(Sen.) Software Developer (d/f/m) | PLC / Embedded Systems

Your mission
A future without fossil fuels - that is our vision. Biogas is the key success factor for a 100% renewable, decentralized energy supply of tomorrow. Our mission is to replace the combustion engines used today with highly efficient and flexible micro power plants. Thanks to innovative solid oxide fuel cells, we provide 24/7 supply security, enable long-term seasonal energy storage and reduce megatons of CO2 emissions.

Sounds exciting? Then apply as Software Developer (d/f/m) at Reverion:

• Develop object-oriented PLC applications using IEC 61131-3 (Structured Text), C/C++, or Rust

• Build and maintain our internal PLC function library for application engineering

• Conduct peer reviews and contribute to documentation to ensure quality and maintainability

• Optimize libraries for real-time operation and resource efficiency on embedded platforms

• Support deployment and troubleshooting of developed libraries in field applications and test rigs

• Work with TwinCAT to scale our current PLC infrastructure, with a planned transition to a modern embedded software architecture starting in 1–2 years

• Continuously improve development workflows, versioning, and testing strategies (e.g., CI/CD, unit tests)

Your profile

• Degree in computer science or a related technical field — or equivalent practical experience

• At least 3 years of professional experience as a software developer

• Proficiency in object-oriented software design and writing clean, maintainable codes

• Strong programming skills in an object-oriented language, preferably C++ or Rust

• Comfortable using Git and collaborating in a modern development environment

• Experience with Unix-based real-time systems or driver development is a plus

• Experience with PLC platforms (e.g., TwinCAT 3, CODESYS, TIA Portal) is a plus, not required

• Familiarity with industrial communication protocols (e.g., EtherCAT, Modbus, CANopen) is a bonus

• Strong problem-solving and troubleshooting abilities

• Able to prioritize short-term speed without compromising long-term maintainability

• Thrive in a fast-paced, dynamic startup environment

• Take ownership and proactively drive improvements

• Fluent in English; conversational German is a plus

What we offer

• A key role in developing real-time software for autonomously operated clean energy systems

• The opportunity to bring modern software practices into the industrial automation space

• A steep learning curve with deep exposure to automation and embedded systems — no prior experience required

• A collaborative and open-minded startup culture where your ideas matter

• Flexible hours and hybrid work options

• Flat hierarchies in a young team with the opportunity for personal responsibility

• Personal development support, bike leasing, pension scheme, and other benefits

• Modern IT equipment and well-equipped office spaces

• Free drinks, coffee, and snacks at our locations

• Regular team events and a true startup atmosphere

• Recreation areas including foosball table, spikeball, table tennis, and more