Power Electronics Engineer - Fusion Systems

Proxima Fusion GmbH; Altburg; On-site; CHF 90,000 - 135,000; Full time

Job summary

Proxima Fusion GmbH in Zürich, Altburg is seeking a Power Electronics Engineer to design and optimize power conversion stages for the world’s first stellarator fusion plant. You will translate requirements into robust hardware, select topologies, and drive prototype development with a multidisciplinary team.

The role emphasizes SiC/GaN devices, magnetic components, and electro‑thermal considerations, contributing to high-density, reliable power systems critical for fusion power delivery.

Qualifications

• Bachelor's or Master’s degree in electrical engineering or related field.
• Proven experience in taking power-stage designs from concept to prototype.
• Familiarity with SiC/GaN devices and high-frequency magnetics is a plus.

Responsibilities

• Evaluate and select power conversion topologies for high-performance systems.
• Design magnetic components, including inductors, transformers, and chokes, with attention to losses and thermal limits.
• Develop analytical and simulation models to predict converter behavior and reliability.
• Build and test prototypes, validate performance, and troubleshoot hardware.
• Collaborate with cross-functional teams across electronics, mechanics, and controls.

Skills

Power electronics

Power conversion

Semiconductors (SiC/GaN)

Thermal analysis

Education

University degree in Electrical Engineering / Power Electronics

Tools

PLECS

Job description

Proxima Fusion GmbH in Zürich, Altburg is seeking a Power Electronics Engineer to design and optimize power conversion stages for the world’s first stellarator fusion plant. You will translate requirements into robust hardware, select topologies, and drive prototype development with a multidisciplinary team.

The role emphasizes SiC/GaN devices, magnetic components, and electro‑thermal considerations, contributing to high-density, reliable power systems critical for fusion power delivery.