Softwareentwickler jobs in Germany

Founded in 2019, Marvel Fusion is Europe’s leading fusion energy company, uniting 75 scientists, engineers, and entrepreneurs across our locations in Munich and Colorado.

Backed by over €385 million in public and private funding, we’re driven by a shared mission: to deliver clean, abundant energy to the world.

By joining us, you will be:

• Solving one of the most complex technological challenges known to humanity, harnessing Fusion on Earth
• Part of a highly purpose-driven team working on providing the world with clean, safe and abundant energy
• Working alongside world-leading scientists and entrepreneurs in the field of Fusion
• Part of a start-up where growth on a company and individual level is the default

As a Control System Software Engineer you will participate in development of Control Systems for various components of a laser facility. You will work at the border between complex time critical hardware components and modern software technologies, establishing tools for automated development, testing and deployment of Control System software. You will work in a close contact with engineers and scientists who develop and use high power laser systems. Your work will be critical to achieving stable, repeatable and safe laser operation on the path to commercial fusion energy.

• Develop, program and commission realtime automation architectures and machine protection systems around Beckhoff PLCs for various subsystems.
• Design, build and support CI/CD pipelines for the Control System software.
• Elicit and manage technical requirements together with engineers and scientists.
• Collaborate on, and improve architecture and technology stack of the Control Systems.
• Define and document functional specifications, test plans and acceptance criteria.

• Bachelor’s or Master’s degree in IT or related Engineering field
• 3+ years of hands‑on industry experience in software development, related to backend or control system programming
• Extensive experience programming in OOP languages like: C++, Python, Java, C#, Kotlin, Rust or similar
• Understanding of modern software development practices, processes and tools (CI/CD, Git, automated testing, etc.)
• Experience of working in a software development team following established software development practices and processes
• Fluent English; German proficiency is welcome
• Flexibility, adaptability and a hands‑on, can‑do attitude

• Experience with Beckhoff PLCs and TwinCAT (structured text, ladder or function blocks)
• Experience with EPICS (epics-controls.org) development
• Experience with development of distributed systems
• Experience of working with scientific facilities like laser laboratories, accelerators, etc
• Understanding of real‑time control concepts and common industrial fieldbuses and interfaces such as EtherCAT, Modbus‑TCP, and serial protocols

Our mission is motivation enough for many. But we also support our team with benefits that foster wellbeing and growth:

• Public transport reimbursement
• EGYM, Wellpass fitness club access
• Complimentary health insurance
• Professional development support
• Healthy office snacks

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