Principal Applications Engineer

An experienced Staff Application Engineer specializing in High Voltage (650V/700V) GaN power devices and power conversion applications.

Responsible for supporting customer designs, developing reference solutions, validating products, and driving application adoption of Renesas High Voltage GaN solutions across industrial, infrastructure, server power, UPS, solar, and EV power applications in Taiwan.

Application Development & Customer Support

• Support customer design-in activities for High Voltage GaN products.
• Provide application-level support for:
  • AC-DC power supplies
  • Totem-Pole PFC
  • LLC converters
  • DC-DC converters
  • UPS systems
  • Solar inverters
  • Server and industrial power systems
• Review customer schematics, layouts, and power architectures.

Reference Design Development

• Develop and validate High Voltage GaN evaluation boards and reference designs.
• Perform efficiency, thermal, EMI, and performance optimization.
• Generate application data to support customer adoption.

Product Validation

• Work with Product Engineering teams to execute validation plans.
• Characterize switching performance, thermal behavior, gate driving, and system performance.
• Support root-cause analysis of customer and field issues.

Technical Customer Engagement

• Support key customers in Taiwan throughout design, prototype, validation, and production phases.
• Troubleshoot application issues and provide recommendations for design optimization.
• Deliver customer demonstrations, training, and technical presentations.

Technical Documentation

• Develop:
  • Application Notes
  • Design Guides
  • Technical Presentations
  • Evaluation Reports
  • Reference Design Documentation
  • Contribute technical content supporting sales and marketing activities.

Cross-Functional Collaboration

• Collaborate with Product Marketing, Sales, FAEs, Product Engineering, and R&D teams.
• Provide customer feedback to support future product roadmap planning.

· Bachelor's degree in Electrical Engineering or related field required.

· Master and Ph.D degree preferred.

· 8-12 years of experience in power electronics and power conversion applications.

· Experience in one or more of:

• High Voltage GaN
• SiC Power Systems
• Server Power Supplies
• UPS
• Solar Inverters
• EV Charging
• Industrial Power Supplies

· Hands-on experience with:

• AC-DC power conversion
• PFC
• LLC
• DC-DC converters
• High-frequency switching systems

· Strong customer-facing and communication skills.

· Fluent English communication skills required.

Renesas is an embedded semiconductor solution provider driven by its Purpose, To Make Our Lives Easier. With a global team of over 21,000 engineers and problem solvers in more than 30 countries, we offer the opportunity to work on world‑leading technology for Automotive, Industrial, Infrastructure, and IoT, shaping a safer, healthier, greener, and smarter future.

At Renesas, TAGIE is our culture, grounded in being Transparent, Agile, Global, Innovative, and Entrepreneurial. It shapes how we work, grow and deliver on our purpose together. This collaborative spirit and mindset drive our semiconductor technology to transform industries and impact millions of lives.

We believe in rewarding our employees with a competitive benefits package alongside their salary. More information will be provided during the hiring process.

Are you ready to join our team and shape the future with us?

Renesas Electronics is an equal opportunity and affirmative action employer, committed to supporting diversity and fostering a work environment free of discrimination on the basis of sex, race, religion, national origin, gender, gender identity, gender expression, age, sexual orientation, military status, veteran status, or any other basis protected by law. For more information, please read our Diversity & Inclusion Statement.