Firebase Notifications Integration for iOS

Greetings, talented Freelancer - Thank you for taking the time to read my project posting! Basically, we need someone with specialized experience to help integrate Firebase Notifications into my current mobile app's system, which has been written in Swift. Skills required: Experience in working with WKWebView and PWABuilder. Expertise in AppDelegate. Proficient in SQL and JavaScript languages. Knowledgeable in REST. Prior work in integrating Firebase Notifications. Ideally, you should have experience working with firebase integrations across iOS platforms. This project needs to be turned around quickly - we pay milestones on time and post good reviews for job well done. Thank you!