EV Charging System with Custom Backend -- 2

I am in need of a skilled developer to create a robust EV charging system with a custom backend.

Key Functionality:
- User Management: I need a system that supports user authentication and management. This includes user registration, login, and profile management.
- Real-time Updates: The system should provide real-time status updates on the charging stations. This is essential for user convenience and system monitoring.
- Payment Integration: I want to integrate a payment processing system. This should support invoicing and be capable of handling different payment methods.
- OCPI and OCPP Integration: The ability to work with these standard protocols is a must.

Backend Specification:
- Web Socket Support: The backend server must support web sockets to facilitate real-time communication.
- RESTful API: It should provide a RESTful API for easy integration with other systems.
- GraphQL: I also require GraphQL support to enable efficient querying of data.

UI Design:
- Custom Branding: The user interface should be customizable and reflect the brand's identity. It should be visually appealing and user-friendly.

Ideal Candidate:
- Proficient in backend development, specifically in creating scalable and secure systems.
- Experience with EV charging systems and protocols like OCPI and OCPP.
- Familiar with integrating payment gateways and ensuring secure transactions.
- Adept at UI design with a focus on customization and branding.