Software Engineer (m/f/d)

Mission Brief As a Software Engineer in the Ground Control Systems team, you will contribute directly to the development and maintenance of critical libraries and tools for our in-house software. You will work on software that operates hardware and real missions, where correctness, robustness, and clarity truly matter. This role offers the opportunity to shape foundational systems used across teams, balancing clean architecture with real ‑ time and operational constraints. Your work will be utilized in aiding the development of new aerospace technologies and platforms. Your Role in Our Space Mission: Implement and maintain modular control system libraries and reusable software components in Python, C#, TwinCAT.. Contribute to real‑ time system code running on RTOS environments, including sensor/actuator interaction. Develop and support driver‑ level and HAL ‑ layer software. Help design and implement system interaction logic and state-machine‑ based behaviors. Build simulation tools , and testing frameworks to support software validation. Work cross‑ functionally with hardware engineers, PLC engineers, and UX teams to ensure coherent, safe system behavior. Qualification Checklist At least 4 Years of experience in Software Engineering with RTOS environments. Strong foundation in software engineering fundamentals. Experience with Python and .NET, and familiarity with at least one programming language used in real‑ time or PLC/embedded contexts (e.g. C#, C/C++, Rust, etc.). Understanding of control systems, deterministic behavior, and basic real‑ time constraints. Hands-on experience with testing practices for embedded or automation systems (unit tests, HIL/SIL, integration tests). Competence with CI/CD pipelines, version control, and structured development workflows. Organized and proactive with high attention to detail and can-do attitude with outstanding communication skills Fluent in English Bonus Skills Previous experience with simulation models (e.g., with MATLAB/Simulink). Previously released desktop applications and/or libraries for control systems. Experience with Beckhoff TwinCAT Benefits Employee Participation Program: Share in our success through our virtual company share program 30 days of vacation: Enjoy the days off to relax and recharge Company pension plan: Secure your future with our company pension plan, featuring a 20% employer contribution after the probation period Subsidised lunch: Stay energised with delicious, subsidised lunches every day Public transport ticket: Commute with ease using a fully financed Deutschlandticket Sport Clubs membership: Stay fit with our sponsored sports club memberships (EGYM Wellpass) Individual learning allowance: Grow your skills with an individual learning budget granted after the probation period Childcare allowance: Receive a childcare allowance for your non-school-age children And Much More! Discover additional perks and benefits when you join our team Who we are We are Isar Aerospace and we are at the forefront of New Space building a modern space business to enable faster, better and cheaper access to space. Our mission is to help democratise space and use it for good in order to improve life on Earth now and for the future generations. We are a fast-growing company aiming to provide sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit. The company is privately funded by world-leading technology investors with strong commitment and support and our team is made of driven and talented people with a real passion for space innovation. We're making rockets in a way that hasn't been done before disrupting a traditional industry. If you are up for the challenge, want to work on cutting-edge projects and be part of a team changing the world for better, come, join us and launch your career! Want to find out more about us? Visit www.isaraerospace.com Data Protection We process your personal data for