Real-Time GPS & QR Access Control

I'm seeking an experienced developer to integrate socket communication, real-time GPS tracking, and a QR scanner for access control into my IoT project.

Key Requirements:
- Real-Time GPS Tracking: Accurate and continuous location data.
- QR Scanner: For access control, ensuring secure entry.
- Socket Communication: Essential for enabling seamless data exchange between devices.

Ideal Skills:
- Proficiency in Linux
- Strong MySQL database management
- Experience with socket programming
- Familiarity with IoT devices and real-time data processing

Looking for a reliable freelancer to deliver a robust and secure solution. Please provide examples of relevant work and experience.