Sanjay K.

Android & iOS Developer | Kotlin | Jetpack Compose | Compose Multiplatform | Swift | 8+ Years I build high-performance, production-ready mobile applications for both Android and iOS - clean architecture, smooth UX, and code that scales. Over the past 8 years, I've taken apps from napkin sketch to Google Play and the App Store across industries including fintech, e-commerce, live streaming, and enterprise tools. Whether you come with a detailed spec or just an idea, I'll help you ship something users actually want to use. What I bring to your project: If you already know what you want - I'll build it right, on time, with clean and maintainable code. If you're still figuring out the features and technical direction - I'll help you define requirements before a single line of code is written. That saves you time, money, and painful rebuilds later. Core Expertise: Cross-Platform Compose Multiplatform (Android + iOS + Desktop), shared business logic with Kotlin Multiplatform, single codebase across platforms without sacrificing native feel Android Development Jetpack Compose, LiveData, Room, Navigation Graph, WorkManager, Coroutines, RxJava, Android SDK, Android TV (Leanback), Material Design iOS Development Swift, SwiftUI, UIKit, Core Data, Combine, Xcode, App Store deployment Architecture & Patterns MVVM, Clean Architecture, Dependency Injection (Hilt / Dagger 2), MVC Networking & APIs Retrofit 2, REST/JSON/XML, Google APIs (Maps, Drive, Places, Tasks) Backend & Cloud Firebase (Auth, Firestore, Cloud Messaging, Remote Config), AWS, Google Cloud / AppEngine Payments & Monetization Stripe, PayPal, Paytm, Google In-App Purchases, Apple In-App Purchases Databases Room Persistence, SQLite, Realm, Core Data Other Git, Material Design, AI chatbot integration, data annotation & labeling, Live Streaming Services Why clients work with me repeatedly: I communicate clearly, flag issues early, and treat your project like it's my own. I don't disappear after delivery — I make sure what I build actually works for your users and your business. Need one codebase that runs beautifully on both Android and iOS? With Compose Multiplatform I can cut your development time and cost significantly — without sacrificing the native experience your users expect. If you're ready to build something great, send me a message and let's talk about your project.