Mustinsar Saeed

Android Developer

CloudES • Fulltime

Dec 2024 - Present • 1 yr 8 mos

I build and maintain production Android apps in Kotlin and Jetpack Compose, with most of my time spent on stability, monetization and release readiness. - Diagnose production crashes and ANRs from Crashlytics, Logcat and Profiler data — including release-only and device-specific failures that don't reproduce in debug builds - Modernize live codebases toward MVVM and Clean Architecture incrementally, so existing users never see a regression mid-migration - Ship AdMob monetization with UMP consent gating, and Google Play Billing for subscriptions and in-app purchases — including the acknowledgement and entitlement logic that silently loses revenue when it's wrong - Integrate REST APIs with Retrofit and OkHttp, with offline caching in Room and DataStore, so failures surface to the user instead of hanging - Prepare and validate Play Store releases: target API compliance, policy requirements, and signed builds that pass Console review first time

Android Developer

Logic Triangle Consulting • Fulltime

Apr 2021 - Dec 2024 • 3 yrs 8 mos

Shipped and maintained Android apps across multiple industries — from first build through Play Store release and ongoing production support. - Took apps from Figma designs to shipped Kotlin and Compose implementations, and supported them after launch rather than handing off at release - Resolved crashes, ANRs, memory leaks, Gradle failures, device-compatibility problems and Play Console errors on apps already serving real users - Refactored legacy Java codebases to Kotlin and improved startup and runtime performance on apps that had accumulated years of technical debt - Implemented Firebase Crashlytics, Analytics, Auth and Cloud Messaging, plus Maps and location features - Handled AdMob, UMP consent, Google Play Billing and Play Store release preparation across the portfolio - Contributed to Flutter projects and integrated third-party AI APIs where a cross-platform approach was the right call