Safetec GmbH is an independent company of E.ON SE with headquarters in the beautiful city of Heidelberg. Over the past 30 years, Safetec has developed into the market and technology leader in radiation protection and nuclear decommissioning. We provide our customers with expert advice and support throughout the entire life cycle of a nuclear facility, from construction and operation through to dismantling. With around 700 employees, innovative technologies and solutions, we make a decisive contribution to the success of nuclear decommissioning in Germany. Are you looking for a new professional challenge in an industry with secure future prospects and high social relevance? We are looking for a Software Developer (m/f/d) for API and Hardware Integration to support our development team in Heidelberg as soon as possible. Our offer: Stability: You will receive a permanent employment contract with pay in line with the IG-Metall collective agreement, including vacation and Christmas bonuses Work-life balance: 30 days' annual leave and a flexible working time account give you plenty of freedom Strong company culture : You can expect flat hierarchies and an open working atmosphere characterized by real teamwork Security for the future: We provide you with additional security with a company pension scheme and supplementary health insurance (visual aid, dentures, daily sickness allowance) Further goodies: JobRad, corporate benefits and much more Your tasks: Connection of frontend and backend via existing APIs: Integration of the Qt-based frontend with the C++ backend using existing API Creation and adaptation of APIs: Development of own APIs for the integration of external hardware and software components as well as optimization of existing API interfaces Integration of hardware components: Integration of various hardware components via different interfaces and their integration into the existing system architecture Modularization and expansion of the software architecture: Collaboration on the development of a modular and scalable architecture that facilitates the integration of external SDKs and APIs Integration of 3rd party SDKs: Integration and adaptation of external software development kits into the existing software infrastructure Your profile: Sound knowledge of C++ (essential) and C# (desirable) Extensive experience with the connection and integration of external SDKs, as well as the creation of own SDKs Extensive experience in working with REST APIs and knowledge of various interfaces and their protocols Experience in dealing with QT and databases/database communication (HTTP requests) would be desirable Sound experience in working with Git is a prerequisite Fluent in written and spoken English; knowledge of German is an advantage A self-directed and structured work style, attention to quality, and ability to work as part of a team We are looking forward to receive your complete application documents including your CV and references. We, Johannes and Nora from Recruiting, will be happy to answer any questions you may have