CIS Electronics Engineering is seeking a Senior Software Engineer for a freelance project based in Madrid. This hybrid role requires a strong background in C/C++ for embedded systems and proficiency in Linux. The ideal candidate will be responsible for software design and architecture for real-time sensor applications, with a focus on analyzing legacy code and API development.

This position also offers opportunities to work with CI/CD processes and various internal protocols. Regular on-site attendance is necessary, facilitating collaboration with the team.