Flutter Developer Needed — Configure, Build & Submit Completed App to App Store and Google Play

Description:

I have a fully written, complete Flutter codebase for a real-time baseball prediction app called UB the Pitcher. Every line of code is already written. I need a skilled Flutter developer to configure it with my credentials, build it, test it, and submit it to both the Apple App Store and Google Play Store.

This is not a coding job. You are not writing anything. The code is done.

Your role is purely technical configuration, testing, and store submission.

About the app:

UB the Pitcher is a real-time MLB pitch prediction game. Users predict pitch outcomes during live games and earn points. The app includes live scoring, leaderboards, user profiles, in-app subscriptions, ads, and a multiplayer challenge room system.

Everything already done:

Complete Flutter codebase fully written and ready to hand over

All screens, logic, scoring, and data connections coded

Firebase project created

AdMob account created

RevenueCat account created

Railway relay server live and receiving real-time Sportradar game data

Your job is:

Set up Flutter development environment

Configure app with my API keys and credentials

Run on iOS and Android simulators and confirm everything works

Connect and verify live WebSocket data feed during a real MLB game

Test on real physical devices

Set up TestFlight for iOS beta

Set up Google Play Internal Testing Track for Android

Fix any environment-specific issues that arise

Submit to Apple App Store

Submit to Google Play Store

Stay on the job until both stores approve the app

Hard requirements:

Must own a Mac — non-negotiable for iOS builds

Must have previously submitted Flutter apps to both App Store and Google Play

Proven Firebase and WebSocket experience in Flutter

RevenueCat or equivalent subscription integration experience

Daily communication and updates during active work