Senior Integration Engineer

YOUR IMPACT

Alpha will be the first stellarator to demonstrate net energy. Achieving this milestone requires building a deeply coupled machine, where plasma, magnets, structures, cryogenics, and heating work at the edge of each discipline’s capability. As part of the integrated stellarator design team you will work in between plasma physics and technology and make sure that all stellarator systems are designed according to clear and optimal design criteria. You will ensure that modelling uncertainties are quantified and used appropriately. You will drive projects where overarching design solutions with multi-system trades need to be found.

WHAT YOU WILL DO

• Ensure interfaces, design criteria, load cases and uncertainties are correctly defined: so that engineering design can iterate quickly and with clear assumptions.
• Understand systems interactions: in order to minimize unintended consequences of the main architectural decisions.
• Solve integration challenges: Identify, track, and solve the hardest integration challenges and risks of a machine not achieving its mission requirements.
• Harness simplification opportunities: Identify, track, and address the most promising opportunities that affect the Alpha architecture.

WHO YOU ARE

• You've earned your engineering judgment on complex machines. You hold a PhD or Master's in physics, engineering, or an adjacent field, and you have years of experience in industries where integration challenges are at the heart of the design, such as aerospace or Formula 1.
• You are not afraid of different physics domains. You feel comfortable navigating the different physics regimes of a Stellarator - from waves propagating in a plasma to cryogenic properties of steel.
• You reach for whatever tool fits. Being a pen-and-paper calculation, a simulator you coded last night, or a commercial multiphysics package, the method serves the question, never the reverse.
• You build consensus. You are a low-ego high-clarity communicator who works effectively with multiple technical leads, to bring integration challenges and system-level tradeoffs to a clear decision.
• You commit to a concrete outcome. Every study, tool, and memo you produce ends in an actionable insight and a clear next step, otherwise it didn't happen.

INTERVIEW PROCESS

• Recruiter Interview (30-60 min)
• Technical Screening (30 min)
• Technical Panel (3x60 min)
• This role sits at L3 of our framework, please inquire during the recruitment process for further information.

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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Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation

Posted Nov 01, 2026

Posted Nov 01, 2026