Technical Building Systems Integration Engineer

WHO WE ARE

At Proxima Fusion, we're driven by a bold mission - to redefine the future of sustainable energy. Our unique concept, built upon the groundbreaking W7-X stellarator and the latest advances in technology, paves the way for commercially viable fusion power plants.

What's more, our work in stellarator optimization, powered by cutting-edge computation and machine learning, is propelling us into uncharted territories of fusion technology. New higher performance design points are unlocked by high temperature superconducting magnets.

To fully grasp this huge opportunity, we're building a team of extremely dedicated and passionate people who come together driving something extraordinary, radically transforming technology in the world.

WHY JOIN PROXIMA FUSION

• You will get to work on some of the most complex tech challenges to bring abundant, safe, clean energy to the world.
• You'll get to join and learn from an exceptional selection of accomplished and driven individuals.
• Do your life's best work and enjoy the journey.
• Get to show that big things are possible in Europe when you assemble the best talent.

YOUR IMPACT

You define how all building-services systems (TGA- Technical Building Equipment / Building Services Engineering ), electrical power distribution, and cryogenic utilities integrate with the fusion machine. You lead cross-disciplinary integration reviews, resolve routing and corridor logic, and ensure that Alpha, Proxima Fusion's first fusion demonstrator - and later Stellaris, our first-of-a-kind fusion power plant have coherent, maintainable, and buildable utility systems aligned with both physics and construction constraints.

WHAT YOU WILL DO

• Lead integration reviews for TGA, electrical, and cryogenic systems, ensuring constructability and clear interfaces with building and machine systems.
• Define routing strategies, utility corridors, technical spaces, penetrations, and interface envelopes across Alpha and into early Stellaris assumptions.
• Translate machine-engineering requirements (vacuum, cryo, high-power electrical, cooling) into building-ready inputs for external partners.
• Identify conflicts early using federated models, and ensure issues are resolved with disciplined configuration and documentation.
• Work closely with Structural Integration, the BIM Specialist, and the Project Manager to maintain a consistent, buildable engineering baseline.

WHO YOU ARE

• Degree in mechanical engineering, building services engineering, electrical engineering, or related field.
• Experience integrating utilities or building-services systems in complex technical or industrial environments.
• Comfortable working with incomplete or evolving requirements and shaping early engineering solutions.
• Skilled at identifying constructability and operability issues early through digital model review.
• Able to align diverse stakeholders around clear interface logic.

INTERVIEW PROCESS

• Recruiter Interview (30-60 min)
• Technical Screening (30 min)
• Technical Panel (3x60 min)
• CEO call (30 min)

At Proxima Fusion, our mission is bold: making limitless clean energy a reality. To get there, we need a high-performing, diverse team that brings different perspectives, challenges assumptions, and builds together with purpose. We know that diversity of thought and experience leads to better ideas, stronger execution, and a more resilient team. We don't look at how you identify, what you look like, who you choose to worship or what ethnicity you are. We care about what you can bring to the table.