Mr. Latte


Mobile Game SDK (Android/iOS Core)

Long-term maintenance and modernization of a global mobile game SDK platform under NDA, covering payment, authentication, and login modules on both Android and iOS.

What I built

  • targetSdk 30 migration and AndroidX transition
  • Staged migration from AIDL billing to Google Play Billing Library 4 → 5
  • One Store IAP V6 (SDK V19) integration and library updates
  • Facebook and Google social login library updates, overload API support
  • Session Manager-based social login validity check
  • Fastlane-based release automation (Fastfile setup)
  • Firebase integration bootstrap and sample app
  • Support libs and Gradle plugin version upgrades, jcenter sunset handling
Need a freelance expert to plan and build your product? Available to founders, teams, and businesses from product framing through launch.