Freelance Project Opportunity – Senior Software Engineer (Madrid, Hybrid)We are looking for aSenior Software Engineerto join afreelance projectin Madrid. This is ahybrid rolewith regular on‐site work required.Key Skills & Experience:Strong background inC/C++ developmentfor embedded systems Proficiency inLinux Experience insoftware design & architecturefor real‐time sensor applications Knowledge ofCI/CD processesandversion control Familiarity withSoC platforms Ability to analyze and refactorlegacy C++ code Experience withAPI design & development(REST, ONVIF, CGI) Strong knowledge ofinternal protocols: MQTT, serial communication, socketsLocation:Madrid (Hybrid, regular on‐site presence)