🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 🏆 ✅ Mobile App Developer 7+ years of experience ✅ SaaS Mobile App Developer 5+ years ✅ 35 mobile app development jobs completed successfully ✅ Android and iOS Mobile Expert ✅ Built 27+ UX-first Mobile App development jobs for 22 companies ✅ On-Time and Cost-Effective Delivery ✅ Future-Proof Solutions Showing a Minimum 41% ROI ✅ 4354 mobile app development hours on Upwork and still counting ✅ 100% Job Success in mobile app development (Client Satisfaction Ratio) ✅ 98% of Clients Recommended working with me ✅ 80% Long-term Repeat Clients ✅ 7+ years of experience in mobile app development, 6 years experience in iOS mobile app development, 7 years experience in Swift and Kotlin, 4 years experience in Flutter, React Native, 2 years experience in KMM, KMP Full stack mobile app developer and mobile app UI UX designer with 7+ years of experience in Mobile App Development, specializing in iOS, Swift, Android, Kotlin, KMM, Kotlin Mutliplatform / KMP, React Native, and Flutter. I have successfully delivered 120+ mobile applications in different roles as mobile app developer, flutter app developer, flutter full stack developer, flutter flow, mobile app design, mobile ui ux designer, swift ios developer, android developer, kotlin developer, react native developer, mobile game developer achieving a 5-star rating on Upwork and helping clients scale their businesses with high-performance solutions. Apart from mobile app development, I specialize in Mobile App Design for both iOS and Android, as well as Web App Design for SaaS platforms. My expertise extends to Interaction Design, User Flow Design, and creating seamless User Experience (UX Design) and User Interface (UI Design). I follow a Design Thinking approach, ensuring every solution is user-centered and problem-solving. My process includes UI/UX Wireframing, Prototyping, and building Style Guides or UI-kits for consistent branding. I perform Design Audits and Design QA to maintain high standards across all projects. 🛠️ Design Tools: My designs come to life through powerful tools like Figma, Zeplin, and InVision for prototyping and collaboration. I leverage Adobe Illustrator, Adobe Photoshop, and Adobe XD for detailed visual design. For complex wireframes and flow mapping, I turn to Axure, Sketch, and Balsamiq. I also use Miro and Abstract for brainstorming and version control, while project communication and management happen in Slack and Jira. Our Expertise at a Glance • Mobile App Development: Android, iOS, & Cross-Platform App Development using Java, Kotlin, Swift, Objective C, Flutter, and more. • Website and Full Stack Development: Crafting seamless back-end experiences with .Net, Python, Java, Javascript, React.js, Angular.js, Node.js, MERN, MongoDB, PHP, etc. • Logo & UI/UX Design: Bringing your ideas to life with Adobe XD, Photoshop, Sketch, Figma, etc. • End-to-End Solutions: From logo design, UI/UX development, workflow setup, testing to deployment in app stores, we've got it all covered. We do not use v0.dev lovable.app CursorAI, Cursor, Windsurf, Trae, GitHub Copilot, Tabnine, Qodo, Devin AI, and AutoDev for speed up coding, we know other methods to do it efficiently. We offer a comprehensive range of development services across mobile, web, and cloud platforms. Our mobile app development expertise includes building Android and iOS applications using technologies such as Flutter, Swift, Objective-C, React Native, and Xamarin, optimized for both smartphones and tablets with a focus on cross-platform compatibility. In website and full stack development, we work with .NET technologies, including full stack .NET development, .NET Core, and Python with Django. Our team is experienced in developing both backend systems and user-friendly, responsive web interfaces, as well as working with various CMS platforms. Our DevOps and DevSecOps capabilities cover cloud infrastructure and automation, leveraging tools like AWS, Azure, Docker, Kubernetes, GitLab CI, Ansible, and Terraform to build secure and scalable deployment environments. We also build cross-platform and web applications using frameworks like Three.js and design tools such as Webflow, creating visually engaging and functional user experiences across devices. Additionally, we are well-versed in integration and automation tools, including WebSockets, data integration, the ABP Framework, Discord API, and Autotask, allowing us to create seamless connectivity and workflow automation between systems. Talent Good Knowledge, Talented, Experienced, Skilled, Strong Experience, Proven Experience, Agency, Team, Company, Specialist, Proven Track Record, Strong Background, Write Clean Code, Deep Expertise, Bring to Life, Cross-platform, Attention to Detail, Long Term. ⚡️ AVAILABLE FOR NEW PROJECTS ⚠️ Press Invite Button on my page and let's talk.

𝟲+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 👔 | 𝟱𝟬+ 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐰𝐢𝐭𝐡 𝟭𝟬𝟬𝗠+ 𝐝𝐨𝐰𝐧𝐥𝐨𝐚𝐝𝐬 📱 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 🏆 | 𝐆𝐨𝐨𝐠𝐥𝐞 & 𝐀𝐖𝐒 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 🎓 | 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 🥇 🌟 With over 7 billion mobile users globally, apps account for 90% of mobile time spent. The App Store and Play Store combined house over 6 million apps, making high-quality development crucial to stand out. I specialize in creating high-performing, native and cross-platform mobile apps with stunning UI/UX and scalable functionality to help your business bloom in today’s competitive mobile-first world. Having over 5 years of experience as a Mobile App Developer, I’m not just building apps; I’m creating immersive experiences that ignite passion and engagement. Armed with Java and Kotlin, I create native apps whose performance speaks for it. Jetpack Compose is my canvas, where I create complex UIs with functionality to deliver interfaces that pop. Meanwhile, Flutter & Flutter Flow allows me to create stunning cross-platform apps that defy expectations. I thrive on pushing boundaries and turning visionary ideas into reality. 💼 𝐌𝐲 𝐒𝐤𝐢𝐥𝐥𝐬𝐞𝐭: ✔ Java, Kotlin, Jetpack Compose, Flutter, Flutter Flow & React Native for Mobile Apps. ✔ RESTful & GraphQL APIs Integration. ✔ Integrating AI/ML to your apps for providing intelligence to your apps. ✔ Integrating cloud services (e.g. Firebase, Supabase, Azure, AWS) for backend support, real-time databases and authentication ✔ Developing decentralized applications (dApps) and integrating blockchain technologies for secure transactions and data integrity ✔ Connecting and managing IoT devices, enabling seamless communication and data exchange between mobile apps and smart devices. ✔ Advanced techniques for profiling and enhancing app performance, including memory management and reducing load times. ✔ Knowledge of best practices in securing mobile applications against vulnerabilities and data breaches. ✔ Experience with tools like Jenkins, GitHub Actions, and Bitrise to automate testing and deployment processes 𝐿𝑒𝑡’𝑠 𝑐𝑜𝑛𝑛𝑒𝑐𝑡 𝑎𝑛𝑑 𝑒𝑥𝑝𝑙𝑜𝑟𝑒 ℎ𝑜𝑤 𝐼 𝑐𝑎𝑛 𝑏𝑟𝑖𝑛𝑔 𝑦𝑜𝑢𝑟 𝑚𝑜𝑏𝑖𝑙𝑒 𝑎𝑝𝑝 𝑖𝑑𝑒𝑎𝑠 𝑡𝑜 𝑙𝑖𝑓𝑒! 𝑊ℎ𝑒𝑡ℎ𝑒𝑟 𝑦𝑜𝑢'𝑟𝑒 𝑙𝑜𝑜𝑘𝑖𝑛𝑔 𝑡𝑜 𝑏𝑢𝑖𝑙𝑑 𝑎 𝑏𝑟𝑎𝑛𝑑-𝑛𝑒𝑤 𝑎𝑝𝑝, 𝑜𝑝𝑡𝑖𝑚𝑖𝑧𝑒 𝑎𝑛 𝑒𝑥𝑖𝑠𝑡𝑖𝑛𝑔 𝑜𝑛𝑒, 𝑜𝑟 𝑖𝑛𝑡𝑒𝑔𝑟𝑎𝑡𝑒 𝑐𝑢𝑡𝑡𝑖𝑛𝑔-𝑒𝑑𝑔𝑒 𝑡𝑒𝑐ℎ𝑛𝑜𝑙𝑜𝑔𝑖𝑒𝑠, 𝐼'𝑚 ℎ𝑒𝑟𝑒 𝑡𝑜 ℎ𝑒𝑙𝑝. 𝐌𝐲 𝗧𝗮𝗴𝘀 : 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 | 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 | 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐀𝐩𝐩 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐃𝐚𝐫𝐭 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 | 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐁𝐮𝐢𝐥𝐝𝐞𝐫 | 𝐊𝐨𝐭𝐥𝐢𝐧 | 𝐉𝐚𝐯𝐚 | 𝐍𝐚𝐭𝐢𝐯𝐞 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 | 𝐒𝐰𝐢𝐟𝐭 | 𝐎𝐛𝐣𝐞𝐜𝐭𝐢𝐯𝐞 𝐂 | 𝐍𝐚𝐭𝐢𝐯𝐞 𝐈𝐎𝐒 I 𝗜𝗢𝗧 | 𝐅𝐢𝐫𝐞𝐛𝐚𝐬𝐞 | 𝗔𝗪𝗦 | 𝗔𝘇𝘂𝗿𝗲 | 𝗙𝗹𝘂𝘁𝘁𝗲𝗿𝗙𝗹𝗼𝘄 | 𝗶𝗢𝗦 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗜𝗼𝗧 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗕𝗟𝗘 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗕𝗼𝗼𝗸𝗶𝗻𝗴 𝗔𝗽𝗽 | 𝗦𝗼𝗰𝗶𝗮𝗹 𝗔𝗽𝗽 | 𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲 𝗔𝗽𝗽 | 𝗦𝘁𝗿𝗶𝗽𝗲 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 | 𝗙𝗶𝗿𝗲𝗯𝗮𝘀𝗲 | 𝗦𝘂𝗽𝗮𝗯𝗮𝘀𝗲 | 𝗔𝗜 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝘀 | 𝗢𝗽𝗲𝗻𝗔𝗜 | 𝗔𝗪𝗦 | 𝗚𝗼𝗼𝗴𝗹𝗲 𝗖𝗹𝗼𝘂𝗱 | 𝗖𝗵𝗮𝘁𝗕𝗼𝘁

I build complete apps in Kotlin—from Android UIs with Jetpack Compose to backends with Ktor and deployment on Linux VPS. One developer, one language, the entire stack. My focus: Android (Jetpack Compose, MVVM, Room), Kotlin Multiplatform for iOS/Android, backend (Ktor, REST, PostgreSQL), infrastructure (Docker, Nginx, VPS). I take on a limited number of projects to ensure quality. Currently finishing my B.Sc. in Computer Science. You need someone who delivers and keeps things running? Let’s talk

If your app idea is stuck on paper or half-built and broken I can take it live. I'm Ayushi, a Senior Mobile App Developer with 8+ years building iOS, Android, and Flutter apps that actually get shipped to the App Store, on Google Play, and in the hands of real users. My focus is always the same: enterprise-quality code, reliable delivery, and communication that doesn't leave you guessing. 50+ apps delivered across fitness, edtech, SaaS, sports, healthcare, and e-commerce. 🔧 What I build: - iOS apps: Swift, SwiftUI (native, clean, App Store ready) - Android apps: Kotlin, Jetpack Compose - Cross-platform: Flutter/Dart for iOS + Android from one codebase - MVPs for startups that need to move fast and look polished - Full-feature apps with subscriptions, payments, user roles, and API integrations 📱 A few notable apps I’ve built and shipped: 1. Reveal Club: fitness + nutrition app with HealthKit, Stripe subscriptions, calorie tracking, meal plans (iOS & Android, live on both stores) 2. Sports Life Success: 4-role club management app with memberships, game certificates, coach/parent/player flows (iOS & Android, live) 3. TutumNet: mental health self-care app with goal tracking and support network (iOS, live) 4. iPromise: goal accountability app with SMS invites, guest flow and category management (Flutter, Android, live) 5. Thrive: tutor attendance and academic tracking app with time cards and progress reports (iOS, live) 6. Smart Routing: GPS navigation app for courier drivers handling 1000+ waypoints via Mapbox with CarPlay integration ⚙️ Tech stack: - Swift · SwiftUI · Kotlin · Dart · Flutter - Firebase · REST APIs · Alamofire · Retrofit · Stripe · RevenueCat - HealthKit · Mapbox · Push Notifications · Zendesk - MVVM · Clean Architecture · CI/CD · Git · Xcode · Android Studio 🏭 Industries I know well: - Fitness & wellness · Mental health · Sports management · EdTech - SaaS platforms · E-commerce · Logistics · On-demand services ✅ Why clients keep working with me: - I don't just write code I think about the product. I ask the right questions before building. - Clean, maintainable code that your next developer can actually read. - I use AI tools (ChatGPT, Cursor) to work faster but I review, test and own every line. - I work in organised processes Slack/Teams standups, Jira/Asana tracking, regular screen shares. - Realistic timelines. No ghost-acts. Direct communication when blockers come up. If you're a startup that needs a first version shipped fast, a business scaling an existing app, or a solo founder with a great idea send me a message and let's talk about your project. 📩 Message me with your app idea or job description.

𝗣𝗿𝗼𝘃𝗲𝗻 𝘁𝗿𝗮𝗰𝗸 𝗿𝗲𝗰𝗼𝗿𝗱: 25+ production-ready apps built with Flutter & Firebase, published 14+ Native Android Apps, generating over 8 figures in revenue 𝗘𝘅𝗽𝗲𝗿𝘁 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆: CI/CD automation, clean architecture, and reliable app store publishing 𝗘𝘅𝘁𝗿𝗲𝗺𝗲𝗹𝘆 𝗥𝗲𝗹𝗶𝗮𝗯𝗹𝗲, 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝘃𝗲 𝗮𝗻𝗱 𝗙𝗮𝘀𝘁: Regular updates, clear milestones, and proactive collaboration 𝗘𝗻𝗱-𝘁𝗼-𝗲𝗻𝗱 𝘀𝘂𝗽𝗽𝗼𝗿𝘁: From Figma design to post-launch maintenance • Reliable support after launch I've had the privilege of propelling clients to significant milestones, including 2 production mobile apps with real users and measurable business impact. Some notable successes include: - A restaurant management app helping streamline dining operations and enhance customer engagement through a seamless mobile experience - A ride-sharing app supporting driver, customer workflows and transportation operations with a reliable, user-friendly mobile platform I’m a Flutter & Android (Kotlin) developer with 𝟳+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 delivering production-ready mobile apps. AI speed combined to deliver code that ships fast, feels premium, and scales without cracking. (Available for 2 projects in July 2026) • End-to-End Expertise: Flutter (iOS & Android) and native Android (Kotlin) development - from UI/UX design (Figma-to-code) to back-end integration and deployment. • Modern Architecture: Implement MVVM/Clean Architecture and Jetpack Compose for maintainable, scalable code, integrate Firebase, REST/GraphQL APIs, payment gateways (Stripe/PayPal) and 3rd-party SDKs. My core expertise: • Flutter App Development (Android & iOS) • Native Android development using Kotlin • MVP Development for Startups • AI-Powered Mobile Applications • Firebase Integration (Authentication, Firestore, Realtime Database, Cloud Messaging (FCM), Crashlytics, Remote Config, Cloud Storage ) • REST API & Third-Party SDK Integration (GraphQL, Node.js, Firebase Cloud Functions, Supabase, WebSockets, Twilio) • Payment Gateway Integration (Stripe, Razorpay, PayPal, Google Play Billing, Apple In-App Purchase, RevenueCat) • Maps, Geolocation & Real-Time Tracking (Google Maps SDK, geolocation, geofencing, live tracking, route optimization ) • Chat, Notifications & Real-Time Features • Figma to Flutter / Android • Google Play Store & Apple App Store Deployment I'm a mobile app developer who builds full apps from scratch in both Flutter and native Android (Kotlin), extends existing Flutter apps with custom native Kotlin modules when a plugin falls short, and has particular depth in two-sided marketplace apps, platforms connecting two different types of users (clients/professionals, hosts/guests, buyers/sellers) with booking, messaging, and payments built to work cleanly for both sides. Tech Stack: Flutter • Dart • Kotlin • Firebase • Supabase • REST APIs • SQLite • Room Database • Stripe • Google Maps • Push Notifications • Riverpod • BLoC • GetX • Jetpack Compose • Kotlin Coroutines & Flow • Hilt/Dagger • Android SDK • Git • GitHub • Figma Message me "AUDIT" - get a free 30-min technical consultation. During our session, we’ll:
 ✅ Explore your goals, technical requirements, or existing app review feedback ✅ Outline a roadmap with timelines and cost estimates
 ✅ Recommend the best tech stack and development approach 🤝 𝗟𝗘𝗧'𝗦 𝗪𝗢𝗥𝗞 𝗧𝗢𝗚𝗘𝗧𝗛𝗘𝗥

I help teams design and ship mobile applications for Android and iOS. My core background is native Android (Kotlin, Java), and cross-platform (Flutter & React Native). I've delivered 20+ commercial apps across fintech, social, maps, logistics, and entertainment. I cover the full cycle: architecture, feature development, testing, performance optimization, and post-release support. 🎯 What I work on: - New apps from scratch - UI/UX implementation - Architecture improvements - Crash fixes & stability - Release automation - Firebase/Analytics integration - API/backend integration - AI integration 🛠 Architecture: MVVM, MVP, Clean Architecture 🧩 Technologies and Libraries: - Android: Kotlin, Java, Jetpack Compose, Android SDK, Dagger/Hilt, Room, Retrofit, OkHttp, Coroutines, Flow - Flutter: Dart, BLoC, Provider, Riverpod, GetX - React Native: JavaScript, TypeScript, Redux, Expo - Firebase: Crashlytics, Analytics, AdMob, A/B testing, Cloud Messaging - Testing: JUnit, Mockito, Espresso, Robolectric - Git: GitHub/GitLab, Bitbucket, Mercurial 🤖 How I use AI I use AI as a productivity tool to speed up repetitive engineering work, but I never deliver raw AI-generated output. I focus on scalable, maintainable, and high-performance applications, delivering projects that meet both user expectations and business goals. If you are looking for someone who can build Android features or improve app quality - contact me.

✅ TOP RATED PLUS (Top 3% Freelancer) Developer on Upwork, specializing in Mobile (Android native/Flutter). A pioneering and security-oriented developer offering more than 14 years of experience designing, implementing, integrating, testing and supporting impactful applications developed in diverse, collaborative environments for mobile and tablet devices on the mobile platform. WHY CHOOSE ME? ✅ 14+ Years of experience in Mobile Development ✅ 50 Finished Projects on Upwork, 100% Job Success ✅ 99% Clients who would recommend ⚡️ROCKSTAR IN: — Native Android/IOS Development — Hybrid Mobile Development - Flutter/React Native — Rust/NodeJS Backend Development ✅ Career Highlights - Developed numerous intuitive, visually engaging, and high-performance mobile applications that prioritize user experience and functionality. - Recognized for writing clean, efficient, secure, and reusable code, with a strong focus on privacy and data security. - Skilled in object-oriented design, data structures, problem-solving, performance optimization, and advanced debugging techniques. - Deep expertise in handling device compatibility and cross-version behavior across the mobile ecosystem. - Known as a self-driven, organized, and reliable developer who consistently meets deadlines and delivers quality work. - Provided technical leadership and mentorship to junior developers, helping elevate team performance. - Active contributor to the developer community with over 8,200 reputation points on Stack Overflow. 💬REVIEWS FROM CLIENTS: ⭐⭐⭐⭐⭐ "Phuoc Doan Hong is a true expert. His Kotlin knowledge and Android development experience are really valuable. I highly recommend this guy." ⭐⭐⭐⭐⭐ "He was an expert, in every move he made. Knowledgeable, patient and easy to communicate with. You can blindly trust him. Thanks again" ⭐⭐⭐⭐⭐ "Doan is highly skilled, smart, and works hard to find the best solution for complex problems. He has deep understanding of performance considerations in the Android platform. An Android expert. His English is excellent, and communication is great." ⭐⭐⭐⭐⭐ "I can simply say that I am very happy to work with him. He is very responsible, hardworking, and talented developer with great communication skills. He understood all the problems and delivered clear solutions. His skills and his professionalism are very high level. I am sure we will be working on new projects with him. Thanks for this amazing work!" Below you will find client reviews section, it describes the quality of work and value that you can expect from working with me

✅ 100% Job Success | Top Rated on Upwork 📊 49 Jobs | 5,025+ Hours Worked | 5★ Reviews 🏆 Certified by the Government of Mauritania (World Bank Projects) 👨‍💻 10+ Years’ Experience in Native Mobile App Development 🚀 Specialising in Automotive, BLE, IoT, HealthTech, Wearables 🤖 Fun Fact: I use AI tools like ChatGPT & Copilot to speed up development & debugging. 🔧 Core Tech Stack Android (Kotlin/Java): • Jetpack Compose, AndroidX, RxJava, Coroutines • Hilt, Dagger, Room, WorkManager • Material Design, ConstraintLayout, MotionLayout • Testing: Espresso, Robolectric, JUnit iOS (Swift/Obj-C): • SwiftUI, UIKit, Combine, CoreData, AVFoundation • MapKit, Vision, CoreML, SiriKit • Tools: Xcode, Instruments, Fastlane, SwiftLint • Testing: XCTest, XCUITest 🚘 Automotive & Multimedia • Android Auto & Apple CarPlay • MediaBrowserService, ExoPlayer, AVPlayer • Turn-by-turn SDKs: Google Maps, Mapbox, HERE • Voice Assistants: SiriKit, Google Assistant 📶 IoT, BLE & Connectivity • BLE, Classic Bluetooth, CoreBluetooth • Nearby Connections, WiFi Direct • MQTT, WebSockets, IoT Device Sync ☁️ Cloud, APIs & Backend • Firebase (Auth, Firestore, FCM, Remote Config) • Supabase, AWS Amplify, AppSync • REST APIs, GraphQL, Retrofit, Apollo • Local Storage: Room, CoreData, SQLite 💰 Monetization & Notifications • RevenueCat, StoreKit, Google Billing • FCM, APNs, PushKit, Local Notifications 🧱 Architecture & Clean Code • MVVM, Clean Architecture, Repository Pattern • SOLID Principles, Modular Codebases • DI Tools: Hilt, Dagger 🚀 Deployment & CI/CD • Play Console, App Store Connect • Fastlane, Bitrise, Firebase Distribution • GitHub Actions, Code Signing, TestFlight 🧠 Advanced Features • Geolocation, Geofencing, Biometric Auth, Background Services • Deep Linking, App Clips, Widgets, Spotlight, Siri Shortcuts • WatchOS, WearOS, HealthKit, Google Fit • Accessibility, RTL, Multilingual Support 🏅 Certifications Government of Mauritania – World Bank Projects Android Jetpack Masterclass – Udemy (Feb 2025) iOS SwiftUI Mastery – Simplilearn (Feb 2025) Agile Scrum Master – Simplilearn (Feb 2025) Firebase Essentials – Google Developer Training BLE & IoT Mobile Integration – Coursera 🤝 Why Clients Choose Me ✔️ 100% Job Success + Top Rated + Long-Term Clients ✔️ Native-first with Automotive, BLE & Wearable Expertise ✔️ Fast Delivery, Clean Code, Agile Collaboration ✔️ Sharp UI/UX & Robust Architecture for Scaling 📌 Let’s bring your mobile app idea to life — with speed, quality & clarity. #Kotlin #Swift #JetpackCompose #SwiftUI #AndroidAuto #CarPlay #BLE #Firebase #RevenueCat #WearOS #WatchOS #GraphQL #RoomDB #Fastlane #GitHubActions #MobileDev

‼️ 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽 𝗶𝗻 𝟱 𝗱𝗮𝘆𝘀. 𝗗𝗮𝗶𝗹𝘆 𝗽𝗿𝗼𝗴𝗿𝗲𝘀𝘀 𝘃𝗶𝗱𝗲𝗼𝘀. 𝗠𝗼𝗻𝗲𝘆 𝗯𝗮𝗰𝗸 𝗶𝗳 𝗜 𝗺𝗶𝘀𝘀 𝗮 𝗺𝗶𝗹𝗲𝘀𝘁𝗼𝗻𝗲. 𝗞𝗻𝗼𝘄 𝘆𝗼𝘂 𝗵𝗶𝗿𝗲𝗱 𝗿𝗶𝗴𝗵𝘁 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗶𝗻 𝘄𝗲𝗲𝗸 𝗼𝗻𝗲, 𝗻𝗼𝘁 𝗺𝗼𝗻𝘁𝗵 𝘁𝗵𝗿𝗲𝗲. 🏅 𝟭𝟬𝟬+ 𝗮𝗽𝗽𝘀 𝗽𝘂𝗯𝗹𝗶𝘀𝗵𝗲𝗱 to the App Store and Google Play with 𝗺𝗶𝗹𝗹𝗶𝗼𝗻𝘀 𝗼𝗳 𝗱𝗼𝘄𝗻𝗹𝗼𝗮𝗱𝘀 globally. 🏆 Honored as 𝗨𝗽𝘄𝗼𝗿𝗸'𝘀 #𝟭 𝗥𝗮𝗻𝗸𝗲𝗱 𝐊𝐨𝐭𝐥𝐢𝐧 𝐚𝐧𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 for hire on Upwork search (Check first Portfolio item) 🥳 Awarded an 𝐀𝐩𝐩𝐫𝐞𝐜𝐢𝐚𝐭𝐢𝐨𝐧 𝐋𝐞𝐭𝐭𝐞𝐫 by Singapore-based cashback platform Showbox, trusted by over 𝟑 𝐦𝐢𝐥𝐥𝐢𝐨𝐧 𝐮𝐬𝐞𝐫𝐬, in recognition of outstanding contributions. 📞 If you shoot me an invitation or message, I'll send you a personalised Loom video back on how I may be able to help you! 𝗔 𝗹𝗶𝘁𝘁𝗹𝗲 𝗺𝗼𝗿𝗲 𝗮𝗯𝗼𝘂𝘁 𝗺𝗲: I help startups and businesses turn ideas into fast, scalable mobile apps that users love. I build production-ready Android and iOS apps with clean architecture, smooth performance, and long-term scalability, so your app grows with your business. 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗺𝗲: ● Extremely Reliable, Communicative and Fast. ● 10+ years of experience. ● 112 Jobs completed only on Upwork with 5.0★ average. ● 100% Job Success Score with $250k+ earning only on Upwork. ● Real ROI with MVP Shipped in 4 weeks instead of months. 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: AI-powered apps | Kotlin | Java | Dart | Android Native | iOS + Desktop + Web with Kotlin Multiplatform and Flutter | Clean architecture | MVVM/ MVI/ bloc | Room/Drift | Dio/Ktor/Retrofit | Koin/get_it | Repository pattern | Offline-First | Compose Multiplatform | Widgets | JetPack Compose 📞 Invite me to your project or message me, and I’ll audit/review/plan at no cost. You can expect this to be genuinely valuable even if you choose not to work with me.

Greetings! I’m an experienced and top-rated mobile developer from India with over 6 years of experience building high-quality apps for iOS, Android, and cross-platform (Flutter, FlutterFlow). I focus on creating smooth, modern, and scalable apps that users love. My Core Expertise: • SwiftUI, Kotlin, Java, Flutter, FlutterFlow, Jetpack Compose • Firebase (Auth, Firestore, Cloud Functions, Messaging), REST APIs • Payment gateways: Stripe, PayPal, Razorpay, RevenueCat • Local databases: SQLite, Room, Realm • Push notifications, analytics, ad monetization What I Offer: • Full-cycle mobile app development (iOS, Android, Flutter) • Pixel-perfect UI with smooth UX and animations • Secure API and payment integrations • Firebase-powered real-time features • Growth tools and monetization setup Why Work With Me: • Apps with proven results and great user ratings • Clean, maintainable code following best practices • Transparent communication and regular updates • Client-focused approach — I care about your app’s success I’m passionate about turning ideas into polished, production-ready apps. Let’s connect and build something amazing together!