AI/RAG & full-stack app developer specializing in React, Next.js, Node.js, React Native, Python, OpenAI, and AI agent development. I build scalable SaaS platforms, cross-platform mobile apps, RAG-based tools, AI automation systems, and production-ready web applications. 8+ years of experience. 100% Job Success, Top Rated on Upwork. I build AI-powered web and mobile apps. AI/RAG apps. AI agents. SaaS platforms. Dashboards. Mobile apps. Business automation systems. I help founders, startups, and growing businesses turn ideas into production-ready products using React, Next.js, Node.js, React Native, Python, FastAPI, OpenAI, GPT-4, GPT-4o, PostgreSQL, Supabase, and AWS. What I can build for you: AI/RAG Applications Custom AI chatbots, document-based AI assistants, PDF Q&A tools, knowledge-base search, RAG pipelines, internal copilots, AI customer support tools, OpenAI integrations, speech-to-text features, voice AI workflows, and AI-powered business tools. AI Agent Development Agents that retrieve data, call APIs, automate workflows, process business logic, generate reports, support customers, and connect with CRMs, dashboards, databases, and third-party platforms. Full-Stack Web Apps SaaS platforms, admin dashboards, customer portals, vendor portals, marketplaces, payment systems, subscription platforms, analytics dashboards, REST APIs, GraphQL APIs, authentication, and scalable backend systems. Mobile App Development React Native apps for iOS and Android, booking apps, delivery apps, customer apps, vendor apps, driver apps, real-time features, push notifications, maps, payments, and backend-connected mobile systems. Cloud, Database & Integrations AWS, Docker, CI/CD, PostgreSQL, MySQL, MongoDB, Supabase, Firebase, Stripe, PayPal, SendGrid, Socketio, OAuth, Auth0, and custom third-party API integrations. Why clients work with me: • 8+ years of development experience • 100% Job Success and Top Rated on Upwork • Full-time availability • Clear communication • Daily progress updates • Clean and maintainable code • Strong product thinking • End-to-end execution from idea to launch I am a strong fit for AI SaaS products, AI automation tools, RAG platforms, AI support systems, marketplaces, logistics apps, fintech products, healthcare tools, edtech platforms, and internal business dashboards. Share your project details through Upwork and I will help you choose the right technical approach before development starts.

Senior iOS & Cross‑Platform App Developer | 6+ Years of Experience Are you looking to build a high-quality, scalable, and user-friendly mobile app that works seamlessly across devices? I help startups, businesses, and entrepreneurs turn their app ideas into real, fully functional applications using modern tools and best practices. With 6+ years of experience in mobile and web development, I specialize in creating robust iOS and cross-platform apps that deliver smooth performance, clean architecture, and intuitive UI. What I Do iOS App Development (Swift, SwiftUI, Objective-C): AVFoundation, CarPlay, Now Playing integration In-App Purchases, Apple Pay, Push Notifications HealthKit, MapKit, CoreData, Location Services App Store Submission and Apple guidelines compliance React Native App Development (iOS & Android): Fully cross-platform apps with native performance Firebase, Real-time Chat, Payment Gateway Integration Social Login (Apple, Google, Facebook) Camera, Geolocation, BLE Devices Frontend Web Development (React.js): Responsive and dynamic websites Admin Panels and Dashboards API Integration and Component Libraries (Tailwind, MUI) Recent Projects Radioly – Live radio and streaming app with CarPlay support Libaoo – Book reader and recommendation platform Laurenstallwood – Fitness and workout tracking app MapBuzz – Dating and networking app with real-time chat Several AVPlayer and media-based custom projects Industries Served Audio Streaming and Radio Fitness and Healthcare Social Media and Dating E-commerce and Online Services Utility Apps (BLE, Live Camera, Real-time Tools) Why Work With Me 6+ years of full-cycle app development experience Hands-on expertise in native and cross-platform mobile stacks High-performance, scalable, and well-architected code Pixel-perfect UI/UX implementation Clear communication and timely delivery Free support for minor bug fixes and adjustments after launch Let’s Build Your App Whether you’re starting from scratch or want to upgrade an existing app, I can help you bring your vision to life with modern tech, reliable architecture, and a user-first approach. Send me a message to discuss your idea or project needs. I usually respond within 1–2 hours. — Sahil Dhiman iOS | React Native | SwiftUI | React.js Developer

I'm a hands-on Software Architect & AI-Enabled Systems Engineer with 20+ years of experience building scalable web platforms, SaaS products, mobile apps, and enterprise systems. Today many businesses can generate UI or prototype code using AI tools, but turning those ideas into secure, scalable, production-ready systems is where experienced engineering matters. That’s where I help. I work with startups, agencies, and growing companies to: • Architect scalable SaaS platforms • Integrate AI capabilities into existing systems • Refactor and stabilize AI-generated codebases • Design high-performance APIs and backend systems • Automate business workflows through smart integrations • Deploy reliable cloud infrastructure I’ve spent two decades building mission-critical software for leading organizations including: Postmedia, Hamilton Health Sciences, OrthoEvidence, Fleet Complete, GiftCash, Quote It Inc., and Prometheus Group (USA). These systems support real users, real revenue, and real operational workloads.

🚀 Flutter Developer | iOS & Android | Firebase • Booking • Healthcare ⭐ Top Rated on Upwork | 100% Job Success | 25+ Apps Published Your app idea is sitting in a Google Doc right now — and maybe you have already been burned. A developer who ghosted you mid-build. Code nobody can maintain. An app that worked on the emulator and broke on a real phone. That stops here. I am Fazil, a Flutter & Dart developer who builds cross-platform mobile apps for iOS and Android from a single codebase. One codebase. Two platforms. Faster launch, lower cost — and an app that actually works on launch day. 🔧 What I build Booking & appointment apps (salons, services, real estate) Healthcare & fitness tracking apps On-demand & delivery apps (food, ride-hailing, home services) E-commerce & marketplace apps Real-time chat, live streaming & community apps 💻 Tech I work with daily Flutter • Dart • Firebase • Firestore • BLoC • REST APIs • Stripe & payment gateways • Google Maps • Push notifications • Real-time chat • Custom admin panels ✅ Why clients stay with me Scope agreed before day one — no surprise invoices Tested on real devices before handoff, not just emulators Clean, documented code your next developer can actually read Full App Store & Google Play deployment — I don't leave you at the finish line 📦 Recent work CarVault Pro — a full Flutter + Firebase car-maintenance tracker with push notifications and MOT reminders, designed, built, and shipped in 10 days. I've also delivered booking, tenant-screening, live-streaming, and chat-integration apps for clients worldwide — 5-star reviews across the board. 💬 Send me your app idea and your current timeline. Within 24 hours I will tell you exactly what it takes to build it — scope, time, and cost. No vague estimates. 🟢 Available now and ready to start.

🏆 Top Rated Plus Developer 📱 12+ Years of Experience in Mobile App Development ⚡ Scalable, Performance-Driven & User-Focused Solutions Hi, I am a mobile app developer focused on helping businesses turn ideas into stable, scalable, and user-friendly applications. From MVPs to enterprise-grade platforms, I work closely with clients to build mobile solutions that are not only technically strong but also aligned with long-term business goals. Whether it’s a cross-platform app using React Native or Flutter, or a native iOS/Android application with Swift and Kotlin, my focus remains the same: building reliable products with clean architecture, smooth performance, and excellent user experience. Expertise:- React Native Development Flutter Development Native iOS Apps (Swift / SwiftUI) Native Android Apps (Kotlin) Firebase & Supabase Integration REST APIs & Backend Connectivity Real-Time Chat & Streaming Features Scalable App Architecture Performance Optimization Industry Experience:- E-Commerce & Marketplace Apps Fitness & Wellness Platforms Social Networking Apps Logistics & Tracking Solutions HR & Workforce Management Systems On-Demand Service Platforms Tech Stack:- React Native • Flutter • Swift • Kotlin • Firebase • Supabase • Laravel • Node.js • Twilio • Agora • WebRTC My Approach to Mobile App Development:- I focus on building applications that are not just functional, but scalable, stable, and easy to evolve as your business grows. Clients generally work with me for: Structured and scalable development practices Strong focus on app performance and user experience Proactive communication and smooth collaboration Reliable long-term technical support Practical solutions aligned with business goals I value long-term partnerships and enjoy contributing as a technology partner rather than just a development resource. If you are planning to build or scale a mobile application, Let's connect..!

Full Stack Developer | Healthcare App Developer | Healthtech Developer | React Native Expert | 10+ years experience | 100+ Projects Delivered | Worked with 50+ Startups | US-based | Android App | iOS App | React JS | Flutter | Swift | Native App Development | Cross Platform App Development | Full Stack Development | Web App Development Hello, I’m Javeed. With hands-on full-stack and AI engineering, I'm leading a US-based team of 70+ AI-driven engineers. Over the past 10+ years, I’ve delivered 100+ projects across a diverse portfolio, working with Fortune 500 companies, leading healthtech and healthcare organizations such as 𝐉𝐨𝐡𝐧𝐬 𝐇𝐨𝐩𝐤𝐢𝐧𝐬 (𝐔𝐒), and government clients including 𝐋𝐢𝐛𝐲𝐚 & 𝐀𝐛𝐮 𝐃𝐡𝐚𝐛𝐢, as well as 50+ startups, helping them build fast, scalable, production-grade platforms. I act as a senior technical growth partner. I help HealthTech founders and medical innovators move from idea to enterprise-ready platform, eliminating the delays, rework, and compliance risks that stall growth. 𝐖𝐡𝐚𝐭 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭𝐢𝐚𝐭𝐞𝐬 𝐦𝐲 𝐰𝐨𝐫𝐤: Speed without compromising compliance. I use an AI-accelerated, compliance-first development approach to build secure, scalable, BAA-ready platforms from day one, delivering in weeks, not months. This helps founders ship faster, raise with confidence, and pass enterprise and healthcare audits without rework. 𝐇𝐨𝐰 𝐈 𝐇𝐞𝐥𝐩 𝐇𝐞𝐚𝐥𝐭𝐡𝐓𝐞𝐜𝐡 𝐅𝐨𝐮𝐧𝐝𝐞𝐫𝐬: 𝐂𝐨𝐫𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 I work with HealthTech founders using a clear, battle-tested framework to solve the most common challenges in HealthTech development: ✅2-Week Prototype for Market Validation: Validate your idea with a working, HIPAA-compliant prototype to secure investor funding and early user feedback. ✅Low-Code to Enterprise-Grade Migration: Migrate your app from a limiting platform to a secure, scalable, enterprise-grade architecture built for growth. ✅8-Week HIPAA-Compliant MVP Launch: Launch a market-ready, HIPAA-compliant MVP in just 8 weeks to reach pilot customers faster. ✅HIPAA-Compliant AI Features Integration: Integrate powerful AI features with PHI-safe data flows and auditable logs to maintain full compliance. ✅MVP to Enterprise-Ready Transformation: Transform a successful MVP into a secure, BAA-ready platform prepared for enterprise security audits and deployments. 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐂𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬 (𝐖𝐡𝐚𝐭 𝐈 𝐖𝐨𝐫𝐤 𝐎𝐧): ✅ Mobile Apps: iOS, Android, React Native, Flutter, Swift, Kotlin ✅ Web Apps: React.js, Node.js, Python, TypeScript, JavaScript ✅ AI & Machine Learning: TensorFlow, PyTorch, OpenAI, Azure Cognitive Services ✅ Backend & Databases: Nest.js, GraphQL, PostgreSQL, MongoDB ✅ Cloud & Security: AWS, Azure, GCP, HIPAA-compliant infrastructure ✅ Integrations: EMR/EHR (HL7/FHIR), Telehealth, Payments, 3rd Party APIs, IoT Devices 𝐖𝐡𝐲 𝐏𝐚𝐫𝐭𝐧𝐞𝐫 𝐖𝐢𝐭𝐡 𝐌𝐞? ✔ Senior Technical Ownership: You work directly with me, the person architecting your system, while my team handles the execution. ✔ Healthcare-First Architecture: Compliance is built into our DNA, not patched on as an afterthought. ✔ Speed with Structure: Our AI-accelerated process delivers speed without creating technical debt. ✔ The Power of a Full Team: You get the expertise of a CTO and the delivery power of a dedicated, pre-vetted engineering team. ✔ Long-Term Thinking: We design systems to pass audits, scale users, and support your next funding round. My mission is to be the technical partner that HealthTech innovators deserve. If you need to build a compliant, scalable, and investor-ready platform, let's connect.

As an accomplished full-stack developer with 12+ years of experience in web and mobile app development, I excel at building tailored solutions for various industries. My primary objective is to deliver customer satisfaction by utilizing custom algorithms, complex solutions, and Agile-based methodologies. I specialize in building high-quality, tailored solutions that meet your business needs. With a deep understanding of core web and mobile technologies, I easily write high-performance, maintainable, and reusable code. My technical proficiency includes: 👉 Backend: Node.js, Nest.js, Express, Custom Hooks, PHP, MVC, Laravel, Symphony, CakePHP 👉 Mobile App: React Native, Flutter, Firebase 👉 UI Framework: ReactJS, NextJS, Redux, AngularJS/2+, Vue.JS, Material UI, HTML5, CSS3, Bootstrap, jQuery, JavaScript 👉 Database: MongoDB, MySQL, PostgreSQL 👉 API Creation & Integration: I've worked with countless APIs using methods like REST, SOAP, XML, etc. Some examples include Google, Amazon Marketplace Web Service, Amazon AWS, shipping providers, payment processors, social integration, HR, Payroll, Insurance Carriers, Accounting, and custom APIs. Prioritize user-friendly front-end interfaces, efficient backend admin interfaces, and secure implementation techniques with a focus on responsive design. I place great emphasis on user experience (UX), accessibility, compatibility, and quality. Using Agile-based SCRUM methodology, iterative development, and an MVP-first approach, I have developed highly scalable and future-ready web applications. I have a proven track record of writing high-performance, maintainable, and reusable code. Let's collaborate and elevate your business to new heights of success.

I’m a Senior Mobile App Developer with 12+ years of experience building and launching production-ready iOS and React Native applications for startups, founders, and growing businesses. I specialize in taking ideas from concept → MVP → App Store / Play Store launch, with a strong focus on performance, clean UI, and long-term maintainability. ✅ What I Do Best iOS app development using Swift / SwiftUI / UIKit Cross-platform apps using React Native MVP development for startups Fixing, completing, and polishing existing apps App Store & Play Store publishing and compliance Performance optimization & bug fixing Ongoing maintenance and feature upgrades 🛠️ Tech Stack iOS: Swift, SwiftUI, UIKit, Core APIs Cross-Platform: React Native, JavaScript, TypeScript Backend Integration: REST APIs, Firebase Tools: Xcode, Git, TestFlight, CI/CD Deployment: App Store & Play Store submission 🚀 Why Clients Hire Me Clear communication & quick response Strong understanding of App Store guidelines (fewer rejections) Clean, scalable, and well-documented code Honest timelines and affordable rates Long-term support mindset (not just delivery) I’ve worked on fitness, utility, e-commerce, social, and business apps, helping clients ship stable products and continue improving them post-launch. If you’re looking for a developer who can own the app, not just write code, let’s connect. Thank you Hardik R

🏅 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 | 🚀 9+ 𝐘𝐞𝐚𝐫𝐬 | 📱 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 & 𝐍𝐚𝐭𝐢𝐯𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 I specialize in building 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬 using both 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 (𝐃𝐚𝐫𝐭) for cross-platform and 𝐧𝐚𝐭𝐢𝐯𝐞 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 (𝐊𝐨𝐭𝐥𝐢𝐧 𝐟𝐨𝐫 𝐀𝐧𝐝𝐫𝐨𝐢𝐝, 𝐒𝐰𝐢𝐟𝐭 𝐟𝐨𝐫 𝐢𝐎𝐒). I help startups and businesses turn their ideas into fully functional, scalable, and beautiful apps — delivered 𝐨𝐧 𝐭𝐢𝐦𝐞, 𝐨𝐧 𝐛𝐮𝐝𝐠𝐞𝐭, 𝐚𝐧𝐝 𝐰𝐢𝐭𝐡 𝐟𝐮𝐥𝐥 𝐬𝐭𝐨𝐫𝐞 𝐝𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭. 🚀 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐃𝐨 𝐅𝐨𝐫 𝐘𝐨𝐮  • Flutter App Development (iOS & Android)  • Native Android (Kotlin) / iOS (Swift/SwiftUI) Apps  • Firebase Integration, REST APIs, Local & Cloud Databases  • Clean Architecture (MVVM, Bloc, Hilt, Riverpod)  • In-App Purchases, Maps, Stripe/PayPal, Push Notifications  • Full App Lifecycle: Design → Development → Deployment  • Maintenance, Bug Fixing & App Store Support 💻 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 & 𝐃𝐚𝐫𝐭: Bloc, Riverpod, Provider, GetX, Animations 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 (𝐊𝐨𝐭𝐥𝐢𝐧): Jetpack Compose, Retrofit, Room, MVVM, Dagger/Hilt 𝐢𝐎𝐒 (𝐒𝐰𝐢𝐟𝐭): SwiftUI, CoreData, Combine, MVVM 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞: SQLite, Room, Firebase, MongoDB, PostgreSQL, AWS 𝟑𝐫𝐝-𝐏𝐚𝐫𝐭𝐲: Stripe, PayPal, Twilio, Google Maps, OneSignal, Social Logins ✅ 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞  • 9+ years of experience in mobile development  • Founder of Spybird Infotech  • Deep understanding of both business needs and technical architecture  • Clean, scalable, well-documented code  • Transparent communication, agile delivery, and post-launch support  • Top Rated on Upwork with 100% JSS and 30+ successful projects 💬 𝘎𝘰𝘵 𝘢𝘯 𝘪𝘥𝘦𝘢? Let’s discuss how I can help bring it to life — invite me or message me at the top of my profile. Thank you, 𝐒𝐚𝐧𝐣𝐚𝐲 𝐆𝐨𝐡𝐢𝐥 📍 Founder, Spybird Infotech

🚀 Mobile App Developer Helping Startups Turn Ideas into Powerful Apps Are you looking to build a high-quality Android or iOS app that is scalable, user-friendly, and market-ready? I specialize in developing: ✔ Custom Mobile Applications (Android & iOS) ✔ Cross-Platform Apps (Flutter / React Native) ✔ MVP Development for Startups ✔ UI/UX Focused App Solutions ✔ API Integration & Backend Support ✔ App Maintenance & Optimization I focus on: ☞ Clean code ☞ On-time delivery ☞ Clear communication ☞ Long-term client relationships Whether you have an idea, wireframe, or existing app to improve — I can help you bring it to life efficiently and professionally. Let’s build something amazing together !!!