Building stellarator fusion power plants—the clearest, most robust path to commercial fusion energy.
Building stellarator fusion power plants—the clearest, most robust path to commercial fusion energy.
Headquarters: Munich, Germany (offices at PSI, Switzerland and Culham, UK)
Founded / Spin-out: 2023 (spin-out from Max Planck Institute for Plasma Physics)
Tech focus: Quasi‑isodynamic (QI) stellarators with high‑temperature superconducting magnets
Employee count: Approximately 137
Funding (reported): Total > €185M after a €130M Series A (June 2025) plus earlier seed/pre-seed
Commercial fusion energy / electric power generation
2023
Electric Power Generation
€7.5M (pre‑seed / extension reported)
Pre‑seed and extension reported in 2023
≈€20M
Seed round reported April 9, 2024
€130M
Series A announced June 11, 2025
“Participation from European VCs, family offices and strategic investors including Cherry Ventures, Balderton Capital, UVC Partners, Plural, redalpine and others”
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
YOUR IMPACT You’ll lead the design and delivery of internal AI-powered tools, working hands-on across product definition, software architecture, and rapid prototyping. You’ll own the full product lifecycle, shaping the backlog of our AI strategy, build compounding workflows together with the rest of the company and report ROI directly to the leadership team.
What You Will Do
Who You Are Product + Tech Ownership: You have a track records of building products end-to-end (from idea to working prototype, preferably having worked with AI integration)
System Design: You can architect clean, maintainable systems that integrate APIs, data pipelines, and user interfaces.
Full-Stack Engineering: Comfortable writing and deploying backend and frontend code in a fast-paced environment.
User-Centered Thinking: You care about whether people actually use what you are building and how they are using it.
Strongly driven: You can generate context for yourself proactively and are not afraid to dive into use cases ranging from plasma physics to structural engineering to big project management or controlling.
INTERVIEW PROCESS
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.
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