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$5/hr
80%
Job Success
$10K+ earned
Available now
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🚀 Building Production-Ready Mobile Apps for Startups, Businesses, and Scalable Digital Products
Are you looking for a mobile app developer who can turn your idea into a stable, high-performance iOS and Android product?
I am a senior mobile app developer with 5+ years of professional experience and 30+ published apps on the App Store and Google Play. I specialize in building scalable mobile applications using Flutter, Dart, native Android, native iOS, Java, Kotlin, Swift, clean architecture, and modern real-time technologies.
My focus is not only on writing code. I design mobile systems that are fast, maintainable, scalable, and ready for long-term business growth. From MVP development to production deployment, I handle the complete mobile app lifecycle, including architecture, UI implementation, backend integration, testing, CI/CD, native configuration, and store submission.
💼 Core Expertise
• Flutter & Dart mobile app development
• Native Android development using Java, Kotlin, Android Studio, Gradle, ProGuard, and R8
• Native iOS development using Swift, Xcode, CocoaPods, TestFlight, and App Store Connect
• Clean Architecture, MVVM, DDD, BLoC, Riverpod, Provider, and GetX
• Firebase, Firestore, Auth, Cloud Functions, FCM, Crashlytics, and Analytics
• REST APIs, GraphQL, OAuth 2.0, JWT, and secure backend integrations
• Offline-first apps using SQLite, Room, Hive, and local storage solutions
• Pixel-perfect UI from Figma with Material 3, Cupertino, responsive layouts, and animations
⚡ Real-Time & Advanced App Systems
I have strong experience building real-time and communication-based mobile apps, including the following:
• WebRTC voice and video calling
• Real-time chat and messaging systems
• WebSockets, SignalR, and Socket. io-based live data sync
• Real-time order tracking, live collaboration, and high-concurrency app flows
• Push notifications, deep linking, localization, and accessibility
• Native platform integrations for Android and iOS
I also integrate AI-powered features into mobile apps, including custom chatbots, LLM-based assistants, AI workflows, and automation tools. I can also improve and refactor AI-generated MVPs from tools like Cursor, Lovable, Bolt, and Replit into clean, production-grade codebases.
📦 What I Can Build for You
• Production-ready mobile MVPs for startups
• Flutter, Android, and iOS applications
• Real-time video, audio, chat, and collaboration apps
• Food delivery, hotel booking, e-commerce, marketplace, and enterprise apps
• AI-powered mobile applications and chatbot integrations
• Legacy app migration to Flutter or modern native architecture
• Firebase-backed applications with secure authentication and cloud logic
• Payment and subscription systems using Stripe, Apple Pay, Google Pay, and RevenueCat
• Location-based apps with Google Maps, Mapbox, tracking, and geofencing
• App Store and Google Play deployment with CI/CD pipelines
✅ Why Work With Me?
You will get clean, maintainable, and scalable code written with enterprise-level standards. I focus on performance optimization, smooth 60 FPS user experiences, reliable architecture, strong communication, and complete deployment support.
I have worked as a senior mobile app developer and team lead, managing production apps, leading mobile teams, building real-time systems, improving release workflows, and delivering apps for clients across multiple industries.
Whether you need a new app from scratch, an MVP ready for investors, a real-time communication product, a Flutter app, or native Android and iOS improvements, I can help you build it properly.
Let’s turn your idea into a high-performance mobile application. Message me today and let’s discuss your technical requirements.
Farhan U.
has worked
.
$40/hr
93%
Job Success
$90K+ earned
Available now
Offers consultations
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I build digital products that work, scale, and make your business more competitive: mobile apps, AI-powered automation, and web platforms engineered for real business results.
🏆 Top-Rated Expertise: Delivering high-performance mobile apps, AI solutions, and web platforms. I help clients move from problem to product with a focus on scalability and ROI.
🤖 AI Solutions & Automation
Custom AI chatbots, workflow automation, and AI agents built with OpenAI, LangChain, and modern ML frameworks.
Tech: OpenAI API · LangChain · Python · Chatbot Development
📱 Mobile App Development (iOS & Android)
Scalable apps using Flutter, React Native, and Swift. From health platforms to delivery apps, I architect for scale from day one.
Tech: Flutter · React Native · Swift · Firebase
🌐 Full Stack Web Development
Fast, SEO-optimized, scalable web applications engineered to convert visitors into customers. Tech: Next.js · React · Node.js · Python
Why Clients Choose Me:
✅ Transparent communication & regular updates
✅ 100% on-time delivery record
✅ Clean, documented, scalable code
✅ Proactive strategic input & risk flagging
✅ Post-launch support for long-term success
Have a project in mind or stuck on a technical problem? Send me a message. I'll respond with honest feedback, a clear approach, and a realistic timeline.
Let's build something you're proud of.
$20/hr
100%
Job Success
$9K+ earned
Available now
Offers consultations
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You need a developer who ships, not someone who disappears after the first milestone. I’m Saad, a full-stack developer with 6+ years building SaaS platforms, web & mobile apps, and AI-powered products that real users actually use.
★ 5.0 rating across all jobs
★ SaaS dashboards, admin panels, and marketplaces delivered end-to-end
★ React Native apps live on iOS & Android, including fundraising, logistics, on-demand service and food delivery apps.
★ AI-integrated apps using OpenAI, Claude, and modern LLM APIs
What I build
-Web & SaaS Apps: React, Next.js, Node.js, Laravel, Express, PostgreSQL, MongoDB. Clean architecture, fast interfaces, backends that scale. From idea to production.
-Mobile Apps: Cross-platform iOS & Android with React Native. One codebase, full performance.
-AI-Powered Apps: Real products integrating LLMs, not demos.
I handle both frontend and backend. I ask the right questions early, flag issues before they become blockers and communicate clearly throughout. When needed, I also use tools like Claude and Cursor to speed up development without compromising code quality, so I can deliver faster while keeping the product reliable.
Simple process: message me what you’re building → I respond quickly → we move fast from there.
Muhammad S.
has worked
.
$20/hr
100%
Job Success
$100K+ earned
Available now
Start of list.
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🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 𝗙𝗨𝗟𝗟-𝗦𝗧𝗔𝗖𝗞 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗘𝗥 🏆
I build scalable web and mobile applications using MERN stack, Flutter, and React Native, with modern AI integrations.
With years of experience and 6,000+ Upwork hours, I help startups and businesses transform ideas into production-ready SaaS platforms, web apps, and mobile applications.
From MVP development to full-scale platforms, I handle the complete product lifecycle - architecture, development, integrations, and deployment.
What I Build-
🌐 Web Applications
• Full-stack web apps using MongoDB, Express, React, Node.js
• SaaS platforms and business dashboards
• Admin panels and analytics systems
• REST and GraphQL APIs
• Scalable backend architecture
📱 Mobile Applications
• Cross-platform apps using Flutter and React Native
• iOS and Android app development
• Real-time features, notifications, and integrations
• App Store and Play Store deployment
• High-performance mobile user experience
🤖 AI-Powered Features
• AI chatbots and assistants
• OpenAI / LLM integrations
• AI recommendations and automation workflows
• Intelligent features integrated into web and mobile apps
Startup & MVP Development
I work closely with founders to build and launch products quickly.
• Rapid MVP development
• SaaS and marketplace platforms
• Mobile-first startup products
• Scalable architecture from the beginning
Tech Stack
Web Development
MERN Stack (MongoDB, Express, React, Node.js)
Next.js
TypeScript
Mobile Development
Flutter
React Native
Backend & APIs
Node.js
REST APIs
GraphQL
Databases
MongoDB
PostgreSQL
Firebase
Cloud & DevOps
AWS
Vercel
Docker
CI/CD
What Clients Hire Me For
✔ Web and mobile application development
✔ SaaS platform development
✔ Startup MVP development
✔ AI-powered product features
✔ Backend systems and API development
Why Clients Work With Me
✔ 10+ years of development experience
✔ 6,000+ hours on Upwork
✔ Expertise across web and mobile ecosystems
✔ Clean, scalable, production-ready architecture
✔ Clear communication and reliable delivery
📩 If you're planning to build a web platform, mobile app, or AI-powered SaaS product, feel free to reach out and let's discuss your project.
Associated with
DigiMantra Labs
$2M+
earned
$30/hr
100%
Job Success
$20K+ earned
Available now
Start of list.
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👋 Hello!
I'm a Senior Full-Stack and React Native Developer with 7+ years of experience shipping web and mobile products with AI integrations, clean architecture, and reliable production delivery — across healthcare, edtech, and social networking.
My core stack includes React Native, Expo, React.js, Next.js, Node.js, TypeScript, JavaScript, Nest.js, Express.js, REST API, GraphQL, PostgreSQL, MySQL, MongoDB, Firebase, AWS, Docker, CI/CD pipelines, and AI/LLM integrations (OpenAI and others).
I work across both mobile and web — building cross-platform mobile apps, web dashboards, admin panels, backend services, APIs, authentication systems, payment and subscription flows, notifications, and real-time features.
My recent projects have involved microservice-based backend architectures, secure authentication, payment integrations, robust APIs, and CI/CD pipelines for App Store, Google Play, and web deployments.
My expertise includes:
📱 React Native & Cross-Platform Mobile Development
- React Native / Expo app development
- iOS and Android apps from one codebase
- App architecture and feature development
- App Store / Google Play release support
- Push notifications
- Authentication flows
- Subscriptions and in-app purchases
- Performance optimization
- Bug fixing and app maintenance
⚙️ Full-Stack Web & Backend Development
- React.js / Next.js web applications
- Node.js / Nest.js / Express.js backend development
- REST API and GraphQL integrations
- PostgreSQL, MySQL, MongoDB
- Firebase and AWS services
- Admin dashboards and SaaS platforms
- CI/CD, Docker, and deployment support
🧩 Architecture & Product Engineering
- Clean architecture
- Domain-driven design
- Microservices
- Modular monoliths
- Event-driven systems
- Scalable API design
- Code refactoring and legacy system improvements
- Unit and integration testing
🧠 AI Integration & AI-Powered Development
- Integrating OpenAI and other AI APIs into web and mobile applications
- Building AI-powered features: content generation, intelligent assistants, document automation, personalized recommendations
- Hands-on experience shipping AI features in production (healthcare and edtech domains)
- Using AI tools in my own development workflow to ship faster — while keeping the same engineering standards and code quality
My experience spans healthcare, edtech, and social networking — from AI-powered clinical documentation platforms with EHR integrations, to AI-driven learning apps for kids, to event-based social networking products. Across these projects, I've built real-time data synchronization, payment and subscription flows, authentication and SSO, web admin dashboards, and robust backend services.
I focus on long-term product stability, performance, and practical business outcomes — building products that are easy to maintain, extend, and improve over time.
Whether you're launching a new product, modernizing an existing one, or extending a complex system, I bring senior engineering, modern AI capabilities, and reliable end-to-end delivery.
Let's build something reliable and scalable 🚀
Associated with
Solidium Technology
$30K+
earned
$30/hr
100%
Job Success
Available now
Offers consultations
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I help startups and businesses build high-performance React Native mobile apps — from MVP to scalable production systems.
Most mobile apps fail not because of bad ideas — but because of poor execution. I make sure yours doesn't.
I'm a React Native engineer with 8+ years and $300K+ earned on Upwork building production apps that actually ship, scale, and retain users. From early-stage MVPs to growth-stage products with thousands of active users, I've handled the full journey.
What I bring to your project:
→ Shipped AI-powered apps with OpenAI, voice, and real-time features
→ Built full-stack mobile systems (React Native + Node.js + Firebase/Supabase)
→ Integrated payments (Stripe, IAP), live chat (Agora, WebRTC), maps, and push notifications
→ Clean architecture that doesn't turn into technical debt in 6 months
I work well with founders who want speed without shortcuts, and CTOs who need someone they don't have to manage.
If you have a mobile app to build or improve, message me with the details. I'll tell you honestly whether I'm the right fit — and if I am, we can move fast.
Top Rated | 100% Job Success | 44 completed projects
Usama A.
has worked
.
$35/hr
100%
Job Success
$50K+ earned
Available now
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𝙈𝙤𝙨𝙩 𝙖𝙥𝙥𝙨 𝙛𝙖𝙞𝙡 𝙣𝙤𝙩 𝙗𝙚𝙘𝙖𝙪𝙨𝙚 𝙤𝙛 𝙗𝙖𝙙 𝙞𝙙𝙚𝙖𝙨 - 𝙗𝙪𝙩 𝙗𝙚𝙘𝙖𝙪𝙨𝙚 𝙤𝙛 𝙗𝙖𝙙 𝙚𝙭𝙚𝙘𝙪𝙩𝙞𝙤𝙣.
I'm Neelam, a mobile and web app developer specializing in AI-powered applications, native iOS and Android, and cross-platform apps in React Native and Flutter. I hold a 100% Job Success Score and Top Rated status on Upwork, backed by 10+ years building products — much of it outside this platform.
I don't just write code. I think through your product, challenge weak assumptions early, and build things that hold up in the real world.
My edge? I've shipped across enough domains — health, fintech, social, ecommerce, sports, media, edtech — to know what works before the first line of code. My sharpest focus right now is AI-powered mobile and web apps: products that don't just look smart, but genuinely behave that way.
WHAT I BUILD
➜ AI & Intelligent Apps — LLM integrations, automation pipelines, OpenAI, custom AI workflows
➜ Native Android — Kotlin | Java | Android Studio
➜ Cross-Platform — React Native | Flutter | FlutterFlow
➜ Web — React.js | Next.js | HTML/CSS
➜ Backend & APIs — Python (FastAPI, REST) | Node.js | Express.js
➜ Database & Cloud — PostgreSQL | MongoDB | Firebase | AWS | Google Cloud | Azure
➜ AI-Assisted Development — Claude Code, Cursor, Windsurf, GitHub Copilot, Replit, Lovable
WHAT WORKING WITH ME LOOKS LIKE
No ghosting. No vague updates. No surprises at the finish line. I follow Agile Scrum, communicate proactively, and treat your deadline like it's mine — because my reputation depends on it.
Need more firepower? When a project calls for it, I can scale up with a dedicated senior team — same standards, more bandwidth, with my oversight at every stage.
If you're serious about building something that works, hit "Invite Now" and let's talk.
$35/hr
100%
Job Success
$100K+ earned
Start of list.
End of list.
👋 Hey everybody and welcome to my Upwork space!
I’m a high skilled Full-Stack web developer with experience in creating top-notch progressive web applications using the MERN tech stack, so it's an easy choice for you.
I’m strong in creating complex database (SQL, NoSQL) structures, implementing code in Java, JavaScript, React.js, Nuxt.js frameworks, jQuery library.
Worked on server-side rendering app using Next.js, GraphQL/Apollo/Relay.
Previously I worked in complex and high-scale projects developing entire UI, backend, widgets and frameworks from scratch.
Also worked with serverless cloud services like AWS, Firebase, Supabase.
Proficient in Google Cloud, AI integrations.
Performance and quality are the most important aspects of great web applications, alongside code quality and in-time delivery, which I do in my work.
You will get your source code in the Git or Bitbucket repository.
Using the latest technologies and tools in coding I will strive to build you a great web application.
Just send me an invitation and let's discuss the project🚀
Max S.
has worked
.
Associated with
Face IT
$10M+
earned
$15/hr
100%
Job Success
Available now
Offers consultations
Start of list.
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Flutter & FlutterFlow Developer | Mobile Apps, SaaS & AI Solutions
Have an app idea but need an experienced developer who can turn it into a successful product?
I'm Dhruval G., a Top Rated Flutter Developer with 49+ completed projects, 100% Job Success, and $30K+ earned on Upwork. I help startups and businesses build high-quality mobile apps, SaaS products, and AI-powered solutions that are scalable, fast, and ready for real users.
What I Can Help You Build
✅ Flutter Mobile Apps (iOS & Android)
✅ FlutterFlow Applications
✅ AI-Powered Applications (OpenAI, ChatGPT, Gemini)
✅ SaaS Platforms
✅ Next.js Web Applications
✅ Node.js Backends & APIs
✅ Firebase & Supabase Solutions
✅ Subscription & Monetization Systems (RevenueCat)
✅ Progressive Web Apps (PWAs)
Why Clients Hire Me
✔ 49+ successful projects delivered
✔ 100% Job Success Score
✔ Top Rated Freelancer
✔ Full-stack expertise from frontend to backend
✔ Fast communication and transparent updates
✔ Clean, scalable, production-ready code
✔ Experience across startups, SaaS, fintech, e-commerce, edtech, and AI products
My Development Process
1. Discovery
We discuss your idea, business goals, and user requirements.
2. Planning
I create a clear roadmap with milestones, timeline, and cost estimates.
3. Development
Clean architecture, regular updates, and scalable implementation.
4. Testing & Launch
Complete testing, deployment, App Store and Google Play submission support.
Technologies & Platforms
• Flutter
• FlutterFlow
• Next.js
• Node.js
• Firebase
• Supabase
• OpenAI
• Gemini
• RevenueCat
• REST APIs & Third-Party Integrations
Industries I've Worked With
• AI & Productivity Tools
• SaaS Platforms
• FinTech
• E-commerce
• Education & EdTech
• Healthcare & Wellness
• Social Networking
• On-Demand Services
• Marketplace Applications
• Startup MVPs
Let's Build Something Great
Whether you need an MVP, a complete mobile app, a SaaS platform, or AI integration, I can help bring your idea to market efficiently and professionally.
Dhruval G.
has worked
.
$25/hr
100%
Job Success
$50K+ earned
Available now
Start of list.
End of list.
Hi, I’m a mobile app developer with 10+ years of experience building high-quality iOS and Flutter applications for startups, growing businesses, and enterprise teams.
I specialize in creating reliable, scalable, and user-friendly mobile apps from idea validation and development to deployment, optimization, and long-term support.
What I can help you with:
• Native iOS app development using Swift, Objective-C, and SwiftUI
• Cross-platform app development with Flutter
• AI/ML integration to add smarter app functionality
• AR app development using ARKit, RealityKit, and SpriteKit
• BLE, Wi-Fi, and IoT-enabled mobile applications
• API integrations, real-time communication, and cloud-connected apps
• App maintenance, performance optimization, and post-launch support
I have worked across a wide range of industries, including healthcare, e-learning, retail, eCommerce, music, VoIP, market research, food & beverage, real estate, geo-location, live broadcasting, and social networking.
My technical expertise includes:
• Swift, Objective-C, SwiftUI, Flutter
• REST APIs, GraphQL, WebSockets, gRPC, MQTT
• Firebase, AWS, GCP, Azure
• OAuth, Firebase Auth, Amazon Cognito
• Core ML, ML Kit, Vertex AI, Vision AI
• BLE, Raspberry Pi, Arduino, STM32, mDNS
• In-app purchases, subscriptions, analytics, and monetization
I focus on delivering apps that are not only well-built technically, but also aligned with business goals, user experience, and long-term scalability.
Whether you need a new app built from scratch, advanced feature development, AI or AR integration, or ongoing mobile support, I’d be glad to help bring your idea to life.
Associated with
VT Netzwelt Private Limited
$1M+
earned