mobile

Mobile Banking Platform

Lead Mobile Engineer

KotlinAndroid SDKRoomRetrofitCoroutinesBiometric APISQLCipher

The Challenge

A financial institution needed a mobile banking app that could work reliably in areas with poor network connectivity, handle secure transactions, and scale to millions of users — all while meeting strict financial compliance requirements.

The Solution

Designed an offline-first architecture with encrypted local storage, background sync, and conflict resolution. Built the app using clean architecture principles with Kotlin, implemented biometric authentication, and created a comprehensive testing strategy.

Results & Impact

Served 500K+ active users reliably

Achieved 99.8% transaction success rate

App worked fully offline with automatic sync

4.7-star rating on Google Play Store