer, User Experience – Axcelis Technologies

Axcelis Technologies is seeking a Senior Software Engineer, User Experience to join our software engineering organization and play a key role in defining the user experience for our ion implanter control platforms. This role focuses on the design and implementation of intuitive, robust, and standards‑compliant user interfaces that support complex operator, engineering, and service workflows across Axcelis tools.

As semiconductor manufacturing systems increase in complexity and precision, control software has become a defining platform capability rather than an implementation detail. This team proactively evolves control software architecture ahead of demand, addressing scalability, reliability, and testability challenges that traditional approaches struggle to meet. The role ensures that advanced control, automation, and diagnostic capabilities are presented to users through clear, consistent, and human‑centered interfaces.

In this position you will work closely with equipment control, systems, process, and hardware engineers to translate complex machine behavior into effective user experiences that can be safely and efficiently operated in high‑volume manufacturing environments.

• UX Architecture & Design
  • Own the user interface design and implementation for ion implanter control software, delivering intuitive, efficient, and SEMI E95‑compliant UIs.
  • Define and evolve UX patterns and interaction models that scale across subsystems, workflows, and tool generations.
  • Create wireframes, mockups, and interactive prototypes to visualize operator and engineering workflows.
  • Contribute to and maintain design systems, UI standards, and styling guidelines to ensure consistency across platforms.
• Implementation Across UI Technologies
  • Design and implement modern web‑based interfaces for recipe management, subsystem monitoring, diagnostics, and system visualization.
  • Develop and maintain desktop UI frameworks (WPF, Avalonia, .NET Core) where web‑based solutions are not optimal.
  • Ensure consistent look, feel, and behavior across web‑based and desktop UI technologies.
• Hardware‑Integrated Validation
  • Prototype, test, and validate UI components on simulators and real equipment, ensuring robustness in fab environments.
  • Collaborate with controls, systems, and process engineers to verify UI behavior under real operational conditions.
  • Champion human factors, minimizing operator error, streamlining workflows, and supporting safe operation.
• Cross‑Functional Collaboration
  • Partner closely with Equipment Control, Systems Engineering, Hardware Engineering, and Process Engineering to translate complex functionality into clear user experiences.
  • Participate in requirements discussions, architecture reviews, and design tradeoffs to ensure usability is considered early.
  • Influence system architecture to improve observability, diagnosability, and operator interaction models.

• Bachelor’s or Master’s degree in Software Engineering, Computer Science, Human‑Computer Interaction, or a related field.
• 7+ years of experience designing and implementing UIs for complex, safety‑critical, or high‑reliability systems.
• Strong expertise with modern web UI frameworks (Angular, React, Blazor, or equivalent).
• Proficiency with .NET Core and cross‑platform desktop UI frameworks such as WPF and Avalonia.
• Demonstrated ability to gather requirements from cross‑functional stakeholders and deliver production‑quality UIs.
• Solid understanding of UX best practices, responsive design, and design systems.
• Strong communication and collaboration skills.

• Experience designing interfaces for semiconductor capital equipment or similar domains (industrial automation, medical devices, aerospace).
• Familiarity with SEMI E95 or similar ergonomics and usability standards.
• Experience with semiconductor tool workflows such as recipe management, diagnostics, automation, and system monitoring.
• Hands‑on experience validating UIs on real hardware, not just simulations.
• Experience working in Agile, cross‑functional development environments.

It is the…