Hire the Best BlackBerry App Development Specialists

I am a full-stack Mobile and Web developer with 5 years of experience. I can build your app from scratch, join your existing team, or help fix and improve your current Web or Mobile project. I have the ability to develop an accurate UI as provided in design by UI/UX designer with stunning animations. I am also capable of building the app back-end with robust technologies including AWS/Firebase, NodeJs/PostgreSQL or PHP/MySQL. I have hands-on experience in Marketplace. Retail, Warehouse and Commercial modern applications development. Mobile Apps Technology Stack: • Dart • Swift • Kotlin • Java • BLoC • MVVM Architecture pattern • Jetpack Compose • Dagger • WebSocket/WebRTC Web Technology Stack: • AWS • Node.js/Express • Firebase • PostgreSQL • PHP • MySQL • Javascript/Bootstrap Core Qualification: • Android application development • iOS application development • Web application development • API Integration • Following Agile methodologies • Writing clean, maintainable code • Unit Testing Tools for development & communication: • Android Studio/Flutter • Google Antigravity • Xcode • Slack • Github/Bitbucket/Gitlab • Microsoft Teams • Git I care about building apps properly. Not just something that works for now, but something stable, clean, and easy to improve later. If you need a reliable Mobile and Web developer who can take responsibility and move your project forward, feel free to count me in.

👨‍👩‍👦‍👦 Kids: 4. 🐕Dogs: 2. 📱 Mobile Apps: 80+. 🏥 I build great healthcare apps. My handwriting is like a real doctor's. ⏰ Deadlines - never missed. Family birthdays... - sorry, Mom. --- I am mobile app developer with 14+ years of mobile app development, 80+ apps shipped, and a Flutter app past 2M+ users. ⭐ Top Rated on Upwork since 2018 · 5.0 on Clutch · 4.93 on GoodFirms If you're starting a Flutter app from scratch, I take it from concept to the App Store. If your iOS or Android app has stalled, I get it shipping again. If a previous mobile app developer missed what you needed, that's where I usually come in. 𝗪𝗵𝗮𝘁 𝘆𝗼𝘂 𝗴𝗲𝘁 ✔️ As a Flutter developer I ship one codebase to iOS and Android at once, up to 40% cheaper than two native builds. ✔️ I am mobile app design and mobile app development specialist. No handoffs, no two contractors blaming each other. ✔️ Healthcare apps that pass HIPAA and GDPR. Logistics apps that keep working when the signal drops. ✔️ Hire the wrong mobile app developer and the scope gaps surface at the first build. I flag them earlier, and clients have brought me in to redo exactly that. ✔️ 80+ apps in, I have already hit the problems your build will run into. One app I built passed 2M+ users. Send me what you're building and I'll reply with a scope estimate and the first technical decision I'd settle. Best, Stan ————— Selected work and skills: HEALTHCARE APP DEVELOPMENT, 25+ projects - I am Healthcare App Developer with 5,000+ secure patient transfers a year across a 25+ vehicle fleet and a 24/7 control room. - I am HIPAA Developer with secure PHI handling for 5,000+ patient records - HL7 FHIR syncing records across 3 hospital systems - GDPR compliance on 100% of builds - Healthcare Apps prompting status updates every 30 minutes across 4 job levels - Healthcare SaaS development, Secure Care UK: replaced a third-party subscriber platform, cutting running costs $3,000+ a month. - I am Full Stack Developer Healthcare, Secure Care UK across web and mobile: 5,000+ transfers coordinated from one system. - I am Flutter developer, Patient Gateway UK medical transport: Firebase sync and real-time driver tracking with dispatch updates under 5 seconds. - Flutter Developer, Rheo health wearable: 5 vital-sign categories streamed over LTE in real time, secure PHI handling tested across iOS, Android, and web. - Mobile App Developer, fertility health app: bug-free rate raised 85% to 96% in a two-week retest, delivered in 3 months against a 4-month estimate. LOGISTICS APP DEVELOPMENT, 20+ projects - I am Logistics App Developer with last-mile delivery app: satisfaction raised 35% to 85%, wait times cut 34% in low-signal areas, 12 partners signed in 3 months. MOBILE APP DEVELOPMENT, 80+ apps - Flutter developer, mobile app development: 30+ Flutter projects, build cycles cut 50% and costs 40% vs native with Flutter development. - Flutter App Developer: 2 app stores from one Flutter codebase, 50,000+ installs in year one. - Mobile App Developer, Quran learning app: 2M+ users, rebuilt in 4 months. - Flutter Developer, train ticketing app: shipped in 6 months against a 7-month deadline, NFC storing 5 tickets offline across 20 screens. - iOS Developer and Swift iOS Developer: native iOS apps shipped since 2012 in Swift, one rebuilt to full feature parity in 8 weeks. - Android App Developer: rebuilt an unstable Android app, crashes cut 90% and rating lifted to 4.7. - Mobile app developer, Android Developer and Mobile Developer: native and cross-platform mobile development across 80+ apps. FULL STACK - I am Full Stack Developer: 150+ products shipped end to end, frontend, backend, and database. - Full Stack Mobile Developer: frontend plus backend on 30+ products, delivered end to end. MOBILE APP DESIGN, 40+ designs - I am Mobile app designer, mobile app design expert: 70+ wireframes and 40+ mobile app designs, engagement up 40%. - Mobile UI UX Design: consistent UI across both platforms on 40+ screens, task completion up 30%. - Mobile App UI UX Design in Figma: Figma App Design and Figma Mobile App Designer work across 35+ flows. REACT NATIVE - As a React Native Developer running React Native Development, I have shipped 10+ React Native apps live on the App Store and Google Play. That work spans React Native Developer Expo, React Native App Developer, and React Native Expert roles, covering React Native Expo, React Native iOS, React Native Firebase, and React Native UI UX builds, and it lifted repeat usage 12-19%. Elsewhere, as an AI App Developer and AI Mobile App Developer, my AI Mobile App Development adds on-device intelligence that cut manual work 60%. As a FlutterFlow developer I turn out prototypes 3x faster in FlutterFlow, and as a Full Stack App Developer I run Python and Wordpress backends alongside React Native and mobile React apps across 30+ products. iOS Development, Android App Development, Swift, Node.js, PHP, JavaScript, Java, Desktop Application, Web Design.

Hello, I am Faiz K, a Senior Mobile App Developer with 10+ years of experience building Android, iOS, cross-platform, and AR mobile applications for startups, agencies, and growing businesses. I have successfully delivered scalable, user-friendly, and high-performance apps across multiple industries, helping clients turn ideas into real, revenue-generating products. I work closely with clients to understand their vision, business goals, and user needs to ensure every app delivers real value and long-term success. 🏆 Top 3% on Upwork | 100% Job Success | 60+ Apps Delivered | 10+ Years Experience | 8000+ Hours I specialize in Android, iOS, Flutter, React Native, ARKit, ARCore, Unity AR, Firebase, APIs, cloud integrations, and scalable app architecture. I focus on building apps with clean UI, smooth performance, secure backend connectivity, and long-term reliability. I also ensure apps are optimized for speed, usability, and scalability so they can grow with your business. My goal is simple: create apps that are intuitive, fast, stable, and ready for real users and business growth. 📱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 ✔ Android app development ✔ iOS app development ✔ Flutter app development ✔ React Native app development ✔ Kotlin and Java ✔ Swift and Objective-C ✔ App redesign and upgrades ✔ Bug fixing and optimization ✔ App Store and Play deployment ✔ API integration ✔ Firebase, AWS, Google Cloud I build apps from scratch, enhance existing applications, add new features, fix issues, and provide full deployment and post-launch support. I also assist with UI/UX improvements, testing, and performance tuning to ensure your app delivers the best user experience. 🕶️ 𝗔𝗥 𝗔𝗽𝗽 & 𝗔𝘂𝗴𝗺𝗲𝗻𝘁𝗲𝗱 𝗥𝗲𝗮𝗹𝗶𝘁𝘆 ✔ AR mobile apps ✔ ARKit and MLKit for iOS ✔ ARCore for Android ✔ Unity AR apps ✔ Marker-based AR ✔ Markerless AR ✔ 3D object placement ✔ Product visualization ✔ Virtual try-on ✔ AR filters ✔ Image recognition ✔ Location-based AR ✔ AR navigation ✔ Interactive 3D experiences ✔ Real estate AR ✔ eCommerce AR ✔ Education AR I create immersive AR apps for product visualization, 3D placement, scanning, and interactive user experiences that enhance engagement and usability. These solutions help businesses stand out by offering innovative and interactive digital experiences. 🧩 𝗧𝘆𝗽𝗲𝘀 𝗢𝗳 𝗔𝗽𝗽𝘀 ✔ On-demand apps ✔ Delivery apps ✔ eCommerce apps ✔ Booking apps ✔ Healthcare apps ✔ Fitness apps ✔ Real estate apps ✔ EdTech apps ✔ Social apps ✔ Marketplace apps ✔ FinTech apps ✔ Food apps ✔ Taxi apps ✔ Event apps ✔ AR apps ✔ Business apps I design apps tailored for customers, vendors, drivers, employees, and administrators with smooth workflows and scalable architecture. Each solution is built with flexibility and future expansion in mind. ⚙️ 𝗕𝗔𝗖𝗞𝗘𝗡𝗗, 𝗔𝗣𝗜 & 𝗖𝗟𝗢𝗨𝗗 ✔ Node.js ✔ Python, FastAPI, Django ✔ REST API, GraphQL ✔ Firebase ✔ MongoDB, MySQL, SQLite ✔ AWS, Google Cloud ✔ Payment integration ✔ Stripe, PayPal ✔ Push notifications ✔ Chat systems ✔ Admin panels ✔ Third-party APIs I ensure seamless integration between mobile apps and backend systems, databases, payment gateways, and external services. I also focus on security, scalability, and efficient data handling. 🔧 𝗞𝗲𝘆 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀 ✔ Login and signup ✔ User profiles ✔ Booking systems ✔ GPS and maps ✔ Chat and notifications ✔ Payments and subscriptions ✔ Wallet systems ✔ Media upload ✔ AR camera features ✔ 3D model integration ✔ Offline storage ✔ Multi-language support ✔ Analytics and tracking 🏆 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 ✔ 10+ years experience ✔ 60+ apps delivered ✔ 8000+ hours ✔ Strong mobile development expertise ✔ Advanced AR experience ✔ Clean and scalable code ✔ Performance-focused development ✔ Clear and consistent communication ✔ Reliable long-term support I build apps with strong architecture, smooth user experience, secure data handling, and reliable performance to ensure long-term success. I am committed to delivering quality work on time while maintaining transparency and professionalism throughout the project. 📩 𝗟𝗲𝘁’𝘀 𝗕𝘂𝗶𝗹𝗱 𝗬𝗼𝘂𝗿 𝗔𝗽𝗽 If you need a mobile app developer for Android, iOS, Flutter, React Native, AR, or backend APIs, I am ready to help. Share your idea or app details, and I will suggest the best approach to bring your vision to life. 𝐊𝐞𝐲 𝐒𝐤𝐢𝐥𝐥𝐬: Mobile App Developer, Android, iOS, Flutter, React Native, Kotlin, Swift, Java, AR Developer, ARKit, ARCore, Unity AR, 3D Apps, Firebase, Node.js, Python, APIs, MongoDB, AWS, Payments, Maps, Deployment.

🫡 Extremely Reliable, Communicative and Fast 🥇 The Top 1% of Talent (Expert Vetted) 💰 60+ apps shipped, generating over 8 figures in revenue. ⚡ AI speed combined with 8 years of production experience to deliver code that ships fast, feels premium, and scales without cracking. (Available for 2 projects in April 2026) 🛠️ Specializing in Mobile App Development | Flutter, Swift, or React | iOS and Android 🇺🇸 Honored as a Top Mobile App Developer for hire in the United States from 2020-2025. 🏆 Award Winning Mobile App Developer: previous app featured on Apple's List of Best Language Learning Apps. 📰 Featured on Business Insider for my innovative contributions to mobile app development on Upwork. I've had the privilege of propelling clients to significant milestones, including achieving $2M in Annual Recurring Revenue (ARR). Some notable successes include: - A restaurant subscription app reaching $100K+ Monthly Recurring Revenue (MRR) - A fitness community app achieving $1.5M+ ARR. ⭐️ Client Testimonials: "Michael is a gem in the world of mobile app development..." "Among the top 3 developers I've worked with over the past three years..." "A quality developer and a quality human being..." Upwork Stats: 🏅 Top 1% of Mobile Developers 🏅 Top 1% of iOS Developers 🏅 Top 5% of Firebase Developers 🏅 Top 5% of Swift Developers 🎓 Proud Michigan State University Graduate with a Bachelor's Degree in Computer Science. With a solid eight-year trajectory as a Mobile App Developer, I've honed my skills across a plethora of projects that span iOS and Android platforms, utilizing Flutter and Swift to create high-impact applications. My forte lies in converting ideas into digital realities that propel businesses forward. From crafting engaging user interfaces to optimizing backend processes, my holistic approach ensures a robust and scalable app solution. I thrive in various development scenarios, whether its working with a team to deliver a project on a tight deadline or building an application from scratch all on my own. My experience extends to working with startups that have secured significant venture capital funding, as well as established enterprises aiming to expand their digital footprint. 🌟 Why Choose Me: Client Satisfaction: My reviews reflect the genuine value I provide. Effective Communication: I prioritize prompt and sincere interactions to ensure project fluidity. Mastery: I strive for flawless, visually appealing apps worthy of portfolio inclusion. 😁 Excited to collaborate! Whether you're a startup aiming to elevate your product or an established enterprise looking to scale, I'm here to help. Let’s kickstart our partnership with a complimentary 30 minute discussion to blueprint your pathway to success. Specialities: Full Stack Development, AI Systems Architect, AI SaaS Developer, SaaS MVP Development, Mobile MVP Development, Cross-Platform Mobile Apps, Mobile App Development, iOS Development, Scalable SaaS Architecture, AI-Powered SaaS, Flutter App Development, React Native App Development, Backend Development, Frontend Development, Mobile App Architecture, Cross Platform App Development, AI Powered Applications, API Integration, API-Driven Mobile Apps, Cloud Architecture, Production-Ready MVP, Secure APIs, OpenAI Integration, AI Workflow Automation, LLM Integration

I have 14 years of experience in Java, Android, iPhone, and Web Development. I have developed over 150 Android and iPhone apps, many of which are available on various app stores, along with their corresponding backends and web applications. I am capable of delivering any type of high-quality application on time. ✅ Top Rated ✅ More than 10600 hours of work ✅ SwiftUI, React Native, Flutter, MAUI ✅ Back-end API development (Node.JS / Flask / Django) ✅ Machine Learning

Profile Achievements:- ✓ 100% Job Success Rate ✓ Top Rated Profile ✓ Over 7 years in Android + App Development ✓ Cross Platform & Native App Development With 7 years of experience in mobile app development, I have gained strong expertise in developing high-performance native applications for iOS (Swift) and Android (Kotlin/Java). I develop scalable, and robust apps that meet businesses needs while ensuring optimal user experience. I've worked with startups and enterprise-grade solutions, delivering robust and future-proof applications. Key Expertise:- ✅ Native iOS Development (Swift, Objective-C) ✅ Native Android Development (Kotlin, Java) ✅ UI/UX Optimization (Custom components, animations, accessibility) ✅ Backend Integration (Firebase, REST APIs, GraphQL, AWS Lambda) ✅ Real-Time Features (WebSockets, push notifications, Firestore) ✅ Payment & E-Commerce Integration (Stripe, PayPal, Apple/Google Pay) ✅ App Security & Data Protection (OAuth, JWT, biometric authentication) ✅ App Performance Optimization (Lazy loading, caching, memory management) Big 2 Projects:- FinTech Banking App: (iOS & Android) - Developed for a leading financial institution, handling transactions for 500K+ users. - Integrated real-time payments, multi-layer authentication, AI-driven financial insights. - Achieved 99.9% uptime and 40% faster transaction processing. Health & Fitness Application: (Swift & Kotlin) - Built an AI-powered fitness tracking app with personalized workout recommendations. - Developed a custom motion tracking algorithm using device sensors (Gyroscope & Accelerometer). - Successfully scaled the app to 250K+ active users, driving engagement with gamification features. Development Approach & Workflow 📌 Agile Development: Sprint-based execution with CI/CD pipelines (Jenkins, GitHub Actions). 📌 UI/UX Design: Prototyping in Figma, Sketch, followed by performance tuning. 📌 API-First Development: Seamless backend connections with REST, GraphQL, Firebase. 📌 Automated Testing & Deployment: Unit/UI testing with XCUITest, Espresso, Firebase Test Lab. 📌 Post-Launch Support: Monitoring, updates, scalability improvements for future growth. Tech Stack & Tools: Technologies: Swift, Kotlin, Java, Firebase, GraphQL, REST APIs, AWS, Google Cloud. Dev Tools: Git, Bitbucket, Docker, Fastlane, Postman. Frameworks: Jetpack Compose, SwiftUI, Alamofire, Retrofit, RoomDB. Platforms: iOS, Android, App Store, Google Play, AWS, Azure. Let's connect for a quick exploratory chat to kickoff with your idea into mobile app! Keywords: Mobile App Developer, Android, iOS, React Native, Flutter, Kotlin, Swift, Dart, Cross-Platform Apps, Native Development, Firebase, Firestore, Realtime DB, Node.js, Express.js, REST API, GraphQL, OAuth, SQLite, MongoDB, Stripe, PayPal, Apple Pay, Google Pay, Git, GitHub, CI/CD, Google Play, App Store, Agile, Scrum, App Optimization, ASO, Crashlytics, BLE, Geolocation, AR, Video Streaming, WebSockets, Social API Integration, Google Cloud, AWS, Jetpack Compose, Hilt, Dagger, Coroutines, Room DB, MVVM, Clean Architecture, Unit Testing, SDK Integration.