Integration of PowerTranz Hosted Payment Page Gateway (previously FAC) on WordPress

We are looking for a developer with experience of PowerTranz Payment Gateway (previously FAC) to integrate the PowerTranz Hosted Payment Page (HPP - https://powertranz.com/payment-gateway/hosted-payment-page) on a Church (wordpress) website. The forms will be used to collect donations from church members.

For guidance I am attaching the PowerTranz HPP integration developers guide.

Requirements:
- Create a simple web form to collect the users donation data (name, email, members church name, members ID number etc).
- Integrate PowerTranz HPP in the TEST/SANDBOX environment
- Enable credit and debit card processing
- Enable recurring payments functionality
- Test and validate the entire payment process
- Integrate PowerTranz HPP in the LIVE environment
- Test and validate the entire payment process
- Ensure security and compliance with vendors payment standards

Ideal Skills and Experience:
- Strong experience with WordPress development
- Experience with payment gateway integrations, specifically PowerTranz
- Knowledge of secure payment processing protocols
- Experience in setting up recurring payment systems

Please provide relevant work samples and a brief plan on how you will execute this integration.