3.3KW EV Charger Firmware Development

I'm looking for an experienced firmware developer for a 3.3kw Electric Vehicle Charging Station.

Key Features:
- User Authentication: The firmware should support secure user login systems.
- Energy Consumption Monitoring: Real-time tracking of energy usage is essential.
- Remote Firmware Updates: The ability to update the firmware remotely is a must.

Integration:
The firmware needs to integrate seamlessly with:
- A Mobile App
- A Web Portal
- A Cloud Service Provider

User Interface:
The charger will use a Command Line Interface (CLI). Experience designing and implementing CLI for hardware is a plus.

Ideal Skills:
- Embedded Systems Programming
- IoT Device Firmware Development
- User Authentication Systems

Please provide examples of previous work relevant to this project in your proposal.