Convergpay payment Gateway needs to be integrated on core php website using js method with setting up cron job for sending auto emails on payment

I am looking for a developer to integrate the Convergpay payment gateway onto my core PHP website using the JavaScript method. Additionally, the website should send emails to customers automatically on payment confirmation and payment failure using cronjobs. The auto email shooting system is already set up but needs to be debugged a bit.

Preferred Payment Gateway:
- Convergpay

API Keys and Account Setup:
- I already have the necessary API keys and accounts set up for the payment gateway.

Auto-Emails:
- I would like to send both payment confirmation and payment failure emails.

Ideal Skills and Experience:
- Proficiency in core PHP and JavaScript
- Experience with integrating payment gateways, specifically Convergpay
- Knowledge of setting up cron jobs for automated email sending
- Strong attention to detail to ensure successful integration and email delivery.

Only ping if you have good knowledge of payment gateway integration PHP emails cron jobs and Java script.

Find below the developer guide for the gateway

https://developer.elavon.com/docs/converge/1.0.0/integration-methods/checkoutjs
https://developer.elavon.com/docs/converge/1.0.0/transaction-types/credit-card-transactions/ccsale
https://developer.elavon.com/docs/converge/1.0.0/api-reference/error-codes#potential-issuer-response-codes