Ramiz R.

Senior Android and iOS developer with 12+ years shipping production mobile apps for US and European clients, including Yahoo, Plume, Portal and Unified Remote. I build native apps in Kotlin and Swift, and cross-platform apps with Kotlin Multiplatform, Flutter and React Native. Teams bring me in when an app is unstable or a release is stuck: I take over existing codebases, fix crashes and performance problems, resolve App Store and Google Play submission issues, and ship SDKs other developers build on. I lead AI integration at SKEDit. For my own products, I built ping-ai-sdk, a native Kotlin and Swift SDK for LLM integration, streaming, tool calling and on-device inference, shipped in my apps LeadPing and AutoReplyPing. Recent work: • Yahoo Fantasy Sports — redesigned core user-facing screens and refactored from MVP to MVVM, cutting the crash rate to target. • Portal (Web3 wallet) — led the Android and React Native SDKs that other teams integrate. • Unified Remote — Android app with 10M+ installs worldwide. • Plume — B2B Android app with multiple product flavors used across 10+ businesses. Native depth, cross-platform range: • Android — Kotlin, Java, Jetpack Compose, Coroutines, Clean Architecture (Google Certified Associate Android Developer). • iOS — Swift and SwiftUI, shipped multiple apps end-to-end from Figma to App Store and post-release maintenance. • Kotlin Multiplatform — production work at Plume (WorkPass, HomePass). • Flutter — Riverpod, GetX, GoRouter, Dio. • React Native — app development and SDK maintenance. • Firebase — Auth, Firestore, Remote Config, Cloud Messaging, Crashlytics, and on-device ML. I write clean, maintainable code, take full ownership of delivery, and build stable, performance-focused apps that hold up in production. If you need someone who can both lead the architecture and ship the hard parts, let's talk.