---
title: 'Senior Software Engineer (Dev Platform) at Proxima Fusion'
canonical: 'https://feeny.ai/job/senior-software-engineer-dev-platform-proxima-fusion-munich-e428aqt2184t'
type: 'job'
last_seen: '2026-11-07'
---

# Senior Software Engineer (Dev Platform) at Proxima Fusion

- **Company:** Proxima Fusion
- **Location:** Munich, Germany
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-06-11
- **Last confirmed live:** 2026-11-07
- **Apply:** https://jobs.ashbyhq.com/proxima-fusion/5aebfef0-0c2c-4c87-990d-bbbbd53b94d2/application

**Skills:** Cloud Infrastructure, IaaC, Kubernetes, K8s, Ray, Dask, Docker, PEX, CI/CD, Devcontainers, Monorepos, Observability, Distributed Computing, High-Performance Computing

> Join the Dev Platform team to build and manage cloud infrastructure, CI/CD pipelines, and high-performance computing clusters. You will enable simulation-driven stellarator design by creating robust software tools and optimizing development workflows for research and engineering teams.

## Job description

## WHO WE ARE

Proxima Fusion is Europe’s fastest-growing fusion company and the continent’s best-funded fusion player, as well as the first spin-out from the Max Planck Institute for Plasma Physics (IPP). Backed by over €650M and powered by a growing team across Munich, Zurich, and Oxford, we are developing the hardware and infrastructure needed to deliver the world’s first commercial stellarator fusion power plant. Our concept advances the most mature fusion technology out there, the Wendelstein 7-X stellarator, through two next-generation machines: Alpha and Stellaris. Our work combines stellarator optimization, advanced computation, machine learning, and high-temperature superconducting magnets to unlock higher-performance designs that were previously out of reach. Turning these designs into a functioning fusion power plant requires excellence and ownership across every discipline, from physics and engineering to software, manufacturing, law, and business functions.

## 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

- Build and scale the software infrastructure that enables exploration of the vast hyper-dimensional space of stellarator design
- Develop the core data, compute, and analysis tooling used by teams across the company
- Collaborate directly with fusion experts, engineers, and AI researchers to turn their workflows into robust infrastructure
- Shape how software is developed at Proxima - practices, quality standards, and architecture

## WHAT YOU WILL DO

- Design and develop a platform that helps simulation, optimization and stellarator design teams to overcome their challenges and achieve their goals more efficiently.
- Champion the Cloud Infrastructure Operations.
- Manage general cloud infrastructure (including IaaC, permission management, and cloud efficiency).
- Support the democratization of cloud computing (e.g. K8s, Ray, Dask, Docker, PEX).
- Unify and streamline the development experience (including CI/CD, Devcontainers, and monorepos).
- Improving observability.
- Manage Distributed Computing and High-Performance Computing clusters for research, stellarator design and optimization.
- Raise the bar in our cross-org DevOps practices and optimize our DORA metrics.

## WHO YOU ARE

- We’re seeking a software engineer with a strong foundation in computer science and an understanding or hands-on experience with DevOps, CloudOps, or Platform engineering practices.
- Familiar with the development and management of scalable cloud infrastructure, ideally as used in science, ML or other data processing-heavy use cases.
- Experienced in end-to-end/full-stack system design, ideally within an environment supporting physics, engineering, or AI teams.
- Proficient in Python and Linux.
- Driven to solve complex problems with simple solutions and a desire to contribute to clean energy.

## INTERVIEW PROCESS

- Recruiter Interview (30-60 min)
- Meet the Team Lead (45 min)
- Technical Interviews (3x60 min)
- CEO call (30 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.

## About Proxima Fusion

## Company Overview
- **One-liner**: A European fusion energy company building quasi-isodynamic stellarator power plants to deliver clean, safe, and abundant energy.
- **Entity Type**: Private (Series A – €130M raised in June 2025 plus €15M extension in September 2025)
- **Headquarters**: Munich, Germany (additional offices in Zürich, Switzerland and Oxford, United Kingdom)
- **Founded**: April 2023
- **Founders**: Francesco Sciortino, Lucio Milanese, Jorrit Lion, Jonathan Schilling, Martin Kubie

## Core Business
- **Primary industry**: Fusion energy (energy production)
- **Target customers**: Energy companies, grid operators, and technology partners (B2B / Enterprise)
- **Mission**: “Enabling human ambitions in a future with fusion energy” – providing abundant, clean, and safe energy for all.

## Products & Services
- **Alpha Demonstration Stellarator**: A prototype stellarator designed to demonstrate net energy gain in steady-state, planned for first plasma around 2031.
- **Stellaris Fusion Power Plant Concept**: A peer-reviewed, first-of-its-kind design for a commercial stellarator fusion power plant, targeting grid deployment in the late 2030s.
- **Stellarator Model Coil (SMC)**: A demonstration high-temperature superconducting (HTS) magnet completed to validate coil technology for Alpha and Stellaris.
- **Core Technology**: Quasi-isodynamic (QI) stellarator design combined with computational optimization, HTS magnets, and rapid prototyping – all leveraged from the record-breaking Wendelstein 7-X experiment.

## Market Standing
- **Valuation / Market Cap**: Not publicly available (private company)
- **Key Metric**: Total funding ~€200M (≈$230M) in public and private capital, including pre-seed (€7.5M), seed (€20M), Series A (€130M + €15M extension), and additional grants from the European Innovation Council and the German Federal Ministry of Education and Research.
- **Notable Investors / Partners**: Plural Platform, UVC Partners, redalpine, Bayern Kapital, DeepTech & Climate Fonds, Max Planck Foundation, High-Tech Gründerfonds, Visionaries Club, Wilbe. Strategic partners include the Max Planck Institute for Plasma Physics (IPP), Karlsruhe Institute of Technology (KIT), and Paul Scherrer Institute (PSI).
- **Growth Signals**: Team grown from founding to 100+ world-class scientists, engineers, and operators; completion of the Stellarator Model Coil; publication of the Stellaris power plant concept; convening an Industrial Development Board to scale European fusion supply chains; appointment of CFO Sergei Galperin (June 2026); integration of AI-driven design methods.

## Competitive Advantages
- **QI Stellarator approach**: Toroidal currents cancel to zero, enabling inherently stable, continuous operation without the plasma disruptions that challenge tokamaks.
- **Direct lineage from W7-X**: As the first spin-out from the Max Planck Institute for Plasma Physics, the team builds on decades of stellarator research and the world’s most advanced stellarator experiment.
- **Simulation-first + rapid prototyping**: Combines cutting-edge computational design with HTS magnet technology to accelerate development timelines.
- **Top-tier talent pool**: Team members from Max Planck IPP, MIT, SpaceX, Tesla, McLaren, Google X, EPFL, Stanford, Cambridge, and other leading institutions.
- **Deep European ecosystem ties**: Close collaboration with public research institutes, industrial partners, and government funders.

## Strategic Focus
- **Near-term (2026–2031)**: Complete the design and construction of the Alpha demonstration stellarator, demonstrate net energy in steady-state, and advance HTS magnet technology through continued R&D.
- **Mid-term (2030s)**: Scale from Alpha to the Stellaris fusion power plant, targeting first electricity to the grid in the late 2030s.
- **Long-term**: Establish a new clean energy infrastructure by industrializing stellarator power plants and securing supply chains across Europe.

## Why Work Here
- **Mission with impact**: Tackle one of humanity’s greatest challenges – unlimited, clean, and affordable energy.
- **High-performance culture**: Described as a “professional sports team” where success depends on placing the right person in the right role with real ownership from day one.
- **Collaborative environment**: Work alongside exceptional peers from top tech, science, and engineering organizations; take on meaningful responsibility early.
- **Locations**: Offices in Munich (HQ), Zürich (PSI campus), and Oxford (Culham Campus) – likely on-site given the hands-on nature of fusion R&D.
- **Diverse disciplines**: Opportunities for engineers, scientists, operators, and business roles in a fast-growing deep-tech startup.

## Sources
1. [proximafusion.com](https://www.proximafusion.com/)
2. [proximafusion.com/about](https://www.proximafusion.com/about)
3. [proximafusion.com/careers](https://www.proximafusion.com/careers)
4. [jobs.ashbyhq.com/proxima-fusion](https://jobs.ashbyhq.com/proxima-fusion)
5. [en.wikipedia.org/wiki/Proxima_Fusion](https://en.wikipedia.org/wiki/Proxima_Fusion)

## Other roles at Proxima Fusion

- [Electrical Distribution Engineer](https://feeny.ai/job/electrical-distribution-engineer-proxima-fusion-zurich-spb6t755hchf) — Zurich, Switzerland
- [Infrastructure Program Manager](https://feeny.ai/job/infrastructure-program-manager-proxima-fusion-munich-zwrwpjsg3pd1) — Munich, Germany
- [Event Manager](https://feeny.ai/job/event-manager-proxima-fusion-munich-v68kbnf9vm23) — Munich, Germany
- [Intern/Working Student, Alpha Engineering Design Team](https://feeny.ai/job/intern-working-student-alpha-engineering-design-team-proxima-fusion-munich-sa9npnvnjypr) — Munich, Germany
- [Instrumentation Development Embedded Engineer](https://feeny.ai/job/instrumentation-development-embedded-engineer-proxima-fusion-munich-04bn4m38tnjt) — Munich, Germany
- [Strategy and Business Development Manager](https://feeny.ai/job/strategy-and-business-development-manager-proxima-fusion-munich-tafkpeh1405g) — Munich, Germany
- [Production Scheduler](https://feeny.ai/job/production-scheduler-proxima-fusion-munich-k9eg028d3b75) — Munich, Germany
- [Mechanical Engineer - Equipment Engineering](https://feeny.ai/job/mechanical-engineer-equipment-engineering-proxima-fusion-munich-b2dj157r4wf3) — Munich, Germany
- [Senior Computational Physicist, Stellarator Optimization](https://feeny.ai/job/senior-computational-physicist-stellarator-optimization-proxima-fusion-munich-bgat4kvxb2ww) — Munich, Germany
- [Risk and Change Manager - Alpha Delivery PMO](https://feeny.ai/job/risk-and-change-manager-alpha-delivery-pmo-proxima-fusion-munich-9m96hwspqq9k) — Munich, Germany