PFreelance Project Opportunity – Senior Software Engineer (Madrid, Hybrid) /ppbr/ppWe are looking for a bSenior Software Engineer /b to join a bfreelance project /b in Madrid. /ppThis is a bhybrid role /b with regular on‑site work required. /ppbr/ppb Key Skills Experience: /b /ppbr/pulliStrong background in bC/C++ development /b for embedded systems /liliProficiency in bLinux /b /liliExperience in bsoftware design architecture /b for real‑time sensor applications /liliKnowledge of bCI/CD processes /b and bversion control /b /liliFamiliarity with bSoC platforms /b /liliAbility to analyze and refactor blegacy C++ code /b /liliExperience with bAPI design development /b (REST, ONVIF, CGI) /liliStrong knowledge of binternal protocols /b: MQTT, serial communication, sockets /li /ulpbr/ppbLocation: /b Madrid (Hybrid, regular on‑site presence) /p