How are you doing?
I have been developing mobile applications with Java / Kotlin for Android and Swift / Objective-C for iPhone for over 6 years.
It is also no problem for me to develop backend for mobile apps with web frameworks such as Laravel, Code Igniter, and Express.
Please feel free to check the skills necessary for this project thru any tasks.
I would like to discuss this in detail via chatting.
Thanks and regards.