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$20/hr
100%
Job Success
$200K+ earned
Offers consultations
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I help startups, founders, and growing businesses build AI-powered products, intelligent automation systems, mobile applications, and scalable SaaS platforms.
Over the last 8+ years, I've worked on products across healthcare, fintech, eCommerce, logistics, education, social networking, and SaaS. My focus today is helping businesses turn ideas into production-ready applications powered by AI, automation, and modern web technologies.
My work includes AI chatbots, AI agents, workflow automation, React Native & Flutter mobile apps, full-stack SaaS platforms, and custom business applications used by thousands to millions of users worldwide.
✔ Top Rated Plus Freelancer ✔ 100% Job Success Score ✔ 8+ Years of Development Experience ✔ 62+ Successfully Delivered Applications ✔ Experience Building Products Used by Millions of Users ✔ Long-Term Partnerships with Startups and Established Businesses
𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 - 𝗔𝗜 𝗙𝗜𝗥𝗦𝗧
AI Agents & Automation
→ OpenAI, Claude, Gemini, Anthropic API integrations → AI Agents and Multi-Agent Workflows → RAG Systems and Knowledge Base Chatbots → AI Customer Support & AI Receptionists → Document Processing and Workflow Automation → Voice AI and AI Calling Agents → LangChain, LangGraph, Vector Databases → N8N, Make, Zapier, Custom Automation Systems
Mobile App Development
→ React Native apps for iOS and Android → Flutter cross-platform applications → Firebase, Supabase, RevenueCat integrations → Real-time messaging and notifications → App Store and Play Store deployment → Performance optimization and scalable architecture
Full-Stack Web & SaaS → React, Next.js, TypeScript, Tailwind CSS → Node.js, NestJS, Express.js, Python, FastAPI → REST APIs and GraphQL → PostgreSQL, MongoDB, MySQL, Firebase, Redis → Stripe, PayPal, Subscription Systems → AWS, GCP, Docker, Vercel, Railway → End-to-end SaaS product development
𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞 - 𝗣𝗥𝗢𝗖𝗘𝗦𝗦
𝟭. 𝗗𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 𝗖𝗮𝗹𝗹 - I understand your business goals, challenges, and requirements before proposing a solution.
𝟮. 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗥𝗼𝗮𝗱𝗺𝗮𝗽 - You receive a clear scope, milestones, timeline, and development plan.
𝟯. 𝗕𝘂𝗶𝗹𝗱 𝗮𝗻𝗱 𝗜𝘁𝗲𝗿𝗮𝘁𝗲 - Weekly progress updates, demos, and transparent communication throughout development.
𝟰. 𝗟𝗮𝘂𝗻𝗰𝗵 𝗮𝗻𝗱 𝗦𝗰𝗮𝗹𝗲 - Deployment, documentation, testing, and ongoing support after launch.
𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗛𝗜𝗥𝗘 𝗠𝗘
✔ AI + Full Stack + Mobile expertise in one developer
✔ Business-focused solutions, not just code
✔ Clean, scalable, maintainable architecture
✔ Strong communication and proactive updates
✔ Experience working with startups from idea stage to production
✔ Long-term support and partnership mindset
𝗟𝗘𝗧'𝗦 𝗪𝗢𝗥𝗞 𝗧𝗢𝗚𝗘𝗧𝗛𝗘𝗥
Whether you're building an AI-powered product, launching a new SaaS platform, developing a mobile app, or automating business workflows, I'm here to help.
Let's start with a free discovery call. I'll review your requirements, discuss possible approaches, identify potential challenges, and provide honest feedback before any commitment.
If I'm not the right person for your project, I'll tell you upfront.
I typically respond within a few hours.
Best regards,
Brijesh
Brijesh V.
has worked
.
Associated with
Benzatine Infotech
$1M+
earned
$25/hr
72%
Job Success
$10K+ earned
Offers consultations
Start of list.
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Helping startups, businesses, and growing brands build modern, scalable, and user-friendly mobile applications using React Native and Flutter.
👉🏻 I specialize in:
✔ Cross-Platform Mobile App Development
✔ React Native Development
✔ Flutter App Development
✔ Mobile UI/UX Design
✔ Figma to Mobile App
✔ Firebase Integration
✔ API Integration
✔ App Performance Optimization
✔ Android & iOS App Development
✔ MVP Development for Startups
I focus on building mobile apps that are not only visually polished but also fast, scalable, and easy for users to navigate.
From idea to deployment, I help clients transform concepts into high-quality mobile experiences with clean architecture, smooth performance, and modern UI/UX standards.
👉🏻 What you can expect while working with me:
• Clean and maintainable code
• Responsive communication
• Attention to UI/UX details
• Scalable app architecture
• On-time delivery
• Long-term support and collaboration
👉🏻 Whether you need:
• a Flutter app,
• a React Native application,
• a mobile UI redesign,
• MVP development,
• or complete Android/iOS app development,
I can help you build a modern mobile product focused on performance, usability, and business growth.
Let’s create an app your users will love.
Priyaranjan K.
has worked
.
Associated with
Immanent Solutions
$30K+
earned
$15/hr
99%
Job Success
$100K+ earned
Start of list.
End of list.
I specialize in developing advanced mobile applications across iOS, Android, Flutter, and React Native platforms, with a focus on integrating cutting-edge AI technologies.
My experience includes building intuitive, AI-driven apps that enhance user experiences and deliver personalized features.
𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐂𝐨𝐫𝐞 𝐒𝐤𝐢𝐥𝐥𝐬:
AI Integration: Implementing machine learning models for predictive analytics, personalization, and smarter user interactions.
Cross-Platform Development: Proficient in Flutter and React Native to build efficient, high-performance apps for iOS and Android.
iOS & Android App Development: Expertise in native app development using Swift, Kotlin, and Java, with a focus on AI-based functionalities.
Cloud Services & Backend Integration: Utilizing platforms like Firebase, AWS, and Parse to seamlessly integrate AI-powered backend systems.
Machine Learning: Integrating pre-trained AI models or developing custom solutions for mobile apps.
Voice & Image Recognition: Leveraging AI tools such as OpenCV and TensorFlow for advanced image and voice processing capabilities.
Natural Language Processing: Integrating chatbots and AI-driven communication systems for enhanced customer interaction.
𝐏𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐢𝐧 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐫𝐞𝐚𝐥-𝐭𝐢𝐦𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐮𝐬𝐢𝐧𝐠 𝐒𝐮𝐩𝐚𝐛𝐚𝐬𝐞 𝐟𝐨𝐫 𝐛𝐚𝐜𝐤𝐞𝐧𝐝, 𝐚𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧, 𝐚𝐧𝐝 𝐝𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐦𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭.
𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞:
AI-driven social networking apps
AI-enhanced messaging apps
On-Demand APPS
Real Estate Solutions
Online Learning Platforms
CRM Software Development
Custom Enterprise Solutions
Payment Processing Solutions
Social Media & Dating APPS
Retail & E-Commerce APPS
Voice assistant and chatbot integration
HealthCare, Fitness & Finance Solutions
Enterprise Portals & Identity Access Management
E-commerce apps with personalized recommendations
AR/VR integration using AI for improved user experiences
My approach combines expert mobile app development with the integration of artificial intelligence to create powerful, user-centric solutions. Let’s collaborate to build smart, intuitive apps that transform user experiences with AI at their core.
Ravi C.
has worked
.
Associated with
Sunfocus Solutions Private Limited
$5M+
earned
$14.5/hr
96%
Job Success
$100K+ earned
Available now
Start of list.
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👋 Hello, I am Sukhdeep S, a Senior Mobile App Developer with 10+ years of experience building reliable, scalable, and user-friendly mobile applications for iOS, Android, and cross-platform environments.
I specialize in React Native, Flutter, native iOS, native Android, React.js, Node.js, APIs, Firebase, cloud integrations, and admin panel development. I help startups, agencies, and businesses turn mobile app ideas into polished, production-ready applications with clean user flows, strong backend connectivity, and smooth performance.
My focus is not just writing code. I build mobile apps that are practical, easy to use, secure, and ready for real users.
📱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
✔ React Native app development
✔ Flutter app development
✔ Native iOS app development
✔ Native Android app development
✔ Hybrid and cross-platform mobile apps
✔ App redesign and feature upgrades
✔ Mobile app bug fixing and optimization
✔ App Store and Google Play deployment
✔ Mobile UI implementation from Figma
I can build new apps from scratch, improve existing apps, add new features, fix performance issues, or connect your app with backend systems and third-party services.
🧩 𝗧𝘆𝗽𝗲𝘀 𝗢𝗳 𝗔𝗽𝗽𝘀 𝗜 𝗖𝗮𝗻 𝗕𝘂𝗶𝗹𝗱
✔ On-demand service apps
✔ Delivery and logistics apps
✔ eCommerce mobile apps
✔ Booking and appointment apps
✔ Healthcare and telemedicine apps
✔ Fitness and wellness apps
✔ Learning and EdTech apps
✔ Real estate apps
✔ Social networking apps
✔ Marketplace apps
✔ FinTech and wallet apps
✔ Restaurant and food ordering apps
✔ Taxi and ride-booking apps
✔ Event and ticketing apps
✔ CRM and field staff apps
✔ Customer support apps
✔ Business automation apps
Whether your app is for customers, employees, drivers, vendors, admins, or service providers, I can help design and build the right mobile workflow.
⚛️ 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 & 𝗙𝗹𝘂𝘁𝘁𝗲𝗿
✔ Cross-platform iOS and Android apps
✔ Reusable components and clean architecture
✔ Navigation, tabs, drawers, and deep linking
✔ API integration with mobile apps
✔ Redux, Context API, Provider, Bloc, Riverpod
✔ Push notifications
✔ Firebase integration
✔ Offline storage and local database
✔ Image, video, file, and document upload
✔ Camera, gallery, location, maps, and device features
✔ Performance optimization for mobile apps
I build apps that feel smooth, look professional, and work properly across different screen sizes and devices.
🍏 𝗡𝗮𝘁𝗶𝘃𝗲 𝗶𝗢𝗦 & 𝗔𝗻𝗱𝗿𝗼𝗶𝗱
✔ Swift and SwiftUI for iOS
✔ Kotlin and Java for Android
✔ Native SDK integration
✔ App permissions and device APIs
✔ In-app purchases and subscriptions
✔ App Store and Play Store compliance
✔ Native performance improvements
✔ Crash fixing and app stability work
When a project needs platform-specific features or deeper native control, I can work directly with iOS and Android technologies.
🟢 𝗕𝗮𝗰𝗸𝗲𝗻𝗱, 𝗔𝗣𝗜 & 𝗔𝗱𝗺𝗶𝗻 𝗣𝗮𝗻𝗲𝗹 𝗦𝘂𝗽𝗽𝗼𝗿𝘁
✔ Node.js and Express.js backend development
✔ REST API development and integration
✔ Firebase backend and Firestore
✔ MongoDB, MySQL, PostgreSQL
✔ Authentication and user roles
✔ Admin panels using React.js and Next.js
✔ Dashboard, reporting, and user management
✔ Payment gateway integration
✔ Stripe, PayPal, Razorpay, Apple Pay, Google Pay
✔ Email, SMS, and notification workflows
✔ Third-party API integrations
I can build both the mobile app and the admin system needed to manage users, orders, bookings, payments, reports, content, notifications, and business operations.
🔧 𝗞𝗲𝘆 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀 𝗜 𝗛𝗮𝗻𝗱𝗹𝗲
✔ Login, signup, OTP, and social login
✔ User profiles and role-based access
✔ Booking and scheduling workflows
✔ Real-time chat and notifications
✔ GPS tracking and maps
✔ Payment and subscription systems
✔ Order and delivery management
✔ Ratings and reviews
✔ Wallet and transaction history
✔ File upload and media handling
✔ Analytics and reporting dashboards
✔ Multi-language app support
✔ App maintenance and version updates
🏆 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲
✔ 10+ years of mobile and web application experience
✔ Strong knowledge of React Native, Flutter, iOS, and Android
✔ Ability to handle app, backend, APIs, and admin panel workflows
✔ Clean, maintainable, and scalable code
✔ Practical understanding of real business apps
✔ Clear communication and reliable updates
✔ Focus on performance, security, and user experience
✔ Support for launch, testing, and post-launch improvements
📩 𝗟𝗲𝘁'𝘀 𝗪𝗼𝗿𝗸 𝗧𝗼𝗴𝗲𝘁𝗵𝗲𝗿
If you need a reliable mobile app developer for React Native, Flutter, iOS, Android, backend APIs, or admin panels, I would be happy to help.
Send me your app idea, design, requirement document, or existing app details, and I will suggest the best development approach.
𝐊𝐞𝐲 𝐒𝐤𝐢𝐥𝐥𝐬: React Native Developer, Flutter Developer, Mobile App Developer, iOS App Developer, Android App Developer, Swift, SwiftUI, Kotlin, React.js, Next.js, Node.js, Firebase, REST API, MongoDB, MySQL, PostgreSQL.
Sukhdeep S.
has worked
.
Associated with
Deftsoft
$10M+
earned
$24.99/hr
100%
Job Success
$1M+ earned
Available now
Offers consultations
Start of list.
End of list.
🏆 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 | 𝟵+ 𝗬𝗲𝗮𝗿𝘀 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 🚀
✅ $𝟭𝟱𝗠+ 𝗥𝗮𝗶𝘀𝗲𝗱 𝗯𝘆 𝗺𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 | 𝟭𝟬𝗠+ 𝗔𝗽𝗽 𝗗𝗼𝘄𝗻𝗹𝗼𝗮𝗱𝘀 🚀
✅ 𝗧𝗼𝗽 𝟭% 𝗨𝗽𝘄𝗼𝗿𝗸 𝗙𝗿𝗲𝗲𝗹𝗮𝗻𝗰𝗲𝗿 | $𝟭𝗠+ 𝗘𝗮𝗿𝗻𝗲𝗱 🏆
I help startups, founders, and businesses build scalable Web Applications, SaaS Platforms, AI Solutions, and Mobile Apps that are designed to launch fast, grow efficiently, and deliver real business results.
Whether you need an MVP, SaaS platform, CRM, AI-powered application, dashboard, marketplace, or mobile app, I can take your product from idea to deployment.
𝗪𝗵𝘆 4𝟬𝟬+ 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝘄𝗼𝗿𝗹𝗱𝘄𝗶𝗱𝗲 𝗧𝗿𝘂𝘀𝘁 𝗠𝗲
✅ $15M+ Client Funding
✅ $10M+ App Downloads
✅ $1M+ Upwork Achiever
✅ 400+ Apps and 50+ Websites launched
✅ Top Rated Plus (Top 3% on Upwork)
✅ 100% Job Success Score
✅ 35,000+ Hours Worked
✅ 400+ Projects Delivered
✅ 86% Long-Term Repeat Clients
✅ End-to-End Development Partner
✅ Fluent English Communication
𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
• Full Stack Development (React.js, Next.js, Node.js, TypeScript)
• SaaS Platforms & Business Applications
• AI & ChatGPT Integrations
• CRM, Dashboards & Admin Panels
• Mobile Apps (iOS, Android, Flutter, React Native)
• API Integrations & Automation
• AWS, Firebase, Supabase & Cloud Infrastructure
𝗜𝗱𝗲𝗮𝗹 𝗖𝗹𝗶𝗲𝗻𝘁𝘀
🚀 Startups building MVPs and SaaS products
📈 Businesses scaling existing platforms
🤖 Companies integrating AI into their products
📱 Brands launching mobile and web applications
🔑 𝗞𝗘𝗬 𝗙𝗘𝗔𝗧𝗨𝗥𝗘𝗦 & 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗜𝗢𝗡𝗦
✔️ Secure User Authentication & Social Logins (Google, Apple, Facebook, Twitter, LinkedIn)
✔️ Payment Gateways: Stripe, PayPal, Razorpay, Apple Pay, Plaid, In-App Purchases & Subscriptions
✔️ Real-Time Chat & Messaging (Twilio API, Firebase Chat)
✔️ Push Notifications | Video Calling | WebRTC
✔️ Maps & Geolocation: MapKit, Mapbox, Google Maps
✔️ Health & Fitness: HealthKit, Google Fit
✔️ Analytics: Firebase Analytics, Mixpanel, Crashlytics, Google Analytics
✔️ QA & Testing: Unit Testing, Integration Testing, Regression Testing
✔️ Project Tools: Git, GitHub, Bitbucket, JIRA, Trello, Asana
🌍𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 𝗦𝗘𝗥𝗩𝗘𝗗
E-Commerce | Fintech & Banking | Health & Fitness | Social Networking & Dating | On-Demand Services | Food Delivery | Ride Booking | Real Estate | SaaS | Education & E-Learning | Media & Entertainment | Streaming & Audio | Healthcare | Logistics & Transport | Marketplace | Travel & Navigation | Wellness & Coaching | Legal Services | Event & Booking | Automotive | Fashion & Lifestyle | Hospitality
🔍 KEYWORDS
Mobile App Developer · iOS App Developer · Android App Developer · Flutter Developer · React Native Developer · FlutterFlow Developer · Swift Developer · Kotlin Developer · Full Stack Developer · Web Application Developer · SaaS Developer · MERN Stack Developer · Firebase Developer · AWS Developer · Node.js Developer · React.js Developer · Next.js Developer · NestJS Developer, TypeScript Developer. JavaScript Developer · API Integration · ChatGPT Integration · AI App Developer. React Developer · Lovable.AI · Bolt.new · No-Code Developer · CRM Developer · Low-Code Developer · FlutterFlow · Bubble · Webflow · Dashboard Developer · WordPress Developer · WooCommerce · Shopify · Strapi · Contentful · CMS Development · Plugin Development · Theme Development · Fintech App Developer · E-Commerce App Developer · Dating App Developer · Ride Booking App Developer · On-Demand App Developer · Cross-Platform App Developer · RESTful API · GraphQL · TypeScript · Supabase · Payment Gateway Integration · Vercel Developer · In-App Purchases · Push Notifications · HealthKit · MapKit · Mapbox · Alamofire · Twilio · Google Analytics · QA Testing · Unit Testing · ERP Developer · AI Web Application Developer · AWS Developer · Regression Testing · Figma · UI/UX Design
If you're looking for a development partner who values quality, communication, and long-term success, click the Invite or Message button and let's discuss your project.
Priyank G.
has worked
.
$28/hr
100%
Job Success
$4K+ earned
Available now
Offers consultations
Start of list.
End of list.
❗ 𝐍𝐨𝐭 𝐚𝐧 𝐀𝐈-𝐠𝐞𝐧𝐞𝐫𝐚𝐭𝐞𝐝 𝐔𝐩𝐰𝐨𝐫𝐤 𝐩𝐫𝐨𝐟𝐢𝐥𝐞. 𝐑𝐞𝐚𝐥 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫𝐬. 𝐑𝐞𝐚𝐥 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬. 𝐑𝐞𝐚𝐥 𝐜𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 ❗
🏆 Top 10% Rated Plus Mobile App Developer | 100% Job Success | 🚀 8+ Years of Experience
📱 iOS & Android App Development | Kotlin | Swift | React Native | Flutter | AI | Full Stack
I’m a Mobile App Developer with 8+ years of experience delivering high-quality Mobile App Development projects for iOS and Android. I build scalable, secure, and user-friendly applications that solve real business problems.
As a Full Stack Developer, I handle both frontend and backend, ensuring that every stage of Mobile App Development — from idea to release — is smooth, structured, and efficient. My approach combines strong engineering with thoughtful Mobile App Design to create products users actually enjoy.
I’ve worked with startups and established businesses, helping them launch reliable apps with strong performance and clear growth potential.
🎯 What I bring:
✔️ 8+ years of experience as a Mobile App Developer in Mobile App Development (iOS & Android)
✔️ Strong expertise in Swift and Kotlin for native Mobile App Development
✔️ Experience as a Full Stack Developer working with backend systems and APIs
✔️ Cross-platform experience (React Native, Flutter) when needed
✔️ Full-cycle Mobile App Development from idea to release
✔️ Clean architecture and scalable solutions
✔️ Performance optimization and long-term support
✔️ Experience building AI-powered features with a focus on Mobile App Design
📱 Types of apps I build:
• Taxi & Transportation apps with real-time tracking and intuitive Mobile App Design
• Booking & Scheduling platforms with scalable backend (Full Stack Developer approach)
• Fitness & Health apps with wearable integrations
• AI-powered apps (chatbots, automation tools)
• Fintech & payment solutions with secure architecture
• E-commerce apps with conversion-focused Mobile App Design
• Social platforms with messaging and real-time features
• Streaming & content apps built through robust Mobile App Development
• SaaS products, dashboards, and business tools
• IoT & wearable integrations (including Apple Watch)
🚀 My approach:
As a Mobile App Developer and Full Stack Developer, I focus on delivering Mobile App Development solutions that are reliable and scalable:
▪ Clear architecture and structured development process
▪ Clean, maintainable code
▪ Strong focus on user experience and Mobile App Design
▪ Solutions built for long-term growth
🛠 Tech Stack & Expertise
📱 Mobile Development
Swift (UIKit, SwiftUI), Kotlin (Jetpack Compose, Android SDK)
React Native, Flutter
⚙️ Architecture & Patterns
MVVM, MVI, Clean Architecture, SOLID
Modular and scalable app structure
🌐 Backend & APIs
REST APIs, GraphQL
Firebase (Auth, Firestore, Cloud Functions)
Supabase
Custom backend systems
💳 Payments & Monetization
Stripe, in-app purchases (Apple / Google)
Subscriptions and secure payment flows
🔔 Real-time & Core Features
Push Notifications (FCM, APNs)
Real-time systems, chat, WebSockets
🔐 Authentication & Security
OAuth, JWT, social logins
Secure storage and data protection
📊 Performance & Optimization
App performance tuning
Network optimization, offline-first approach
🎨 UI/UX & Product
User flows, wireframes, prototyping
Pixel-perfect implementation and strong Mobile App Design
🔌 Integrations
Maps, geolocation, analytics tools
Third-party SDKs and APIs
📩 If you’re looking for a reliable Mobile App Developer who can deliver end-to-end Mobile App Development as a Full Stack Developer — let’s connect and build something great.
Hanna R.
Associated with
Natife Mobile
$700K+
earned
$22/hr
100%
Job Success
$60K+ earned
Start of list.
End of list.
I have 18+ years of professional experience in Mobile App Development. I have successfully executed numerous projects globally with different clients in various countries. As a Developer, I strongly appreciate optimum, clean, well-structured & communicative code.
I have extensive experience in following technology & Skills.
- Flutter / Dart
- Android / Kotlin
- Firebase / MySql / SQLite
- MobX / BLOC state management
- Google maps
- Google, Facebook, Email, Twitter, Github, Phone, Apple authentications
- Crashlytics, Google Analytics, Admob, Push notifications
- Custom widgets and complex animations
- In-App purchase, Stripe
- Figma, Sketch, Adobe XD resource extraction
- BDD, TDD
Thanks a million for viewing my profile.
Manish P.
has worked
.
Associated with
Concetto Labs
$200K+
earned
$30/hr
100%
Job Success
$200K+ earned
Available now
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End of list.
I've built 50+ mobile apps, custom software, and web platforms on Upwork: marketplaces, dating apps, healthcare tools, and Twilio/Stripe integrations with a 100% Job Success Score and clients who keep hiring me back for the next phase.
Most of my work falls into four buckets: marketplace/on-demand platforms, social and dating apps with real-time features, custom software built around a specific business process, and backend integrations (Twilio, Stripe) that other developers get stuck on.
𝐀 𝐟𝐞𝐰 𝐬𝐩𝐞𝐜𝐢𝐟𝐢𝐜𝐬:
I built a job marketplace from scratch with separate seeker, employer, and admin roles plus live chat. I've shipped two dating apps, including one with a custom matching mechanic. I built a customer-tracking platform and an internal tool for managing zone/location data on a map, the kind of purpose-built software that isn't a template, it's built around how a specific business actually operates.
I connected a Twilio BYOC SIP trunk to an international carrier's number, working directly with the telecom provider, not just the Twilio dashboard. I've maintained a pet-sharing app (Dogshare) across multiple engagements, including converting it to a two-language build. And I built a healthcare diagnostic app (Hearty Scan) plus its Android counterpart for a client who came back for round two.
𝐖𝐡𝐞𝐫𝐞 𝐈 𝐟𝐢𝐭:
- Mobile: Flutter, React Native, Swift, SwiftUI, Kotlin, native and cross-platform
- Backend & custom software: PHP, Python, Node.js
- Integrations: Twilio (including BYOC/SIP), Stripe, OpenSearch
- Data/infra: Firebase, MongoDB, AWS
𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐫𝐞𝐡𝐢𝐫𝐞 𝐦𝐞:
I scope before I code , you'll know what you're getting and roughly when, before I start. When something in the spec doesn't add up, I flag it early instead of building around it silently. And I hand off documented code, not a black box, so you're not stuck coming back to me for every small change.
If you're building custom software, a marketplace, a healthcare or on-demand app, or need someone who can actually finish a Twilio or Stripe integration without three follow-up calls" 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤 𝐚𝐛𝐨𝐮𝐭 𝐰𝐡𝐚𝐭 𝐲𝐨𝐮'𝐫𝐞 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠."
Gary S.
has worked
.
Associated with
NetSet Software Solutions
$2M+
earned
$35/hr
96%
Job Success
$20K+ earned
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There was once a visionary entrepreneur who saw a gap in the market and dreamed of creating something extraordinary. The concept was brilliant. But the only problem? They didn’t know how to code. That’s where I come in.
As a mobile app developer, I bridge the gap between your big ideas and the technology needed to make them real. With a focus on understanding your goals and crafting solutions that align with your vision, I’m here to help you with mobile app development that’s not only functional but also unforgettable. Let’s take your mobile app development idea from concept to reality—together.
🌟𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿:
- Cross-platform Mobile App, Web App, iOS & Android App Development
- Customized admin panel dashboard
- BRD, SRS, System Design & DB Design
- UI/UX design and prototype for the Mobile app
- Backend Development and API Integrations
- App testing and publishing to App Store and Play Store
💡 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸𝘀:
📱 Mobile Apps: Flutter (Dart) • React native (JavaScript) • Swift • Kotlin
🌐 Web Apps: React.js • Next.js • Angular
💻 Backend & Databases: Node.js • Express.js • PHP • Laravel • MongoDB • MySQL • PostgresQL
🔗API Integrations: RESTful • GraphQL APIs
🤖 AI & Automation: AI Integrations • AI Chatbot & AI Agents
🎨 UX/UI Design: Figma
🌍 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈’𝐯𝐞 𝐁𝐮𝐢𝐥𝐭 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝐬 𝐅𝐨𝐫:
🏥 Healthcare & Fitness
📚 Education & E-learning
🛒 E-commerce
💰 Finance & Fintech
✈️ Travel & Hospitality
📱 Social Networking
🍔 On-Demand Services (e.g., food delivery, ride-sharing)
🎬 Entertainment & Media
🏠 Real Estate
👗 Retail & Fashion
💼 Enterprise Solutions
🤝 𝗪𝗵𝘆 𝗛𝗶𝗿𝗲 𝗠𝗲 𝗳𝗼𝗿 𝗬𝗼𝘂𝗿 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗣𝗿𝗼𝗷𝗲𝗰𝘁?
1. Ensure BRD, SRS, System Design & DB Design to make sure they align with your business plan.
2. Teamwork to bring excellence on your mobile app development project
3. Long-term partnership and support to ensure scalability and continuous fixing
📞☎️ 𝐎𝐮𝐫 𝐟𝐢𝐫𝐬𝐭 𝐜𝐚𝐥𝐥?
Whether you're building from the ground up or refining an existing product, I’ll provide you with a clear, step-by-step plan to move forward with confidence.
👉 Message me now, and let’s schedule a free consultation to chart the path to your mobile app development success.
Key Skills & Proficiencies: Mobile App Development (iOS & Android), Cross-Platform Development (Flutter, React Native), Native Development (Swift, Kotlin, Java), Backend Development (Node.js, Express.js, PHP, Firebase), Frontend Development (React, TypeScript, HTML, CSS, Tailwind CSS), API Development & Integration (REST, GraphQL, Firebase), UI/UX Design (Figma, MUI, Ant Design), Cloud Services (AWS, GCP, Azure), Database Management (MySQL, MongoDB, PostgreSQL), AI & Automation (Chatbots, OpenAI API, AI Integrations), Mobile App Deployment (App Store, Google Play), App Maintenance & Updates, Security & Compliance (HIPAA, GDPR), Testing (Unit Tests, Pytest)
Md Abdullah A.
has worked
.
$12/hr
100%
Job Success
$200K+ earned
Available now
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End of list.
🏆Top Rated Plus Mobile App Expert🏆
I'm a full-stack mobile app developer with 5+ years of experience building high-performance, cross-platform and native mobile applications for iOS and Android. Whether you need a pixel-perfect Flutter app, a React Native solution, or a pure native Swift/Kotlin experience I deliver clean, scalable, production-ready code.
What I Build:
• AI-Powered Mobile Apps Chatbots, voice assistants, smart recommendation engines, on-device ML, real-time AI features using OpenAI, Claude, and Gemini APIs all running beautifully on mobile
• Cross-platform apps with Flutter (Dart) & React Native (JavaScript/TypeScript)
• AI Backend Integration -LLM pipelines, vector databases, embedding-based search, RAG architectures - wired seamlessly into your mobile frontend
• Native iOS apps with Swift, SwiftUI, UIKit, and Xcode
• Native Android apps with Kotlin, Jetpack Compose, and Android Studio
• REST API & GraphQL integration, Firebase, Supabase, AWS Amplify
• App Store & Google Play publishing, CI/CD with Fastlane, Bitrise, GitHub Actions
Core Skills & Technologies:
Flutter • Dart • React Native • Expo • Swift • SwiftUI • UIKit • Kotlin • Jetpack Compose • Android SDK • iOS SDK • Firebase • Firestore • Push Notifications (FCN/APNs) • Redux • MobX • Provider • Bloc • GetX • SQLite • Realm • Hive • REST APIs • GraphQL • WebSockets • In-App Purchases • Apple Pay • Google Pay • Stripe Integration • ARKit • CoreML • Google Maps SDK • App Store Optimization (ASO)
Industries Served:
FinTech | eCommerce | HealthTech | EdTech | Social Networking | On-Demand Delivery | Real Estate | SaaS
Why Clients Choose Me:
• Clean architecture (MVVM, Clean Architecture, BLoC pattern)
• 100% on-time delivery with clear communication
• Full ownership from wireframe to App Store/Play Store launch
• Bug-free, performance-optimized, and maintainable code
• Post-launch support and maintenance available
Whether you're a startup building your MVP or an enterprise scaling your mobile product, I'm here to turn your idea into a flawless app experience.
Let's build something great message me today!
Satinder Pal S.
has worked
.
Associated with
Geek Informatic & Technologies Private Limited
$2M+
earned