Senior Magnet Engineer

Transmutex SA • Geneva, IL

20d

About The Position

At Transmutex, we’re rethinking nuclear energy from the ground up. Our mission: build the world’s first accelerator-driven system to produce clean, safe, and scalable energy. It’s bold, it’s challenging — and it requires brilliant engineering at every step. That’s where you come in. What You’ll Do As our Senior Magnet Engineer, you’ll take the lead on designing and building the magnets that make our accelerator tick. You’ll be hands-on from concept to reality: modelling, prototyping, testing, and making sure our systems work reliably in the real world.

Requirements

• Master’s (with 7+ years' relevant experience) or PhD (with 3+ years experience) in Physics, Electrical/Mechanical Engineering, or similar.
• Solid experience designing and/or building accelerator magnets.
• High proficiency with magnet design/simulation tools (OPERA3D, COMSOL, ANSYS, CST, or similar), experience with CAD software (Solidworks, CATIA etc.) is a plus
• Practical know-how: fabrication, assembly, measurements, testing.
• A builder’s mindset: proactive, curious, and ready to solve hard problems.
• Strong communication skills in English (French and/or German is a plus).

Nice To Haves

• Familiarity with accelerator tech and beam dynamics is a bonus, not a blocker.

Responsibilities

• Design and optimize accelerator magnets (large cyclotron sector magnets, dipoles, quadrupoles, solenoids, correctors).
• Perform electromagnetic field simulations and analyse results to guide magnet design.
• Translate simulation outcomes into detailed technical specifications, including material properties, cooling requirements, and mechanical integration.
• Collaborate closely with our mechanical, beam dynamics, RF and diagnostics teams — true cross-disciplinary engineering.
• Oversee builds with partners and vendors, making sure magnets meet spec.
• Get hands-on with testing, troubleshooting, and iterating designs.
• Contribute ideas that push performance, safety, and innovation further.
• Participate in o ccasional missions to our colleagues within Switzerland (e.g. PSI, CERN) or abroad are part of this position.

Benefits

• We offer competitive remuneration and social security, accident/disability insurance and pension plans; one day per week work from home, as well as five weeks paid vacation.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Number of Employees: 11-50 employees