Power Electronics Engineer

Location: Zurich, Switzerland; on-site

Company

hirify.global is a European fusion company developing the hardware and infrastructure for commercial stellarator fusion power plants, based on next-generation machines and high-temperature superconducting magnet technology.

What you will do

• Evaluate and develop power-conversion topologies for converters, balancing efficiency, electrical stress, thermal behaviour, reliability, power density, and system requirements.
• Design magnetic components including inductors, transformers, and chokes, covering material selection, core geometries, winding concepts, losses, and thermal limits.
• Build analytical and simulation models for converter behaviour, semiconductor stresses, switching and conduction losses, efficiency, and operating-range performance.
• Build prototypes and conduct laboratory testing, characterization, verification, troubleshooting, and validation of power-electronic circuits and converter stages.
• Analyse test results and correlate measurements with simulations and calculations to improve designs and validate converter performance.
• Collaborate with integrated electronics, embedded software, mechanical, thermal, and systems engineering.

Requirements

• University degree in Electrical Engineering, Power Electronics, or a related field.
• Experience taking power-stage designs from concept and simulation through component selection, prototype implementation, laboratory measurement, debugging, and validation.
• Expertise in power-conversion topologies, power semiconductors, magnetic components, and passive components.
• Ability to work on high-power-density, high-voltage, high-current systems with fast dynamic response and demanding efficiency and reliability requirements.

Nice to have

• Experience with electro-thermal simulation tools such as PLECS.
• Experience with SiC or GaN semiconductors and high-frequency magnetics.

Culture & Benefits

• Work in a multidisciplinary fusion engineering team combining advanced simulation with hands-on hardware development.
• Contribute to the development of commercial stellarator fusion and clean-energy technology.
• Collaborate with colleagues across teams in Munich, Zurich, and Oxford.
• Work in a diverse environment focused on different perspectives, strong execution, and purposeful engineering.

Hiring process

• Recruiter interview lasting 30–60 minutes.
• 30-minute technical screening.
• Technical panel consisting of three 60-minute interviews.