VueJS and WordPress Payment Gateway Development

I am in need of an experienced VueJS and WordPress developer to assist in the development of a custom payment system for my website.

Key Features:
- User Registration and Login: The system should allow users to create accounts and log in securely.
- Transaction History: Users should be able to view their past transactions.
- Refund Processing: As part of the system, the ability to process refunds should be included.

Payment Methods:
- Credit/Debit Cards
- PayPal
- Bank Transfer

Ideal candidates should have prior experience in:
- VueJS
- WordPress
- Payment Gateway Integration
- User Management Systems
- Security Best Practices

Your input in this project is essential. Please be prepared to provide examples of your prior work in similar projects.