Senior R&D Test Engineer – SiC​/Si –(f​/m​/d

The opportunity

Join our Product Evaluation & Qualification team at Hitachi Energy Semiconductors in Lenzburg, where we ensure the highest quality and reliability standards for next-generation semiconductor chips and power modules. Our products play a critical role in enabling renewable energy, eMobility, traction, and industrial applications worldwide. As we continue to expand our testing capabilities, we are looking for a motivated and hands‑on Senior R&D Test Engineer to support the development and qualification of innovative Silicon Carbide (SiC) and Silicon (Si) technologies.

In this role, you will work at the interface of R&D, product engineering, and testing, helping bring advanced semiconductor technologies from development to industrialization.

• Contribute to the development and qualification of next-generation Silicon Carbide (SiC) and Silicon (Si) semiconductor devices for power module applications
• Collaborate closely with multidisciplinary teams across R&D Design, Process Development, and Product Engineering to evaluate the performance and reliability of new technologies
• Plan, execute, and monitor electrical and reliability tests using advanced test equipment and methodologies
• Analyze test data, identify trends and root causes, and provide technical recommendations to support product development decisions.
• Prepare and present test reports, communicating key findings and risks to project stakeholders
• Drive continuous improvement initiatives within the testing laboratory, enhancing efficiency, quality, and testing capabilities
• Ensure compliance with safety, environmental, cleanliness, and laboratory operating standards in all testing activities

• Master's degree or PhD in Electrical Engineering, Power Electronics, Semiconductor Engineering, or a related field
• Several years of experience in the semiconductor, power electronics, or related industry, ideally within electrical testing, validation, or reliability engineering
• Strong understanding of semiconductor devices, particularly Silicon Carbide (SiC) and/or Silicon (Si) technologies
• Experience with test systems, measurement equipment, and data analysis methodologies
• Programming or automation skills are highly desirable, preferably in Python, LabVIEW, or similar tools
• Experience with statistical data analysis and engineering software tools; CAD knowledge is considered a plus
• Strong analytical and problem‑solving skills, combined with a structured and collaborative working style
• Fluent in English;
  German is an advantage

• The opportunity to work on cutting‑edge semiconductor technologies that enable the global energy transition
• Collaboration with highly skilled experts in an international and innovative environment
• Challenging projects with real impact on future power electronics solutions
• Flexible working arrangements and attractive development opportunities within a global technology leader