Freelance Project Opportunity – Senior Software Engineer (Madrid, Hybrid) We are looking for a

Senior Software Engineer

to join a

freelance project

in Madrid.

This is a

hybrid role

with regular on‑site work required.

Key Skills & Experience:

Strong background in C/C++ development for embedded systems

Proficiency in Linux

Experience in software design & architecture for real‑time sensor applications

Knowledge of CI/CD processes and version control

Familiarity with SoC platforms

Ability to analyze and refactor legacy C++ code

Experience with API design & development (REST, ONVIF, CGI)

Strong knowledge of internal protocols : MQTT, serial communication, sockets

Location:

Madrid (Hybrid, regular on‑site presence)