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Mohamed A.
$20/hr
100% Job Success
$20K+ earned
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I’m a Flutter Team Lead and Senior Node.js Backend Developer (NestJS) with a strong track record of turning ideas into scalable, real-world products. Before diving into technical details, here’s how I can help you: ✅ You’re in the right place if: 1. You have a product idea (mobile or web) I’ve built 20+ applications for startups and businesses across the Middle East & the US — from concept → design → development → launch → scaling with real users. 2. You need expert guidance (Consultation) Not sure where to start? I’ll help you: Choose the right tech stack Plan your system architecture Avoid costly mistakes early Define a clear development roadmap 3. You need a Technical Lead / Project Manager I can lead your team and ensure: Clean, scalable code Efficient workflows On-time delivery Clear communication 💡 What I bring to the table: 📱 Cross-platform mobile apps using Flutter (iOS & Android) ⚙️ Robust backend systems with Node.js & NestJS 🏗️ Scalable architecture & API design 🔐 Authentication, payments, real-time systems ☁️ Cloud integration (AWS, Firebase, etc.) 👨‍💻 Agile team leadership & project management 🎯 Why clients choose me: Proven experience delivering production-ready apps Strong focus on performance, scalability, and UX Clear communication & business-oriented thinking Ability to handle projects end-to-end
Mohamed A. has worked .
Seif Eddine S.
$60/hr
100% Job Success
$20K+ earned
Available now
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With 5+ years of full-stack experience and 20+ shipped products, I specialize in building AI-powered SaaS applications from zero to launch. Whether you're starting with a rough idea or need an experienced hand to take a prototype to production, I own the entire build. What I build? -LLM-powered SaaS products, Custom AI applications built on OpenAI, Claude, or Gemini, with streaming, memory, and tool use. -AI agents & multi-agent workflows, Autonomous systems that browse, reason, retrieve, and take action using LangChain, LlamaIndex, or raw APIs. -RAG & knowledge systems, Document Q&A, semantic search, and internal knowledge bases powered by vector databases. -AI-enhanced backends, Real-time streaming APIs, webhook pipelines, and scalable infrastructure that won't buckle under load. -High-converting landing pages, Fast, pixel-perfect pages built with Next.js, optimized for Core Web Vitals, SEO, and conversion. Ideal for SaaS launches, product waitlists, and marketing campaigns. -Full-stack web apps & MVPs, Classic products built fast, clean, and ready to grow. Tech stack? -AI / LLM: OpenAI API, Anthropic Claude, LangChain, LlamaIndex, Pinecone, pgvector, Gemini. -Landing pages & frontend: Next.js, Framer Motion, Wix, Wordpress, Tailwind CSS, Core Web Vitals, React, Angular. -Backend: NestJS, Node.js, Express. -Database & cloud: PostgreSQL, MongoDB, Supabase, Firebase, AWS, Vercel, Shopify.
Khawar H.
$20/hr
100% Job Success
$600K+ earned
Available now
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I build scalable Android, iOS apps and fast MVPs that get real results (1M+ downloads). Senior Flutter Developer with 10+ years total experience & $600k+ earned on Upwork. ✅ Top Rated Plus on Upwork ✅ $600K+ earned | 159 jobs | 2500+ hours ✅ 100% Job Success Score ✅ Free 30-minute strategy consultation As a Senior Flutter Developer and Flutter Engineer, I create scalable, high-performance Flutter apps through expert Flutter development that delivers real user growth and business value. I also leverage FlutterFlow to accelerate development when speed is critical, and offer React Native as a strong secondary option for teams already invested in that ecosystem. I help startups and established businesses build production-ready mobile apps, fast MVPs, and feature-rich solutions with clean code, strong architecture, and excellent maintainability. 🚀 𝗣𝗿𝗼𝘃𝗲𝗻 𝗔𝗽𝗽 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 - AWCC Asan – Cross-platform app with 1M+ downloads - Glossary Planner – Shopping & productivity app with 100K+ downloads - Temple Bliss – Lifestyle app with 20K+ downloads - Hitchhyke – Recently launched ride-sharing & ride hailing mobility platform (From MVP to scalable product) I focus on apps that users love and adopt long-term. 💡 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 - Cross-platform Flutter app development and Flutter application developer services (React Native when required) - Rapid MVPs and full-cycle development - AI integrations including ChatGPT integration and AI-powered chatbots - In-App Purchase (IAP) implementation and Reward & discounts systems - Firebase, Supabase for scalable backend - UX/UI Design focused on user retention - Thorough Testing and QA - App Store & Google Play deployment - Payments, Maps, Real-time features - REST/GraphQL APIs, Node.js backend support 🏭 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 - Ride-sharing, ride hailing & carpooling platforms (Uber-like & on-demand) - Food delivery and ordering apps - EdTech / Educational online tuition & tutorial apps / eLearning - Coaching platform development - Sports & fitness apps - E-commerce & marketplaces - Health & Fitness, HealthTech & Medical apps - Veterinary App development - Social Networking apps - Travel and tour apps - Music, podcast & video streaming apps - Hotel, restaurant, flight ticket & event booking apps - Weather applications - Loan app & Fintech solutions - HR & Media platforms 🏆 𝗥𝗲𝗰𝗼𝗴𝗻𝗶𝘁𝗶𝗼𝗻 & 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 - Prize Winner – FYP Contest - Top Developer on Clutch (2022) - 10+ years experience delivering mobile products globally ⭐ 𝗪𝗵𝗮𝘁 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗦𝗮𝘆 ⭐⭐⭐⭐⭐ "After wasting time and money with other developers, we finally found a professional team. We're already building our third app together." 🤝 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 - Agile methodology with transparent sprints - NDA signed when required - Business-oriented approach with clear communication - Long-term support post-launch Message me today to get a FREE 30-minute strategy session. Let's discuss your vision and map out the fastest path to launch a successful, scalable Flutter app that performs on App Store and Google Play. Highlighted Skills: Mobile App Development | Mobile App Developer | Mobile Application Developer | iOS App Developer | iOS Developer | Flutter Developer | Flutter App Developer | Flutter Mobile App Developer | Flutter Application Developer | Flutter Engineer | Flutter App Development | Flutter Development | Flutter Mobile App Firebase | Flutter Mobile App Dart | Flutter Laravel | Mobile Engineer | Full Stack Mobile App Developer | AI Mobile App Developer | AI Mobile App | AI ChatGPT Integration | In-App Purchase | React Native | React Native Mobile App Development | Ride-Sharing App | Ride Hailing App | Carpooling App | Food Delivery App | Reward and Discounts | E-commerce App | Sports App | Coaching Platform | Veterinary App | Health & Fitness App | Medical App | HealthTech | Social Networking App | Weather Application | Loan App | Travel and Tour App | Music Podcast & Video Streaming App | Hotel Restaurant Flight Ticket Event Booking App | EdTech | Educational Tutorial App | Mobile App Builder | Mobile App Development Consultation | Android Mobile App Developer | Hybrid Mobile App
TechSwivel - Software Development Agency
Associated with
TechSwivel - Software Development Agency
$600K+
earned
Irina B.
$45/hr
100% Job Success
$300K+ earned
Offers consultations
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I help healthcare companies and digital health teams build mobile apps faster, securely, and cost-efficiently, especially for connected devices, BLE integrations, and regulated environments. Instead of managing separate codebases, I deliver a single, scalable cross-platform architecture that supports medical-grade mobile applications, reduces development time by 40–60%, and maintains native performance. My focus goes beyond standard mobile development — I specialize in healthcare ecosystems, including: • Connected medical devices & wearables (BLE, IoT) • Real-time and near real-time health data processing • Apple Health / Google Fit integrations • HIPAA-aligned architectures & secure data handling • Remote patient monitoring & digital therapeutics apps Whether you're building an MVP or scaling an existing product, I help you choose the right architecture, avoid costly mistakes, and accelerate time to market. 𝙁𝙖𝙘𝙩𝙨 𝙖𝙗𝙤𝙪𝙩 𝙢𝙚 🏅 Built 100+ mobile applications across Flutter, iOS and Android 🚀 15+ years in mobile development including Flutter mobile development 🏆 Founded a technology company acquired by Microsoft 🌐 Developed developer tools acquired by AWS 🎯 Built products across Healthcare, IoT, Travel, Ecommerce and SaaS 💰 Helped startups launch profitable mobile products for iOS and Android 🔍 𝙃𝙤𝙬 𝙄 𝙃𝙚𝙡𝙥 𝙁𝙤𝙪𝙣𝙙𝙚𝙧𝙨 Whether you're building a startup MVP, SaaS platform, marketplace app or scaling an existing mobile development product for iOS and Android, I deliver production-ready Flutter mobile apps using modern mobile development architecture. 𝙈𝙮 𝙬𝙤𝙧𝙠𝙛𝙡𝙤𝙬 𝙛𝙤𝙘𝙪𝙨𝙚𝙨 𝙤𝙣: ✔ Fast MVP mobile development for startups ✔ Clean and scalable Flutter mobile development architecture ✔ Stable Flutter builds for iOS and Android ✔ High-performance UI and animations for Flutter mobile apps ✔ Long-term scalability in mobile development This approach helps companies reduce mobile development costs and launch faster across iOS and Android markets. 𝙎𝙝𝙤𝙧𝙩 𝙥𝙞𝙩𝙘𝙝 I'm a Senior Flutter Developer / iOS & Android Mobile App Developer with 15+ years of experience in mobile development. I design and scale mobile applications for iOS and Android using Flutter mobile development, Dart, Swift, Kotlin, Android development and iOS development combined with modern mobile architecture. Whether you need a Flutter developer, cross-platform mobile developer, startup MVP engineer, or mobile development expert for iOS and Android, I’ve got you covered. 𝙁𝙪𝙡𝙡 𝙡𝙞𝙨𝙩 𝙤𝙛 𝙢𝙮 𝙨𝙠𝙞𝙡𝙡𝙨 📱 Mobile Development: Flutter, Dart, Swift, SwiftUI, Objective-C, Kotlin, Java, Android, iOS 📲 Mobile Architecture: Flutter architecture, BLoC, Provider, Riverpod, Clean Architecture, MVVM 🖥 Web: TypeScript, JavaScript, React.js, Next.js 🔗 Backend & APIs: REST APIs, Firebase, GraphQL, WebSockets 🗄 Databases: SQLite, Firestore, MySQL, PostgreSQL ⚙ Tools: Git, CI/CD, Fastlane, TestFlight, Firebase With over a decade in mobile development, I also help with mobile product strategy, Flutter architecture consulting, AI integrations, backend infrastructure and full-stack development for mobile products. 𝙄𝙛 𝙮𝙤𝙪'𝙙 𝙡𝙞𝙠𝙚, 𝙛𝙚𝙚𝙡 𝙛𝙧𝙚𝙚 𝙩𝙤 𝙘𝙡𝙞𝙘𝙠 𝙩𝙝𝙚 𝙜𝙧𝙚𝙚𝙣 "𝙎𝙚𝙣𝙙 𝙖 𝙢𝙚𝙨𝙨𝙖𝙜𝙚" 𝙗𝙪𝙩𝙩𝙤𝙣 𝙖𝙣𝙙 𝙩𝙚𝙡𝙡 𝙢𝙚 𝙢𝙤𝙧𝙚 𝙖𝙗𝙤𝙪𝙩 𝙮𝙤𝙪𝙧 𝙢𝙤𝙗𝙞𝙡𝙚 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩🚀 Over the years I’ve delivered Flutter mobile development solutions for iOS and Android startups, SaaS platforms and enterprise mobile applications, helping companies scale mobile development products across Flutter, iOS and Android environments. Flutter developer focused on Flutter mobile development for iOS and Android applications. Experienced in building scalable Flutter mobile apps for iOS and Android using modern mobile development architecture. I design and deliver Flutter mobile development solutions for iOS and Android startups, SaaS products and enterprise platforms. My work combines Flutter mobile development, iOS development and Android development to deliver stable mobile applications with high performance across Flutter, iOS and Android. 7/04
ABCloudz
Associated with
ABCloudz
$600K+
earned
Daxesh V.
$19/hr
100% Job Success
$300K+ earned
Available now
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🏆 𝐓𝐨𝐩 𝟏% 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐢𝐎𝐒 (𝐒𝐰𝐢𝐟𝐭/𝐒𝐰𝐢𝐟𝐭𝐔𝐈) & 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐄𝐱𝐩𝐞𝐫𝐭 | 𝐇𝐢𝐠𝐡 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 MVP & 𝐏𝐢𝐱𝐞𝐥 𝐏𝐞𝐫𝐟𝐞𝐜𝐭 UI | 𝐋𝐨𝐧𝐠 𝐓𝐞𝐫𝐦 Support | Worked with | 𝐂𝐡𝐞𝐜𝐤𝐨𝐮𝐭 𝐩𝐨𝐫𝐭𝐟𝐨𝐥𝐢𝐨 With 50,000+ hours delivered on Upwork, a 100% Job Success Score, and Top Rated Plus status, AppMakers has become a trusted mobile app development partner for startups, scale-ups, and enterprise companies worldwide. Our team has contributed to products used by millions of users, including Hims & Hers 🇺🇸, Insight Timer 🇦🇺, Cal AI 🇺🇸, TejiMandi 🇮🇳, and 3Asafeer Education 🇦🇪. ⭐️ 𝐖𝐡𝐚𝐭 𝐰𝐞 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐰𝐢𝐭𝐡 ✅ Mobile Development - iOS (Swift, SwiftUI), Android, Flutter, 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 - 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 🚀 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗜𝗻 🌟 AI-Powered Mobile Apps (Chat, Automation, LLM APIs) 🌟 Health, Fitness & Wellness Apps 🌟 Telehealth & Remote Care Apps 🌟 Mental Health, Meditation & Self-Care Apps 🌟 Real-Time Video & Live Streaming Platforms 🌟Real Estate & Property Management Apps 🌟 Video Sharing & Creator Economy Apps 🌟 E-Learning & EdTech Platforms 🌟 E-Commerce & Marketplace Apps 🌟 On-Demand Service Apps (Taxi, Food, Delivery, Booking) 🌟 Chat, Messaging & Social Networking Apps 🌟 SaaS & Subscription-Based Mobile Platforms 🌟 Fintech, Payments & Personal Finance Apps 🌟 Coaching, Consulting & Personal Brand Apps 🌟 IoT & BLE-Enabled Smart Device Applications ⚡ 𝗪𝗢𝗥𝗞𝗜𝗡𝗚 𝗔𝗣𝗣𝗥𝗢𝗔𝗖𝗛 • Strategy-first approach with clear product direction • Clean, maintainable architecture designed to scale • Honest timelines and realistic expectations • Consistent updates with zero communication gaps • Long-term partnership mindset, not one-time delivery • Limited client deal to maintain quality and attention 🎁 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧 - A strategic technical partner, not just a developer - Honest feedback (even if it saves you money) 📩 𝗟𝗘𝗧'𝗦 𝗧𝗔𝗟𝗞 If you're serious about building something that works for long term, execute by right team - hit "Invite Now." Let's talk. ----------------- AI Development, AI App Development, AI-Powered Mobile Apps, Custom AI Solutions, AI Agents Development, AI Integrations, AI Chatbot Development, Mobile App Development, Mobile App Developer, iOS App Development, iOS App Developer, Android App Development, Android App Developer, Flutter App Development, Flutter App Developer, React Native App Development, Cross-Platform App Development, Hybrid App Development, Custom Mobile App Development, Application Development, Mobile Apps, App Development, MVP Development, Full Stack Developer, Full Stack Development, Web Development, Web Developer, Full Stack Web Development, MERN Stack Developer, Node. js Development, SaaS Product Development, Custom Software Development, E-commerce Development 👉 Click “Invite to Job” or “Message”
Daxesh V. has worked .
AppMakers | 200+ Global Clients | iOS, Android & AI App Specialists | Experts in Building Top-Viral Apps | Trusted by Founders Worldwide
Associated with
AppMakers | 200+ Global Clients | iOS, Android & AI App Specialists | Experts in Building Top-Viral Apps | Trusted by Founders Worldwide
Rana F.
$15/hr
100% Job Success
$2K+ earned
Available now
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As a Top Rated AI Mobile App Developer, I build intelligent mobile applications that automate workflows, increase engagement, and scale for real-world production. The applications I've delivered have reached 20K+ downloads, served 10K+ users, and handled 5K+ daily AI interactions. Launched 𝟐𝟎+ 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬 on iOS and Android. I don’t just build apps, I build intelligent systems that solve real problems and improve user engagement. Delivered apps with 𝟐𝟎𝐊+ downloads and strong user engagement. 𝐇𝐨𝐰 𝐈 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮: You do not just need a mobile app. You need one that performs under real users, scales with growth, and delivers measurable value. I build mobile applications designed to: • Build AI-driven user experiences (chatbots, assistants, automation) • Handle 𝟏𝟎𝐊+ users without crashes or performance issues • Scale your product as your user base grows • Maintain clean, structured, and production-ready code • Improve engagement and retention, not just add features Whether you are launching an MVP, building an AI product, or improving an existing app, I focus on long term reliability and performance. 𝐂𝐨𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐚𝐧𝐝 𝐒𝐤𝐢𝐥𝐥𝐬: • AI 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Flutter & React Native (cross platform development for iOS and Android) • 𝐀𝐈 𝐚𝐧𝐝 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 OpenAI API, GPT based apps, chatbots, conversational AI, automation systems • 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐚𝐧𝐝 𝐂𝐥𝐨𝐮𝐝 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 Firebase, AWS, Node.js, REST APIs, GraphQL, real time databases • 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰𝐬 AI powered automation, chatbot systems, productivity tools • 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐚𝐧𝐝 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 Scalable mobile architecture, clean code practices, performance optimization, CI CD 𝐏𝐫𝐨𝐯𝐞𝐧 𝐑𝐞𝐬𝐮𝐥𝐭𝐬: • Launched 𝟐𝟎+ mobile apps (iOS & Android) • Built apps used by 𝟏𝟎𝐊+ users across platforms • Developed AI systems handling 𝟓𝐊+ daily chatbot interactions • Improved app performance by up to 𝟑𝟎% in production apps • Reduced crashes and optimized apps for real-world usage 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: • Full ownership from idea → development → deployment • Clean and structured code your team can rely on • Specialized in AI-powered apps, not just basic mobile development • Clear communication and consistent progress updates • Focused on long term success, not short term fixes 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 𝐁𝐞𝐬𝐭: • Build AI-powered mobile apps (chatbots, assistants, automation tools) • Develop cross platform apps using Flutter and React Native • Integrate OpenAI and intelligent automation into mobile products • Fix, optimize, and scale slow or unstable applications • Take apps from idea to launch to scale 𝐋𝐞𝐭’𝐬 𝐖𝐨𝐫𝐤 𝐓𝐨𝐠𝐞𝐭𝐡𝐞𝐫: If you’re building an AI-powered mobile app or want to improve an existing one, send me a message and let’s discuss how to build or scale your app.
Zoraiz Ejaz S.
$25/hr
100% Job Success
$80K+ earned
Available now
Offers consultations
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🚀 Need to launch your mobile app fast? Let's talk. I help startups, founders, and growing businesses build production-ready Flutter, FlutterFlow, and React Native apps that users actually use, not just prototypes that never make it to market. 🏆 Top Rated Plus | ⭐ 100% Job Success | 📱 Apps with 50K–100K+ Downloads | ⏱ 10+ Years Experience Most developers deliver code. I help deliver successful mobile products. I'm a Mobile App Developer specializing in Flutter, FlutterFlow, React Native, Firebase, and Supabase, helping startups move from idea, Figma, MVP, or existing codebase to a stable, scalable mobile application ready for real users. Whether you're building a new product, improving an existing app, adding AI features, integrating APIs, or preparing for App Store & Play Store launch, I can help you ship faster while avoiding costly mistakes. 📱 Featured Mobile Apps 🔥 SlimAI Calorie Tracker (50K+ Downloads | 4.7 Rating) | AI-powered health and fitness application featuring: • AI food recognition • Voice calorie logging • Personalized nutrition plans • Fasting & hydration tracking • Subscription billing • Firebase backend 🔥 Xendit Apollo (100K+ Downloads) | Enterprise FinTech application featuring: • Receipt scanning • Approval workflows • Role-based permissions • Push notifications • Financial reporting • React Native architecture 🔥 SpyraBeauty (50K+ Downloads) | Social commerce platform featuring: • Product reviews • Ratings & recommendations • Chat functionality • Influencer profiles • Firebase integrations Additional projects include Cru Social, NoYelling, booking applications, marketplace platforms, social networking apps, healthcare apps, productivity tools, and FlutterFlow SaaS products. 🚀 What I Build ✔ Flutter Apps ✔ FlutterFlow Applications ✔ React Native Apps ✔ iOS Applications ✔ Android Applications ✔ MVP Development ✔ AI-Powered Mobile Apps ✔ SaaS Mobile Applications ✔ Healthcare Applications ✔ FinTech Applications ✔ Social Networking Apps ✔ Marketplace Platforms ✔ Booking & Scheduling Systems ✔ On-Demand Service Apps 🤖 𝗔𝗜 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • AI-powered Flutter apps using OpenAI GPT-4, Anthropic Claude, and Google Gemini APIs • Voice integration via Whisper, Speech-to-Text, and real-time transcription in Flutter • Intelligent chatbots, AI recommendations, and automation flows inside Flutter UI • LLM-powered personalization, smart search, and on-device ML with TensorFlow Lite • RAG pipelines and custom AI workflows integrated cleanly into Flutter mobile apps ⚡ Mobile Development Expertise • Flutter Development • FlutterFlow Development • React Native Development • Firebase • Supabase • REST APIs • GraphQL • OpenAI Integration • AI Features • Push Notifications • Google Maps • Geolocation • Real-Time Chat • Stripe Integration • RevenueCat • In-App Purchases • Authentication • App Performance Optimization • CI/CD • App Store Deployment • Google Play Deployment 🛠 Tech Stack Flutter • FlutterFlow • React Native • Dart • JavaScript • TypeScript • Firebase • Supabase • Node.js • PostgreSQL • MongoDB • OpenAI • Stripe • RevenueCat • Google Maps • FCM • GitHub • REST APIs 💡 Why Clients Hire Me Most clients hire me because they need someone who can take ownership and solve problems—not just complete tasks. I help with: • Feature planning • Product strategy • App architecture • Performance optimization • Existing codebase takeovers • Scalability planning • UX improvements • Launch preparation I don't blindly build features. I think through user experience, technical risks, edge cases, scalability, monetization, and long-term maintainability so your app is positioned for growth after launch. 📈 Industries Served Health & Fitness • FinTech • Healthcare • Social Networking • Beauty • Productivity • SaaS • Marketplaces • Booking Platforms • On-Demand Services If you're looking for a Flutter Developer, FlutterFlow Expert, React Native Developer, or Mobile App Development Partner who can build, improve, scale, or launch your mobile application, send me a message and let's discuss the cleanest path forward.
Zoraiz Ejaz S. has worked .
Dmitry V.
$49.99/hr
92% Job Success
$100K+ earned
Available now
Offers consultations
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🤖 I build production AI systems - not API demos. I'm Dmitry, an AI Engineer with 10+ years of full-stack background. I help SaaS, crypto, and digital product companies ship AI features that work with real users - at scale, within token budgets, with proper fallbacks. The difference matters. Anyone can call the OpenAI API in a tutorial. The hard part is making AI features that don't break in production: conversation memory that persists, prompts that survive edge cases, streaming that handles network drops, and costs that don't spiral. That's what I do. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 What clients hire me for ✅ Custom ChatGPT / GPT-4o / Claude integrations into existing apps ✅ RAG systems with vector search over business documents ✅ AI chatbots & assistants with persistent context (web + mobile) ✅ AI workflow automation (n8n + LLM for ops) ✅ Token cost optimization & prompt engineering ✅ Taking AI-built MVPs (Lovable, Cursor, Bolt) to production-grade ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📂 Recent production AI work 🔹 HOMI - Learning platform with ChatGPT-powered lesson generator Built GPT-4 integration into live LMS app with paying users. Custom prompts, streaming responses, conversation memory, ChatGPT-driven sample conversations, fallback handling. Live for 2+ years. $26K+ delivered across 4 contracts - same client kept coming back. 🔹 TapSwap - Gamified learning center for crypto exchange Built end-to-end LMS with 70 educational articles, 820 quiz questions, real-time leaderboard, reward redemption system. Angular + Firebase + custom gamification logic. 🔹 Style 220 - AR mobile app for VIMAR (Italian electrical products) Augmented reality "try-on" for switches and sockets in interior settings. iOS + Android, integrated with online store and order placement workflow. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ My technical stack AI: OpenAI (GPT-4o, GPT-4, DALL-E, Whisper), Claude API, LangChain Backend: Node.js, NestJS, Express, Firebase Cloud Functions Frontend: Angular, Ionic, TypeScript, RxJS, Tailwind CSS Mobile: Hybrid apps (Ionic + Capacitor) for iOS & Android Databases: Firestore, MongoDB, PostgreSQL Cloud: Firebase, GCP, AWS, Vercel, Cloudflare Automation: n8n, MakeCom, webhook orchestration ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🏢 Backed by WhyNet Agency I work with a senior team of 4 engineers + 1 PM under WhyNet - 8 years on Upwork, 100% Job Success, $500K+ delivered, 84 completed projects. This means: senior code review on every project, dedicated project manager keeping communication on track, additional engineering capacity when scope grows beyond what one developer should handle. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💼 How I work → Async-first communication. No 5-call discovery loops before contract. → Structured PDF proposal within 24-48h after we discuss your project. → Weekly demos so you see real progress, not status reports. → Production-grade code with proper architecture, error handling, testing. → Direct and honest. If something won't work, I'll tell you before we start. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 I work best with ✓ SaaS founders adding AI features to existing products ✓ Crypto / Web3 teams needing chatbots, RAG, or AI tooling ✓ EdTech companies building AI-assisted learning experiences ✓ Companies taking AI-generated MVPs to real production ✓ Teams replacing manual operations with n8n + LLM workflows ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✨ Ready to start? Send your project description - you get a structured proposal in 24-48h. Not a generic "let's hop on a call" template. - Dmitry · WhyNet CTO
Muhammad M.
$20/hr
100% Job Success
Available now
Offers consultations
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🏆 Top Rated | 100% Job Success | 54+ Jobs | 6+ Years Full-Stack Developer. Mobile App Developer. AI Integration Specialist. Builder of production-grade web and mobile products that scale. Led a team of 12 engineers as Technical Lead. Shipped a live iOS app on the App Store. Delivered SaaS platforms, creator tools, and government-grade web systems on time, every time. Not just code real business problems, solved. 🤖 AI INTEGRATION & AUTOMATION OpenAI Developer — ChatGPT API integration into web & mobile apps Claude API & LLM-powered features — chatbots, copilots, AI automation AI SaaS Development — multi-tenant platforms, subscription systems AI workflow automation — n8n, Zapier, custom pipelines Lovable.dev & Replit — rapid prototyping to production-ready builds 35% reduction in manual dev effort through AI-assisted engineering 📱 MOBILE APP DEVELOPER (REACT NATIVE) iOS Developer & Android Developer — cross-platform React Native apps Live App Store app: The Fitness Directory (UK) 30% faster load times, 25% crash reduction on shipped apps Push notifications, deep linking, payment flows, real-time sync 🌐 FULL-STACK DEVELOPER — WEB APPLICATIONS React.js · Next.js Developer · Node.js Developer · NestJS Developer · Laravel Developer · TypeScript SaaS Development · MVP Development · CRM Development · Admin Panel Development Supabase · PostgreSQL · MongoDB · MySQL · Firebase Stripe, PayPal & multi-currency payment gateway integration API Development — REST APIs, GraphQL, WebSockets, JWT, OAuth2 Backend Developer — AWS, GCP, Docker, CI/CD, Vercel, GitHub Actions 🚀 WHAT I SHIPPED KollabKey — Creator partnership SaaS (React + Node.js + Supabase + Stripe) Dominova — French government disability eligibility platform The Fitness Directory — Live iOS app on UK App Store Multiple B2B SaaS tools, admin dashboards & marketplace platforms ⚡ WHY CLIENTS CHOOSE ME 100% on-time delivery across all 50+ completed projects Sub-200ms API response times on production systems MVP to launch in 1 to 2 weeks when scoped correctly Clear communication, daily updates, zero ghosting Scalable, maintainable architecture from day one Startup-focused product thinking, not just feature delivery Need a scalable AI SaaS product, startup MVP, custom web platform, or mobile app built the right way? Send a message with the project idea. Response within a few minutes.
Muhammad M. has worked .
$30/hr
100% Job Success
$6K+ earned
Available now
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Over the past eight years, I have worked as a Mobile & Website & Web scraping Developer, and I began specialising in AI-related project too three years ago. I have extensive experience working both independently and collaboratively on time-sensitive and technically challenging projects. These have often required a combination of creative problem-solving and strong technical expertise, along with the ability to ensure optimal performance across a broad range of platforms. Always focused on producing well-documented, well-architectured, well-designed projects based on efficient and clean code. My tech stacks: - Mobile/Web: React Native - CLI & Expo, React, Redux, Context API, Hook, Next, Xamarin, JavaScript/TypeScript, HTML/CSS, SCSS/SASS/LESS, Tailwind CSS, Bootstrap, MUI, Ant-design, NativeBase, React-native-paper, C#, Python - Git: Gtihub, GitLab, Bitbucket - Backend: Laravel, Node.js - DataBase: MySQL, MongoDB, PostgreSQL, Firebase Cloud Firestore - Cloud Server: AWS(S3, EC2, Lambda), Azure, Firebase, Docker - API: REST, GraphQL(Apollo, Helix, AWS Amplify) - Xamarin to React Native or Flutter - AI/ML, openAI, chatGPT, LLM, Big Data, LangChain, Claude, DeepSeek, Azure, Pytorch, Tensorflow - AI Speech-to-Text, AI Text-to-Image, AI video generation, AI Agent Development From my expertise experience, I can provide the perfect solutions and creative ideas. Looking forward to discussing your project and business. Thanks!