Salary: 55.000 - 68.000 € per year Requirements: Several years of experience with embedded controllers, ideally STM32 Very good knowledge of C, C++ an advantage Experience in EMC-compliant circuit design and PCB design Independent, solution-oriented approach to work Enjoy tinkering - with the aim of creating functioning products Experience with KNX or other bus systems (e.g., Modbus, DALI, BACnet) - nice to have Interest in smart homes and IoT - nice to have Knowledge of object-oriented programming - nice to have Responsibilities: Independent development of complete products (hardware & software) Embedded programming in C for STM32 microcontrollers, optionally C++ Design of circuits and performance of tests and optimizations Technologies: Embedded Hardware IoT More: At Elsner Elektronik, we specialize in control systems and sensors for building automation, with a passion for what is now known as smart home since 1990. We develop and manufacture our products at our headquarters in Ostelsheim, maintaining high quality standards and utilizing the latest technology. We are currently looking for a full-time Senior Embedded Developer / Senior Software Developer to join our family-like team, where we offer a modern working environment, attractive salary, and various benefits including training opportunities, company events, and a company pension plan. last updated 5 week of 2026