Hi.
I saw your description carefully and I am confident I can full fill your requirement.
So I provide my skills in hopes of working with you.
I am full-stack developer and I have 3+ years of ample experience in the mobile app(Android & iOS) development.
-UI/UX Design
-Front end: React Native/Redux, Typescript, JXS/SCSS. (If you want Native language, I can use Android & Swift)
-Back end: PHP(MySQL), NodeJS, ExpressJS, MongoDB, Google Firebase, Amazon Web Service
-Integration: RESTful APIs, Payment Gateway, Google Map API, AR
-In-App purchase & push notification & Approval to AppStore
Please feel free to contact me if you want.
I look forward to working back with you.
Thank you!