I’m an Android App Developer with a strong command of Kotlin, Java, and Jetpack Compose, passionate about building high-performance, scalable, and secure mobile applications. With a deep understanding of Android architecture components, I specialize in turning ideas into user-friendly and production-ready apps. --- **Android Development** Kotlin, Java, Jetpack Compose, XML Android SDK & Material Design Scoped Storage & Background Work (WorkManager) --- **API & Database Integration** RESTful APIs using Retrofit JSON, XML parsing Room (SQLite), MySQL Firebase: Realtime Database, Firestore, Storage, Authentication, Cloud Messaging ,push notification --- **Architecture & Dependency Injection** Clean Architecture MVVM, MVI Design Patterns Dagger Hilt, Manual DI Handler Design Pattern --- **Tools & Workflow** GitHub, Version Control (Git) & CI/CD Basics Debugging, Crashlytics, Remote Config --- What I Offer Robust & Maintainable Code: Following modern Android best practices. Firebase Integration: Analytics, push notifications, crash reports, and real-time updates. Google Play Compliance: Fix policy-related issues to meet publishing guidelines. Scalable & User-Friendly UI: With Jetpack Compose & XML layouts. --- Why Work With Me Transparent communication & regular updates Deadline-driven and focused on quality Cost-effective yet exceptionally professional outcomes. Continuously learning to keep up with technological advancements.

Are you looking for a hands-on mobile product partner who can actually ship? I’m a mobile-focused product engineer with 11+ years of experience building, shipping, and scaling Android, iOS, Flutter, and Kotlin Multiplatform apps for startups and product teams worldwide. I don’t just write code—I help founders turn vague ideas into working products, fix failing MVPs, and take apps from zero → store launch → monetization. I’ve built consumer apps, AI-powered tools, privacy-first platforms, and large-scale production systems used globally. If you need someone who can own mobile execution end-to-end—architecture, UI, integrations, performance, and launch—you’re in the right place. What I Do * Build mobile-first MVPs using Flutter or Kotlin Multiplatform * Develop production-grade Android & iOS apps (Jetpack Compose, Swift interop where needed) * Architect shared business logic, offline-first data layers, and scalable app foundations * Integrate AI features directly into mobile apps (OpenAI, Gemini, Firebase ML, on-device ML) * Design monetization flows (subscriptions, IAPs, AdMob, RevenueCat) * Handle Firebase, push notifications, auth, analytics, and CI/CD * Step in to rescue stalled or poorly built apps and bring them to launch What Sets Me Apart ✅ 11+ years building real products—not demos ✅ Founder mindset: I optimize for speed, clarity, and business outcomes ✅ Deep mobile specialization (not a generalist pretending to be mobile) ✅ Proven experience with AI-powered mobile features in live apps ✅ Comfortable working solo or alongside founders, designers, and backend teams ✅ Clear communication, proactive updates, and zero hand-holding required I’ve worked with clients and teams across India, the US, Europe, Australia, and Singapore, and I’m used to async, remote-first collaboration. Selected Work (Real Apps, Live Users) Safe2Marry – Legal & risk-awareness mobile platform * Flutter-based cross-platform app with Firebase + AI integrations * AI-powered legal roadmaps, calculators, and content summarization * Built subscriptions, analytics, and community features from scratch Actionz (The Magic Word) – AI-powered life guidance app * Kotlin Multiplatform with shared UI & business logic * OpenAI-driven insights, notifications, and habit nudges * Designed for fast iteration and experimentation Josh.ai – Privacy-first smart home platform * Senior Android Engineer on a production AI/NLP system * Migrated legacy Java → Kotlin, rewrote core UI and architecture * High-performance real-time systems using WebSockets and Coroutines Scantrust – Anti-counterfeit & secure QR scanning * Kotlin-based Android app used by global brands * Camera, security, and performance-critical features * Reduced technical debt and enabled future ML capabilities (Details available on request or via portfolio links.) Tech Stack (Focused, Not Bloated) Mobile * Flutter, Kotlin Multiplatform (KMP) * Android SDK, Jetpack Compose * iOS integrations where required AI / Intelligence * OpenAI, Gemini * Firebase ML, TensorFlow Lite * On-device & cloud-assisted AI features Backend & Infra (Mobile-Centric) * Firebase (Auth, Firestore, Functions, Analytics) * REST APIs, WebSockets * CI/CD: Codemagic, Fastlane, GitHub Actions Monetization * RevenueCat, In-App Purchases * AdMob, subscription systems How Clients Typically Use Me * “Build my MVP fast, but properly” * “Fix this app and get it ready for launch” * “Add AI features to an existing mobile product” * “Own mobile while we focus on business” If that sounds like what you need, we’ll work well together. Final Note I’m selective about projects. I work best with founders and teams who value clean execution, honest timelines, and long-term thinking over quick hacks. If you’re building something meaningful and want a senior mobile engineer who can think like a product owner—let’s talk.

Mobile App Developer specializing in iOS Development, Android App Development, and Hybrid App Development with React Native. I deliver mobile app development solutions focused on measurable business outcomes, including reducing load times by 40% and supporting applications with 1M+ active users, with a strong emphasis on performance, stability, and monetization across smartphone and tablet devices. Core Mobile App Development Services: • iOS Development (Swift, Objective-C, Apple Xcode) • Android App Development (Kotlin, Android Studio) • React Native and Hybrid App Development (JavaScript, TypeScript) • API Integration and backend coordination • Firebase and OAuth User Authentication • In-App Purchases and subscription flow implementation • Mobile App Testing and QA workflows • CI/CD automation and deployment • Front-End Development with React Selected Results Across iOS and Android Platforms: • Launched enterprise-grade iOS and Android applications serving 1M+ users with zero downtime • Built real-time chat and messaging features that increased user engagement by 20% • Implemented In-App Purchases and subscription flows that generated over $100K in recurring revenue • Hardened Firebase and OAuth User Authentication, eliminating 99% of login-related issues • Reduced release cycles by 50% through CI/CD automation and streamlined deployment processes • Revived an underperforming iPad application, resulting in a 25% increase in downloads • Optimized Apple Xcode build configurations, cutting compile times by 35% and lowering infrastructure costs • Applied AI-driven personalization to increase session retention by 15% • Reduced post-launch defects by 60% through structured Mobile App Testing workflows • Improved activation and long-term retention through optimized User Profile Creation flows Tech Stack: • React, React Native, Swift, Kotlin, Objective-C, JavaScript, TypeScript, Apple Xcode, Android Studio, Firebase, OAuth, REST APIs If you're looking for a Mobile App Developer who can translate product goals into a fast, reliable, and scalable mobile application across iOS and Android, I'm ready to align on your roadmap and execution strategy.

Hi. I'm a developer with vast experience in C#, C++ and JS, HTML, CSS. Also I have experience with Python, Kotlin, Java and React.js. I did some Android Apps and web Apps to. I'm constantly deepening my knowledge of the latest technologies. Currently studying computer science at UBA. (Universidad de Buenos Aires). As a computer science student, I love exploring the intersection of technology and creativity.

Hello! 👋🏼 I'm a Mobile App Developer with over 8 years of experience and a relentless drive for excellence. I specialize in creating immersive, user-centric mobile experiences that elevate brands and deliver tangible results. I am an expert in iOS SDK, SWIFT, Objective-C, Java, Kotlin, Android SDK, Android Studio, and many more. I have developed more than 25 apps so far. I follow AGILE and SCRUM as App Development strategies. I am adept at using various project management tools like Asana, Basecamp, and Trello. I also love debugging and resolving errors /issues in any App. Here is a list of domains on which I have worked: ---------------------------------------------------------- 1) E-commerce application 2) E-learning development 3) On-demand services 4) Food delivery application 5) Event-based application 6) Subscription-based application 7) Social media applications 8) Logistic applications 9) Chatbot application I'm eager to discuss your project and transform your ideas into impactful, professional mobile experiences. Schedule a call today, and let's bring your vision to life. 📅📞 Thanks, Baati Mittal

From idea to Play Store/App Store, I build high-performance mobile applications using both native Android (Kotlin & Jetpack Compose) and React Native, depending on your product needs. ✅ Build production-ready native Android apps (Kotlin & Jetpack Compose) from scratch — optimized for performance, UX, and scalability. ✅ Develop React Native apps for cross-platform iOS + Android solutions with a single codebase. ✅ Improve, extend, or fix existing Android (Kotlin/Java) and React Native apps with clean, maintainable code. ✅ Integrate AI features like chatbots, LLM assistants, smart automation, and image/text processing into mobile apps. ✅ Modernize legacy Android apps (Java/XML) into modern Kotlin + Jetpack Compose architecture. If any of that sounds like what you need, message me — I'm here to help. 𝗪𝗵𝗼 𝗜 𝗮𝗺 I'm Ahsan, a Senior Mobile App Developer with 8 years of experience specializing in native Android (Kotlin & Jetpack Compose), cross-platform React Native (Expo), and integrating AI features into mobile apps. 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 • 𝟱.𝟬★ (𝟰𝟲 𝗿𝗲𝘃𝗶𝗲𝘄𝘀) • 𝟵𝟬+ 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 • 𝟭,𝟭𝟱𝟬+ 𝗵𝗼𝘂𝗿𝘀 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 I've delivered everything from language-learning platforms and sports apps to AI-powered chat applications, always built on clean, scalable architecture that's easy to maintain and grow. 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝘁𝗵 ✅ Mobile App Development - Android (Kotlin, Java, Compose), iOS, React Native (Expo) - Pixel-perfect UI implementation with smooth performance - Custom animations, transitions, and polished user experience - Deep debugging, performance tuning, and stability improvements ✅ Backend & Infrastructure - Firebase, Supabase, PostgreSQL, MySQL - AWS & Google Cloud (GCP) - Scalable backend architecture and API design - REST APIs (Node.js, Python, Django, PHP) ✅ Monetization & Payments - Monetization with ad networks like AdMob, Unity, FAN, AppLovin - In-App Purchases & Subscription Systems - Integration with RevenueCat, Superwall, Adapty - Stripe payment integrations (one-time & recurring) - Paywall optimization, pricing strategy & lifecycle handling ✅ Analytics & Growth - Mixpanel, Firebase Analytics, AppsFlyer, Branch - Funnel tracking, conversion optimization & retention strategy - A/B testing and data-driven product decisions ✅ AI & Advanced Features - AI integrations, chatbots & LLM-powered experiences - Voice-based features & real-time interactions - Integration with Gemini APIs & OpenAI APIs - ML-based personalization & automation ✅ Deployment & Scaling - App Store & Play Store publishing (compliance-ready) - CI/CD pipelines and automated deployments - Performance optimization & scalability planning - Long-term maintenance, updates & feature scaling 𝗧𝘆𝗽𝗲𝘀 𝗼𝗳 𝗮𝗽𝗽𝘀 𝗜 𝗯𝘂𝗶𝗹𝗱 - Fintech & Finance - E-Commerce - Education & E-Learning - AI Chat & LLM-powered apps - Sports - Chat & Messaging - Productivity & Utility apps — and more. 𝗪𝗵𝗮𝘁 𝘆𝗼𝘂 𝗴𝗲𝘁 𝘄𝗼𝗿𝗸𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗺𝗲 - Clean, modular, testable code that stays easy to expand - Clear communication with regular progress updates - Reliable delivery and honest timelines - End-to-end support from idea to launch — and beyond My expertise includes Kotlin, Java, React Native, Swift, SwiftUI, and MVP Development, building secure, scalable, and high-performance mobile applications with clean UI/UX and robust architecture. I provide end-to-end Mobile App Development services, including Firebase Integration, REST API Integration, User Authentication, Push Notifications, In-App Purchases, Payment Gateway Integration, Stripe Integration, Google Maps API Integration, Real-Time Chat, App Deployment, Mobile App Performance Optimization, and long-term maintenance to deliver production-ready Android, iPhone, and iPad applications. Warm regards, Muhammad Ahsan -------------------------------------------------- Senior Android App Developer, Android App Development, Kotlin Developer, Java, Jetpack Compose, React Native Developer, Cross-Platform App Development, Mobile App Development, Mobile App Developer, iOS App Development, MVVM, Clean Architecture, REST API Integration, Retrofit, Firebase, Firestore, Room Database, Push Notifications, FCM, User Authentication, Google Play Deployment, App Store Deployment, In-App Purchases, Payment Gateway Integration, Stripe, PayPal, Google Pay, Google Maps API, Real-Time Chat, Third-Party SDK Integration, AI Chat App, ChatGPT API Integration, Fintech App, Payment App, E-Commerce App, Education App, Sports App, Chat App, Productivity App

Senior Android Developer with 8+ years of experience building high-traffic, production-grade mobile apps used by global users. I’ve developed and scaled Android applications for International QSR brands (food ordering, payments, loyalty systems) with a strong focus on performance, security, and clean architecture. 🔹 Expertise: • Kotlin, Jetpack Compose, MVVM, Clean Architecture • Payment integrations (Razorpay, PayPal, Braintree, etc.) • Firebase, REST APIs, scalable backend integrations • App performance optimization & crash fixing 🔹 What I deliver: • Fast, maintainable, production-ready apps • Secure applications (SSL pinning, root detection, obfuscation) • Smooth UI/UX with modern Android practices If you need an experienced developer who can build, fix, or scale your Android app efficiently — I can help.

I’m a Senior Mobile App Developer with 5+ years of experience building and shipping iOS and Android applications using React Native, Swift, Kotlin, and Capacitor. I use AI-assisted development tools to speed up delivery, reduce bugs, and improve code quality without sacrificing clean architecture or long-term maintainability. 🔰 Mobile Development Expertise - Cross-Platform Mobile Development - React Native (Expo & CLI) - Capacitor (Web to iOS & Android apps) - JavaScript & TypeScript - Native module integration - Native Mobile Development - Swift (iOS – UIKit, SwiftUI) - Kotlin (Android – Jetpack, Material UI) - App Store & Play Store publishing - Performance optimisation & memory management 🔰 AI-Assisted Development I leverage modern AI developer tools to move faster and deliver higher-quality mobile apps: - GitHub Copilot for faster and cleaner React Native, Swift, and Kotlin code - Claude & ChatGPT for architecture brainstorming and edge-case analysis - AI-powered PR reviews (CodeRabbit) for automated code quality checks - AI-assisted testing, refactoring, and documentation This means faster iterations, fewer regressions, and more predictable delivery for your project. 🔰 Backend & App Integrations - REST APIs & GraphQL - Firebase (Auth, Firestore, Push Notifications) - Payments, maps, camera, deep linking - Third-party SDK and API integrations 🔰 What I Can Help You Build - React Native apps for iOS & Android - Native Swift iOS applications - Native Kotlin Android applications - Web apps converted to mobile using Capacitor - Startup MVPs with fast turnaround - Bug fixes, performance improvements, and feature upgrades - App Store & Play Store submission support 🔰 Why Clients Choose Me - 6+ years of mobile app development experience - Strong focus on React Native, Swift, Kotlin, and Capacitor - AI-assisted workflows for faster and more reliable delivery - Clean, scalable, and maintainable codebases - Clear communication and agency-level professionalism I don’t just deliver features, I help you ship better mobile apps, faster. 💬 Let’s Build Something Solid If you need a mobile app developer who understands modern AI-assisted development and can deliver high-quality React Native, Swift, Kotlin, or Capacitor apps, let’s talk.

I'm a senior iOS & Android developer with a Master Degree in Computer Science. I have 11 years of experience for designing and developing efficient, high-performance, user-friendly mobile applications. I have extensive experience working with a variety of different industries and businesses. I was ranked No.1 in "Apple cocoa programming test" in Upwork among 1200 test takers. I have developed over 80 apps in 10 years. The most popular application I've created is Wysa, which was downloaded more than 1 million times from ios App Store Store and Google Play, with average rating 4.7 , based on more than 24.000 reviews. Development Specialities & Experience: • iOS SDK (3.x-13.x), Swift/Objective-C, Cocoa Touch, CoreAnimation, CoreData, CoreLocation, CoreImage, Audio Framework; • watchOS (1.x-6.x), tvOS SDK (9.x-13.x) • Backend (Vapor 3.x) • Google Map Service, SLC, OpenStreetMap SDK, Yandex Map SDK; • Realm, Parse, BaasBox, Deployd, DreamFactory, REST, Socket, SQLite, JSON, XML, • Social networks API: Facebook, Twitter, LinkedIn, Instagram, Google+, Tumblr, Foursquare, Flickr, Weibo, Wechat; • CocoaPods, Carthage, SPM; • MagicalRecord, Alomofire, AFNetworking, ReactiveCocoa, RxSwift, Moya/RxMoya, ObjectMapper, SwiftyJSON; • Unit test: Quick, Nimble; • Flurry, TestFlight, Fabric/Crashlytics, iAd, Analytics, Admob, Push Notification, In-App Purchase;

8 plus Years of experience in android development worked 70+ fully functional apps I am a professional mobile developer specializing in Android App Development. I have a bachelor's degree in Software Engineering. Highlights worked 70+ fully functional applications for Android devices with more than 1M+ downloads. Known for writing efficient, maintainable, and reusable code. Proficient in design, data structures, problem-solving, and debugging. Expert in the interaction between various devices and versions of Android. BS Software Engineering degree Currently, I have these applications on my personal android developer account: • Muslim Matrimonials app (Firebase backend) • Audiobooks free download (API call) • Ok Ameer Urdu assistant (Firebase backend) • Copy hashtags for Instagram (web scraping and API call) • Video touch lock for youtube - locki touch lock(100,000+ downloads with 4.1 ratings ) • Animated gif live wallpaper - Lite(700,000+ downloads with 4.0+ ratings) • Snap map fake location spoofer(100,000+ downloads with 4.1 ratings) • Champion trophy live score • Latest Urdu news updates • Jang epaper QR Code Reader • Pakistani Urdu news Professional Technical Skills: Deep understanding of Android SDK Android Studio MVVP(android new ViewModel lib) JSON/Volley Firebase Libraries integration like Facebook, YouTube, Exo player,Rxjava Google play services e.g. Google map Android Annotation. Material Design Data Binding RX android Kotlin Programming Java Programming Web scrapping Design patterns Github Tensorflow Proguard Reverse engineering SQL lite with ROOM lib Constraint layout Non-Technical Skills Passionate I can very quickly learn to new technologies like Kotlin, android new architecture components, and so on Collaboration and communication Writing Bonus! A Good Idea Youtuber Understanding of Google plays policies. I am very active on StackOverflow and Github. Looking forward to working with you. Let's build the strong and trusted relationship