Senior Software Engineer

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)