pcb circuit designer

I'm seeking an experienced developer to create an IoT security system for commercial time and attendance tracking. The system should utilize fingerprint, facial recognition, and RFID biometric authentication methods.

Key Requirements:
- Biometric Authentication: Fingerprint, Facial Recognition, RFID
- Primary Use: Time and Attendance Tracking
- Environment: Commercial Settings

Ideal Skills and Experience:
- Expertise in IoT development
- Proficiency in biometric authentication technologies
- Experience with commercial security systems
- Strong background in software and hardware integration
- Knowledge of data security and privacy regulations

Please provide a portfolio showcasing similar projects.