Senior Multiphysics R&D Engineer (Electro-mechanical)

With over 140 years of Swiss engineering heritage, Sécheron Hasler Group is a global leader in high-power electrical and electronic equipment. Our solutions power railways, renewable energy, DC and AC networks, and industrial systems worldwide trusted for their precision, reliability, and innovation.

At the heart of modern rail infrastructure, our Traction Power Systems unit delivers cutting-edge DC and AC traction substations, protection systems, power conversion and digital monitoring solutions. Join us to shape the future of sustainable mobility with technology that keeps cities and countries moving. For the expansion of our team, we are seeking to hire in Geneva a dynamic and motivated Senior R&D Engineer.

As a Senior Multiphysics R&D Engineer, you will be involved with the R&D team in the development of cutting-edge high-speed switching devices such as high-speed DC circuit breakers, contributing to the full product lifecycle: from design to application.

You will work at the intersection of electrical and mechanical engineering, bringing expertise in power electronics, dielectrics and thermal advanced modeling, playing a key role in shaping the future of medium voltage switching technology.

Main Responsibilities:

• Contribute to innovative R&D projects focused on high-speed circuit breakers and related switching technologies.

• Design and simulate electrical switching systems using MATLAB/Simulink, COMSOL MultiPhysics including electromagnetic, thermal, material science and dielectric behavior.

• Define and execute test plans for prototypes, including dielectric, thermal, and mechanical validation.

• Interface with cross-functional teams including mechanical, electrical and electronics engineers.

• Collaborate with manufacturing teams to optimize material processing and industrialization.

• Mentor junior engineers and contribute to technical strategy and innovation roadmaps.

• Contribute to patent filings, technical documentation, and compliance with IEC/IEEE standards.

• Develop and validate electronic control boards for switching and protection systems.

Requirements

• Minimum 8 years of experience in R&D for low voltage and/or medium voltage electric equipment.

• Good understanding of Railway protection systems – Modern DC microgrids.

• English fluent mandatory, French strong plus.

• Master’s or PhD in Electrical Engineering, Power Electronics, Applied Physics or similar.

• Strong understanding of electro-mechanical and magnetic systems.

Strong plus:

• Experience with testing and validation in high-voltage environments.

• Knowledge of High-speed DC circuit breakers.

Plus:

• Good knowledge in power electronics switching devices.

• Thermal and dielectric analysis.

• Modeling and simulation in MATLAB/Simulink - COMSOL.

• Material processing and manufacturing techniques.

• Electronic board design and integration.

• CAD 3D design tools (SolidWorks).

• Curious, attentive to detail, team player.

Benefits

We foster flat hierarchies and direct communication, enabling quick decisions and strong collaboration across all levels. You’ll be trusted with real responsibility and encouraged to take initiative, with plenty of opportunities to grow both personally and professionally.

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