Customize & Launch Flutter Social App

I purchased a full-stack social media template from CodeCanyon that ships with a Flutter mobile front-end and a Laravel/PHP back-end. The core codebase is stable; what I now need is an experienced developer... (Budget: ₹1500 - ₹12500 INR, Jobs: App Store Optimization, Backend Development, Flutter, Google Analytics, Laravel, Mobile App Development, MySQL, Node.js, PHP, REST API)