Hire the Best BlackBerry App Development Specialists
in India

🟢 AVAILABLE NOW Hey there! My name is Kousik Das and I'm a professional mobile app developer with over 5 years of experience in building high-quality, cross-platform mobile apps for Android and iOS. I will follow your requirements and definitely offer you the best-designed, neat and excellent work with quality testing. I have solo-developed and published full-stack applications to the App Store, Play Store, and web with 5000+ daily active users. I can own every aspect of the development cycle and would love to bring your application to life! 📌 Expertise 🔹On-Demand Apps (Uber-style taxi, cargo transport) 🔹E-commerce & Lifestyle (shopping, fashion, food delivery, salon booking) 🔹Travel Apps 🔹Education & Learning (tutor–student marketplaces, quizzes, e-learning) 🔹Social Networking (messaging, dating, sharing) 🔹 Media & Streaming (video editing, live streaming, real-time apps) 📌 Technology Stack 🔹 Android development (Kotlin, Java) 🔹 iOS development (Swift/SwiftUI) 🔹 iOS + Android development (Flutter/Dart, React Native) 🔹 Website development (PHP/ReactJS/NextJS) 🔹 Database design(MSSQL Server, MySQL, MongoDB, Postgres) 🔹 API development(Java Spring Boot, Cake PHP, NodeJS) 🔹 Version control (GitHub, BitBucket, SVN) 🔹 Task Manager (Jira, Trello, Basecamp) 📌 Work Ethics 🔹 Correct time management 🔹 Experience in project management 🔹 High Scalability of your idea 🔹 Quality of the final product 🔹 Fulfilment of actual need and maintain long-term client relationship 🔹 Customer time-to-value after delivery 🔹 6 months support after product live Feel free to contact me anytime! Thank you for going through my profile.

Kotlin • Java • Flutter • Android SDK • Jetpack Compose • Android Enterprise • Android Management API • MDM • Kiosk Mode • Device Owner • COSU • Firebase • Retrofit • Room Database • WorkManager • REST APIs • Google Maps • WebSockets Senior Android & Flutter Developer with strong knowledge of Android OS, specializing in Mobile Device Management (MDM), Kiosk Applications, Android Enterprise, and cross-platform mobile app development. I help businesses build secure, scalable, and enterprise-grade Android and Flutter applications for dedicated devices, fleet management, field operations, digital signage, POS systems, and remote device management. Core Expertise ✅ Native Android Development (Kotlin & Java) ✅ Cross-Platform Development (Flutter) ✅ Mobile Device Management (MDM) Solutions ✅ Kiosk Mode Applications (Single-App & Multi-App) ✅ Android Enterprise & Android Management API ✅ Device Owner (DO) & Corporate-Owned Dedicated Devices (COSU) ✅ Zero-Touch Enrollment & QR Provisioning ✅ Android OS, Framework & System-Level Development ✅ Remote Device Monitoring & Management ✅ Device Policy Enforcement & Security Controls ✅ GPS Tracking & Location-Based Applications ✅ Background Services, WorkManager & Broadcast Receivers ✅ Firebase, REST APIs & Real-Time Communication ✅ Android Tablets, Rugged Devices, POS Terminals & Android TV ✅ Performance Optimization & App Store Deployment I have experience building Android and Flutter applications that enable organizations to remotely manage devices, lock devices into kiosk mode, enforce security policies, monitor device health, track assets, automate workflows, and streamline enterprise operations. Whether you need a custom Android application, Flutter mobile app, MDM platform, kiosk solution, Android Enterprise integration, or device management automation, I can deliver secure, reliable, and production-ready solutions. #AndroidDeveloper #FlutterDeveloper #MobileAppDeveloper #AndroidOS #Kotlin #Java #Flutter #Dart #AndroidSDK #JetpackCompose #AndroidAppDevelopment #NativeAndroid #CrossPlatformDevelopment #MDM #MobileDeviceManagement #KioskMode #KioskApp #AndroidEnterprise #AndroidManagementAPI #DeviceOwner #COSU #ZeroTouchEnrollment #EnterpriseMobility #GPSTracking #Firebase #RESTAPI #GoogleMaps #POSSystems #RemoteDeviceManagement #AppDevelopment

𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 & 𝐑𝐞𝐚𝐥 𝐄𝐬𝐭𝐚𝐭𝐞 𝐕𝐀. With 8+ years in Android/iOS development and real estate virtual assistance, I help startups, small businesses, and investors build reliable mobile apps and generate consistent, high-quality leads. I’m Top Rated (top 3%), with 120+ completed contracts. 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 (𝐀𝐧𝐝𝐫𝐨𝐢𝐝 & 𝐢𝐎𝐒): ==================================== - Native apps: Kotlin, Java, Swift - Hybrid apps: Flutter, React Native - Architectures: MVC, MVP, MVVM - Integrations: REST APIs, Google Maps, Facebook, Payment Gateways - Tools: Git, GitHub, Bitbucket - Experience with: Finance, Social, Communication, Matrimonial, Media Editing, Streaming apps What you get: clean architecture, pixel-perfect UI, secure API integrations, and seamless deployment to Google Play & App Store. 𝐑𝐞𝐚𝐥 𝐄𝐬𝐭𝐚𝐭𝐞 𝐕𝐀 & 𝐋𝐞𝐚𝐝 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐨𝐧: ============================= - Buyer/Seller lead generation & motivated seller outreach: - Investor/agent support, property research, rental leads - CRM updates, data management, follow-ups & lead nurturing - Experience working across multiple US states and markets 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞: ================== - Proven Upwork track record with repeat and long-term clients - Clear communication, daily updates, and time-zone flexibility (EST, PST, UK, AUS) - Fast turnaround while maintaining quality and accuracy If you are looking for someone reliable, efficient, and results-driven, let’s talk. I respond quickly and can start with a small milestone, code review, or lead-gen audit.

★ Top-Rated Plus Android & iOS Mobile Developer ★ 100% Job Success ★ 5 Stars Rating ★ 12000+ hours of work history ★ 10+ years working as Android & iOS Developer ★ 10+ years work in the IT industry as a developer ★ Worked with various MNC's/Startup's I specialize in native Android & iPhone programming & development and fastly solve complex tasks in existing code (as say my clients). And I fastly write a new code, without losing quality. My skills include: Native Android, JSON, REST, IOS, Android Studio, XCode, Cocos2d-x, C++ (11 years), C#, SQL, OpenGL, A/B Testing, Performance and Stress Testing, AWS, Firebase and GCP My approach will include the following steps: - Requirement Understanding - Designing - Development - Testing - Deployment - Maintenance (On-demand) Expertise in Type of apps: ★ Beacon/Hardware devices based apps ★ Uber type apps - taxi, cargo transport ★ Shopping mobile apps ★ Travel Mobile App ★ eCommerce Mobile App ★ On-Demand Mobile App (food delivery/home services) ★ Food Delivery Mobile app ★ Salon Appointment Booking Mobile App ★ Mobile apps for business ★ Mobile apps for education sectors, Quiz apps, Tutor-Student marketplace apps I am a responsible person who cares about deadlines and does everything to achieve the best result in the shortest time. Let me help you make your application shine!

✅ Top Rated Freelancer | 💯 100% Job Success | 10+ Years of Experience Are you looking for a reliable, experienced developer who delivers high-quality mobile and web applications on time and within budget? You're in the right place! I’m a full-stack mobile and web app developer with over 10 years of hands-on experience, delivering scalable and user-friendly apps across various platforms and industries. 🔧 My Core Skills: Mobile App Development: ✅ iOS (Swift, Swift UI, Objective-C) ✅ Android (Java, Kotlin) ✅ Cross-platform: Flutter, React Native Web Development: ✅ PHP (Core PHP, Laravel, CodeIgniter) ✅ WordPress Development & Customization ✅ API Integration (REST, Firebase, Payment Gateways) ✅ Angular, HTML5, CSS3, Bootstrap ✅ WordPress (Custom Themes & Plugins) Backend: ✅ Node.js (Express), PHP (Laravel, CodeIgniter) Database: MySQL, Firebase, SQLite Tools: Xcode, Android Studio, VS Code, Git, Figma, Postman 🏆 Why Clients Choose Me: 100% Job Success with Top Rated badge Clear communication and regular progress updates Clean, maintainable, and scalable code Post-launch support and quick bug fixes Long-term client relationships Let’s discuss your project and bring your idea to life! 📩 Feel free to invite me to your job — I'm happy to help.

I'm a mobile app developer building Android (Kotlin), iOS (Swift), and cross-platform (Flutter/React Native) apps - from simple apps built from scratch to complex BLE/IoT integrations. Whether you need a straightforward app shipped fast or a device that talks to hardware in real time, I can handle it end to end. App development - Native Android (Kotlin) and iOS (Swift) - Flutter / React Native cross-platform builds - Firebase & Supabase — auth, database, storage, notifications - REST and real-time API integration, third-party SDKs - Clean, scalable UI and app architecture - Performance optimization, bug fixing, App Store/Google Play deployment and updates - BLE / IoT / OCR specialization - BLE/Bluetooth — real-time device communication for IoT hardware and wearables - OCR & document scanning — structured data capture from images - Barcode systems — tracking, inventory, and data-entry workflows Recent work - Built a real-time BLE command-sync system for a French pet-tech company's smart dog-training device, resolving Bluetooth reliability issues that had stalled their iOS launch - Built a carpool app with live chat, real-time location tracking, and ride matching - Delivered an inspection app with OCR and image upload for structured field data capture - Built a habit-tracking iOS app with CoreData and iCloud sync - Shipped barcode-based inventory and tracking apps for [industry] - Developed WearOS/WatchOS apps connected to smart devices How I work - Clean, maintainable code with regular commits so you can track progress. If something's out of - scope or behind schedule, you'll hear it from me early. Comfortable working inside your existing - GitHub repo and backend, or independently against a clear spec. - Simple app or BLE-connected device — I can take it from spec to shipped.