Hi, there. I am confident I can full fill your requirement and I provide my skills in hopes of working with you. I am full-stack developer and I have 3+ years of experience in the Flutter app development.
-Flutter(DART), PHP(MySQL), NodeJS, Cloud Services(Google Firebase, Amazon Web Service), RESTful APIs Integration, Payment Gateway Integration, Social Network API(Facebook, Google, Twitter, Instagram) Integration, Google Map API Integration, Video/Audio/Text-Chat support, In-App purchases(IAP) & Push Notification & Approval to AppStore
Please feel free to contact me if you want. I look forward to working back with you. Thank you!