Full-time

Senior Software Engineer

Posted by Cis Electronics Engineering • foz, foz, Spain

📍 foz, foz 🕒 June 19, 2026

About the Role

Freelance Project Opportunity – Senior Software Engineer (Madrid, Hybrid)


Asegúrese de presentar su candidatura con toda la información solicitada, tal como se expone en la descripción del puesto a continuación.

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 xsgfvud with API design & development (REST, ONVIF, CGI)
  • Strong knowledge of internal protocols: MQTT, serial communication, sockets

Location: Madrid (Hybrid, regular on‐site presence)

Ready to Apply?

Submit your application today and take the next step in your career journey with Cis Electronics Engineering.

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