Develop backend API using PHP Laravel

It is a social media mobile application. Current version of the app is only available in Google Playstore.
Refer to the following link: https://play.google.com/store/apps/details?id=jejalin.scom.android

Expected outcome: fixing and optimizing current PHP Laravel backend API.

Technical Info:
- Language used: PHP Laravel
- Integration required: with firebase (for notification), SMTP Email generator, payment gateway integration.
- Source control: Github

Timeline:
Expected to be completed within 2 Weeks. Let's discuss it first.