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Bal D.
$25/hr
100% Job Success
$100K+ earned
Available now
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A Full-Stack Developer specializing in building scalable web applications, mobile apps, SaaS & custom platforms. Whether you need an MVP, a customer facing platform, an internal business application, or an AI-powered workflow, I can take your project from concept to launch. 🔹 What I Build • SaaS Platforms • Custom Web Applications • Mobile Apps (iOS & Android) • Startup MVPs & Product Prototypes • Enterprise Software Solutions • Healthcare & Telemedicine Platforms • Education & LMS Applications • Travel, eCommerce & Marketplace Platforms • Food Delivery & On-Demand Service Apps • Taxi Booking & Logistics Applications • Social Networking & Community Platforms • CRM, ERP & Business Automation Systems 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 : React.js, Next.js, Vue.js, Nuxt.js, Angular, TypeScript, Tailwind CSS, React Native, Flutter, Node.js, Express.js, Python, FastAPI, Django, PHP, Laravel, PostgreSQL, MongoDB, MySQL, Firebase, Supabase, AWS, Google Cloud, Docker, Kubernetes, CI/CD, Vercel, Third-Party API Integrations, Stripe & PayPal Payment Systems, OAuth, JWT & SSO Authentication, Let's build something great together.
Trigma
Associated with
Trigma
$2M+
earned
Akshay S.
$14/hr
100% Job Success
$40K+ earned
Available now
Offers consultations
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Hi, I’m Akshay Solanki 👋 I’m a React Native Developer with 8+ years of experience building mobile apps for iOS and Android. I mainly help startups and businesses: ✦ Build apps from scratch ✦ Improve existing apps ✦ Fix bugs and performance issues ✦ Add new features and integrations A lot of clients come to me when their app is slow, unstable, or the previous developer couldn’t complete the work properly. That’s usually where I step in. What I can help you with Mobile App Development → React Native (CLI & Expo) → Cross-platform apps for iOS & Android → Modern and user-friendly UI → App optimization and bug fixing → App Store & Play Store deployment → Authentication & user management Full Stack Development → Node.js, ExpressJS, NestJS → REST APIs & GraphQL → Third-party API integrations → MongoDB, PostgreSQL, MySQL → Firebase & Supabase → AWS / Azure / Google Cloud AI Features → OpenAI API integration → AI chatbots → Smart automation features → AI-powered mobile apps Industries I’ve worked with ✦ E-commerce & Marketplace ✦ Healthcare & Wellness ✦ FinTech & Payment Apps ✦ EdTech Platforms ✦ Logistics & Delivery ✦ SaaS & Startup MVPs ✦ Booking & Service Apps ✦ Social Networking Apps ✦ Fitness & Lifestyle Apps How I usually work I like to keep things simple and clear. 1. Understand your idea and requirements 2. Suggest the best approach 3. Build clean and scalable solutions 4. Test everything properly 5. Launch and provide ongoing support No over-promising. No confusion. Just honest and reliable work. Skills & Technologies Mobile ✦ React Native ✦ React Native CLI ✦ Expo ✦ iOS & Android Development Frontend ✦ React.js, Next.js ✦ JavaScript, TypeScript ✦ HTML5, CSS3 ✦ Tailwind CSS, Bootstrap Backend ✦ Node.js, ExpressJS, NestJS ✦ REST APIs & GraphQL Database ✦ MongoDB ✦ PostgreSQL ✦ MySQL ✦ Firebase, Supabase Cloud & DevOps ✦ AWS, Azure, Google Cloud ✦ Docker, Kubernetes ✦ CI/CD Pipelines ✦ Git, GitHub, GitLab Why clients work with me → Clear communication → Clean and maintainable code → Stable and scalable apps → On-time delivery → Long-term support Let’s keep it simple If you have an app idea or need help improving an existing app, feel free to send me a message. We can discuss your project and see if I’m the right fit 👍 ✅ Keywords React Native Developer | React Native Expert | React Native App Developer | React Native Mobile App Developer | Mobile App Developer | Mobile Application Developer | Cross Platform App Developer | Hybrid App Developer | React Native CLI | React Native Expo | Expo Developer | iOS Developer | Android Developer | iOS App Developer | Android App Developer | Mobile UI Developer | Mobile UI/UX Developer | App Performance Optimization | Mobile App Optimization | App Maintenance | App Bug Fixing | App Deployment | Play Store Deployment | App Store Deployment | Full Stack Developer | Full Stack Mobile Developer | MERN Stack Developer | Frontend Developer | Backend Developer | Node.js Developer | Express.js Developer | NestJS Developer | React.js Developer | Next.js Developer | JavaScript Developer | TypeScript Developer | HTML5 | CSS3 | Tailwind CSS | Bootstrap | REST API Developer | GraphQL Developer | API Integration | Third Party API Integration | Authentication System | JWT Authentication | OAuth Integration | MongoDB | PostgreSQL | MySQL | Firebase | Supabase | SQL Database | NoSQL Database | Database Design | Database Management | AWS | Amazon Web Services | Azure Cloud | Google Cloud Platform | Docker | Kubernetes | CI/CD | CI/CD Pipeline | Git | GitHub | GitLab | Cloud Deployment | AI Mobile App Developer | OpenAI API | ChatGPT Integration | AI Chatbot Developer | Generative AI | AI Automation | AI Integration | Startup MVP Developer | SaaS Application Developer | Scalable App Development | Marketplace App Developer | E-commerce App Developer | Booking App Developer | Delivery App Developer | FinTech App Developer | Healthcare App Developer | EdTech App Developer | Social Networking App Developer | Real Time App Developer | Firebase Realtime Database | 𝐒𝐨𝐜𝐤𝐞𝐭.𝐢𝐨 Developer | Push Notification Integration | Payment Gateway Integration | Stripe Integration | Razorpay Integration | PayPal Integration | Google Maps Integration | GPS Tracking App Developer | Twilio API Integration | WebRTC Developer | Agile Development | Clean Architecture | Redux | Context API | MVVM Architecture | Scalable Mobile Apps | Secure Mobile App Development | AI Powered Mobile Apps | Cloud Based Mobile Apps | React Native Firebase | API Development | App Scaling | Mobile Backend Developer | Responsive Mobile Apps | End-to-End App Development | Startup App Developer | SaaS Developer | MVP App Development | Mobile Product Development | User Authentication | Mobile App Testing | Mobile App Support | Performance Tuning | Real Time Chat App Developer | Notification System Integration | AI Chatbot Integration | OpenAI ChatGPT Apps | Enterprise Mobile Apps | Business App Developer
Akshay S. has worked .
Ayan S.
$20/hr
98% Job Success
$5M+ earned
Available now
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✮ 18+ years in IT. ✮ Worked with several Fortune 500 Companies ✮ Experienced Full Stack Developer ✮ Worked with British Telecom, AT&T, Google, IBM, etc. ✮ 100% refund policy. ✮ Available 18 hours a day. Prior to this I have worked with several fortunes 500 companies which include British Telecom, AT&T, Google, IBM before start my own freelancing work. Having more than 18+ years rich knowledge in IT and handled more than 3000+ live projects I can guarantee that I will add value to your projects. If I can’t deliver anything I won’t charge for my time, and in this world nobody wants to work for free. [ What I can provide ] ✮ Angular JS 6 Development ✮ Node JS Development ✮ Python Development ✮ React JS ✮ Meteor JS ✮ Express JS / Sails JS ✮ Vue JS ✮ TypeScript ✮ AngularDart ✮ Dart ✮ Mobile App ✮ IOS Development ✮ Android Development ✮ Swift 4 ✮ Java 8 ✮ Objective C ✮ Google Kotlin ✮ React Native ✮ Google Flutter ✮ E-commerce Development ✮ Magento Development ✮ Website development ✮ Mobile Back end development ✮ Graphic design + UI & UX implementation ✮ Consulting in mobile app development ✮ Startup Development I am having strong expertise in database, here is few in the list, ✮ MS SQL ✮ Mongo DB ✮ My SQL ✮ Maria DB ✮ SQL Lite ✮ Amazon Dynamo DB ✮ Amazon Aurora Expertise in Blockchain: ✮ Smart Contracts development using Solidity ✮ Subgraph indexing using the graph ✮ Tokenomics ✮ Vesting ✮ Web3 integration ✮ In-depth knowledge of ERC20 & ERC721 Smart Contracts ✮ NFT contract ✮ Token/ coin Contract ✮ Defi EXchange ✮ BEP1155 ✮ Hardhat ✮ NFT minting Also I am comfortable with Cloud Computing using Amazon AWS, GCloud, MS Azure. Here is my system programming exprience, ✮ Docker ✮ Kubernetes ✮ Jenkins ✮ Google App Engine ✮ Micro Services ✮ Amazon Elastic Container Services ✮ Amazon Elastic Beanstalk ✮ Amazon EBS ✮ Amazon AWS CLI ✮ Elastic Cache ✮ Mem Cache ✮ Redis Cache Also I am comfortable with Analytical information or Search engine development. Here is my informations below, ✮ Apache Solr Search ✮ Amazon Elastic Search ✮ Amazon Red Shift ✮ Kibana ✮ Lucene ✮ Sphinx ✮ Xapian [ My Domain Experience ] ✮ On-Demand Service app ✮ SAAS ✮ Uber-like app ✮ Food delivery website and app ✮ Restaurant website and app ✮ Travel website and app ✮ Social network website and app ✮ Upwork like service marketplace website and app. ✮ Crowdfunding website and app ✮ Service provider finder app ✮ GPS apps ✮ Product selling website and app ✮ Event ticket-selling website ✮ Daily Deal website and app ✮ E-commerce website and app ✮ Dating website and apps ✮ Rideshare apps Also I am comfortable with several open source system, like follows, ✮ Magento ✮ WordPress ✮ Drupal I love my job as working with different clients has given me the opportunity of being a part of so many wonderful ideas and journeys. My approach to work is to go beyond the job description and focus on building a long lasting relationship with all clients.
Ayan S. has worked .
Webskitters LLC - CMMI Level 3- National Award Winning Company
Associated with
Webskitters LLC - CMMI Level 3- National Award Winning Company
$7M+
earned
Aleksandr V.
$30/hr
100% Job Success
$600K+ earned
Available now
Offers consultations
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🏆 Top Rated Plus mobile and AI app developer with 15+ years building iOS, Android, Flutter, and React Native apps. I specialize in AI integrations, LLM agents, and automation, with CTO-level experience leading mobile and SaaS product builds. Hi, I'm Aleksandr Vdovichenko, a senior mobile app developer and AI engineer who helps startups, scale-ups, and product teams ship reliable iOS and Android apps and AI-powered SaaS products. I work across native iOS development with Swift and SwiftUI, native Android development with Kotlin, and cross-platform mobile development with Flutter and React Native, and I integrate AI deeply into the products I build. 📱 Mobile App Development I build native iOS apps with Swift and SwiftUI for iPhone, iPad, and Mac, and native Android apps with Kotlin for phones and tablets, as well as cross-platform Flutter and React Native apps that run on both. I take MVPs from idea to App Store and Google Play release, and I handle app refactors, performance optimization, and stability reviews on existing products. My builds routinely include push notifications, deep links, in-app purchases, subscriptions and payments, along with Bluetooth, Apple HealthKit, Google Fit, camera, AR, and offline-first features. On the backend side I handle API integration with GraphQL and REST, Firebase, Supabase, and custom backends. 🤖 AI & Automation I build LLM-powered apps on the OpenAI, Claude, and Anthropic APIs, and I develop autonomous AI agents with multi-step reasoning workflows rather than simple chatbots. I use Claude Code for production AI logic and backend orchestration, and I integrate AI into existing iOS, Android, and SaaS products. My work here includes Whisper-based voice features, OCR, computer vision, and pose estimation, AI automation pipelines with n8n, Make, and custom serverless workflows, and retrieval-augmented generation with embeddings, vector databases, and intelligent search across fitness, health, fintech, and social apps. ⚡️ No-Code & Low-Code Speed For founders who need to validate fast, I combine native skills with modern no-code and low-code stacks. I build full SaaS platforms in Bubble, cross-platform mobile MVPs in FlutterFlow, and rapid prototypes with Lovable, Replit, Bolt.new, and v0. I use Webflow for marketing sites and scalable web apps, Adalo, Glide, and Airtable for lightweight no-code products, Capacitor and Expo for hybrid deployment, and Supabase, Firebase, and Vercel for backend and hosting. 🎯 Industries I work across SaaS platforms, fintech and trading apps, health and fitness apps, mental wellness, telemedicine, social and dating apps, e-commerce and marketplaces, food delivery, education, and AI-first products. 🤝 How I Work I give clear architecture and tech stack recommendations from day one, deliver predictably with regular demos and progress reports, and write clean, maintainable code your future team can pick up. I focus on App Store and Google Play compliance, performance, and stability, and I stay on for long-term maintenance and scaling support. If you're planning a new mobile app, an AI-powered SaaS, an MVP, or scaling an existing product, let's discuss your goals and define the right approach. 💌 Send a message and let's build something that ships and scales.
Aleksandr V. has worked .
Weelorum
Associated with
Weelorum
$700K+
earned
Karl S.
$50/hr
100% Job Success
$100K+ earned
Available now
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Top Rated Plus Full Stack Mobile App Developer | Top 3% UpWork Talent | Flutter | Kotlin | Swift | React, Node.js, AWS | Building Scalable Digital Experiences I’m a passionate and detail-oriented Full Stack Developer with over 10 years of experience crafting high-quality Web and Mobile applications for startups, enterprises, and agencies worldwide. I specialize in building end-to-end solutions using modern technologies and frameworks — from beautiful, responsive UIs to robust, scalable backend systems. 💡 Tech Stack Highlights: Frontend:Flutter (Dart), React-Native, Kotlin, Swift, React.js, Tailwind CSS, TypeScript Backend: Node.js (Next.js, NestJS), GraphQL, REST APIs Database:, MySQL, MSSQL, MongoDB, Firebase, Google Cloud DevOps/Cloud: Docker, GitHub Actions, AWS (EC2, S3, Lambda) Tools: Git, Jira, Notion, Postman, CI/CD, WebSockets, Stripe, OAuth2 What I Offer: Full-cycle Development from concept to Deployment Clean, maintainable, and scalable code Mobile-friendly, SEO-optimized, and fast-loading applications API integrations (Stripe, Twilio, Firebase, third-party REST/GraphQL) Agile collaboration with clear communication and on-time delivery I’ve completed a wide range of freelance projects: custom dashboards, SaaS platforms, eCommerce sites, API backends, mobile-first apps, and admin panels. Whether you're looking to launch an MVP, optimize an existing product, or scale your system, I bring technical expertise and business acumen. ✅ Why Clients Choose Me: Strong work ethic & attention to detail Fast learner and great problem solver Transparent and clear Communication Available for one-time projects or long-term collaboration Let’s build something amazing together. Drop me a message — I’d love to hear about your project!
Karl S. has worked .
Rakshak G.
$20/hr
100% Job Success
$200K+ earned
Available now
Offers consultations
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Hello, I’m Rakshak, a seasoned Mobile App Developer with over 10 years of expertise in creating innovative, high-performance mobile applications. My skill set spans native development (Android: Kotlin, Java; iOS: Swift, Objective-C) and hybrid platforms (Flutter, React Native), allowing me to deliver cutting-edge solutions tailored to diverse business needs. 𝐌𝐲 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ✅ Native App Development: - Android: Kotlin, Java - iOS: Swift, Objective-C ✅ Hybrid App Development: - Flutter (cross-platform apps with seamless performance) - React Native (Robust and scalable apps for iOS and Android) ✅ Backend and API Integration: - RESTful APIs, GraphQL, Firebase - Backend support with Node.js ✅ Tools and Technologies: - Xcode, Android Studio, VS Code - CI/CD pipelines with Jenkins, GitHub Actions ✅ Performance Optimization: - App profiling and debugging to ensure smooth performance - Optimizing memory and battery consumption ✅ Cloud and DevOps: - Firebase (Authentication, Realtime Database, Push Notifications) - AWS and Google Cloud Integration During the past decade, I’ve built a wide range of iOS and Android apps, including: ☞𝐇𝐞𝐚𝐥𝐭𝐡 & 𝐅𝐢𝐭𝐧𝐞𝐬𝐬: Fitness tracking Mobile apps with real-time analytics & wearable device integrations. ☞𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞: Shopping apps featuring payment gateways and secure transactions. ☞𝐄𝐝𝐮𝐜𝐚𝐭𝐢𝐨𝐧: Interactive e-learning platforms with gamification features & Learning Management Systems. ☞𝐓𝐫𝐚𝐯𝐞𝐥 & 𝐇𝐨𝐬𝐩𝐢𝐭𝐚𝐥𝐢𝐭𝐲: Booking apps for flights, hotels, and travel itineraries. ☞𝐑𝐞𝐚𝐥 𝐄𝐬𝐭𝐚𝐭𝐞: Property management Mobile apps with 3D visualization and search features. ☞𝐒𝐨𝐜𝐢𝐚𝐥 𝐌𝐞𝐝𝐢𝐚 𝐀𝐩𝐩𝐬: Mobile Apps with social feeds, messaging, and video-sharing capabilities. ☞𝐅𝐨𝐨𝐝 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲 & 𝐆𝐫𝐨𝐜𝐞𝐫𝐲: Mobile Apps for food ordering, delivery tracking, and subscription models. ☞𝐓𝐚𝐬𝐤 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 (𝐓𝐨-𝐃𝐨) 𝐀𝐩𝐩𝐬 ☞𝐄𝐯𝐞𝐧𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐚𝐧𝐝 𝐕𝐞𝐧𝐮𝐞 𝐁𝐨𝐨𝐤𝐢𝐧𝐠 𝐀𝐩𝐩𝐬 ☞𝐈𝐧𝐯𝐞𝐧𝐭𝐨𝐫𝐲 𝐚𝐧𝐝 𝐀𝐩𝐩𝐨𝐢𝐧𝐭𝐦𝐞𝐧𝐭 𝐁𝐨𝐨𝐤𝐢𝐧𝐠 𝐀𝐩𝐩𝐬: Efficient apps tailored for organizational needs. I have honed my skills in developing a diverse array of iPhone and Android applications Development ✅ AI Powered Apps ✅ Health and Fitness Apps ✅ GPS/ Geo Location Apps ✅ Trade Apps ✅ Homeowner/Contractor App ✅ Artificial Intelligence based Apps ✅ Bluetooth / BLE Integration Apps ✅ Food Delivery Apps ✅ Nutrition Planning Apps ✅ Restaurant Search Apps ✅ Salon Booking Apps ✅ Gym Booking Apps ✅ Taxi Apps ✅ E-commerce Apps ✅ Dating and TikTok Style Apps ✅ Video Streaming, Voice Calling, Chat and Messaging Apps ✅ Real Estate Apps ✅ Driver Instructor Finding Application ✅ Hotel and Travel Booking Apps ✅ E-Learning Mobile Application ✅ Wellness & Meditation Application ✅ NDI's Industry Applications 🎯 Areas of Expertise ◉ Mobile App Development: Swift, Objective C, Kotlin, Java, Jetpack ◉ Cross-Platform App Development: Flutter (Dart), React Native ◉ Backend Development: Node JS, Nest JS, Laravel, PHP, Express ◉ Frontend Development: React JS, Next JS, Angular, HTML5, CSS3 ◉ API Development & Integrations: REST APIs, AWS Lambda, API Gateway ◉ Databases & Cloud Storage: MySQL, MongoDB, Firebase, DynamoDB ◉ Real-Time App Features: Socket IO, Firebase Real Time Database, Twilio ◉ Payment Gateway In I specialize in crafting mobile apps that not only meet but surpass user expectations. From developing apps from the ground up to enhancing existing ones or optimizing performance, I approach every project with a results-driven mindset. What Sets Me Apart: ✅ Proven Track Record: Successfully completed multiple projects with high client satisfaction. ✅ Exceptional Communication: Committed to clear, responsive, and collaborative communication. ✅ Problem-Solving Expertise: Adept at addressing challenges with innovative, efficient solutions to achieve project success. 🚀 Got questions? Feel free to message me on my profile for a detailed discussion, or we can schedule a quick call to talk about your project. ❗❗ Explore my portfolio ❗❗ Let’s transform your app idea into a powerful reality. Reach out today, and together, we’ll create something extraordinary! Highlighted Skills: Full Stack Developer | Expert Full Stack Developer | Full Stack Mobile App Developer | Full Stack AI Developer | Expert Full Stack Mobile App Developer | Mobile Developer | iOS Developer | Android App Developer | Mobile App Development | Cross platform development | AI App Developer | AI App | Mobile Developer | App Developer | Mobile App Development Consultation | IT Consultation | App Developer | AI App Developer | iOS App Development | iOS App | Android App Development | Hybrid App development | Mobile App Development Consultation | Flutter | Firebase | Dart | Flutter Dart | Flutter Firebase | iOS Development | Android App Development | Smartphone | User Authentication | In App Purchases | API Integration
Rakshak G. has worked .
ULTIVIC PVT LTD
Associated with
ULTIVIC PVT LTD
$1M+
earned
Subtain A.
$25/hr
100% Job Success
$40K+ earned
Available now
Offers consultations
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My Flutter apps have run inside 𝐂𝐢𝐭𝐢𝐛𝐚𝐧𝐤. My React Native builds earned an 𝐞𝐝𝐢𝐭𝐨𝐫𝐢𝐚𝐥 𝐟𝐞𝐚𝐭𝐮𝐫𝐞 𝐢𝐧 𝐆𝐮𝐚𝐫𝐝𝐢𝐚𝐧 𝐔𝐊, the UK's number one newspaper I am a Senior Mobile app developer specializing in Flutter and React Native for iOS and Android. MVP builds and enterprise-scale apps that ship fast and do not get rebuilt. . ▸200+ projects. ▸1,000,000+ users across live products. ▸10+ years building production mobile apps. Most mobile apps never reach 1,000 users, not because the idea failed, but because the development did. Wrong architecture. Missed deadlines. Apps rebuilt six months after launch. If you are looking to hire a mobile app developer who builds it right the first time, read on. "𝑮𝒓𝒆𝒂𝒕 𝒄𝒐𝒎𝒎𝒖𝒏𝒊𝒄𝒂𝒕𝒊𝒐𝒏 𝒔𝒌𝒊𝒍𝒍𝒔, 𝒑𝒓𝒐𝒇𝒆𝒔𝒔𝒊𝒐𝒏𝒂𝒍 𝒑𝒆𝒓𝒇𝒐𝒓𝒎𝒂𝒏𝒄𝒆. 𝑫𝒆𝒑𝒍𝒐𝒚𝒆𝒅 𝒐𝒖𝒓 𝒎𝒐𝒃𝒊𝒍𝒆 𝒂𝒑𝒑 𝒕𝒐 𝒐𝒗𝒆𝒓 100𝒌 𝒖𝒔𝒆𝒓𝒔 𝒘𝒊𝒕𝒉𝒐𝒖𝒕 𝒊𝒔𝒔𝒖𝒆𝒔. 𝑨𝒍𝒓𝒆𝒂𝒅𝒚 𝒓𝒆𝒄𝒐𝒎𝒎𝒆𝒏𝒅𝒆𝒅 𝒉𝒊𝒎 𝒕𝒐 𝒐𝒕𝒉𝒆𝒓 𝒄𝒐𝒎𝒑𝒂𝒏𝒊𝒆𝒔." 5 Stars Enterprise client, Upwork ⚡ I am a great fit you are are thinking: ▸ "My last developer disappeared halfway through and I need someone who actually finishes" ▸ "I need a Flutter or React Native developer who takes full ownership, not just the frontend" ▸ "I want an AI-powered mobile app but don't know where to start" ▸ "I need a production-ready MVP in weeks, not months" ▸ "I want clean architecture that won't need a full rebuild six months after launch" ▸ "I need someone who communicates clearly and doesn't go silent mid-project" 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝 ▸For Funded Startups - MVP Mobile App Development Your investors need a working product, not a Figma file. I build Flutter and React Native MVPs scoped to launch in weeks, architected to survive real users and scale after your next funding round. ▸For Enterprise Teams - Enterprise Mobile App Development When Citibank needed enterprise mobile infrastructure, execution mattered more than promises. I build enterprise iOS and Android apps with clean architecture, full documentation, and zero technical debt. 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐆𝐞𝐭 ▸Cross-Platform Development (Flutter and React Native): One codebase, native-grade performance on iOS and Android. Faster to market, built to scale. ▸Native iOS and Android Development: Swift, SwiftUI, Kotlin, Jetpack Compose when platform-specific performance demands it. ▸AI-Powered Mobile Apps: OpenAI API, GPT-4, recommendation engines, and AI personalization built into your app's core. ▸Full-Stack Delivery: UI/UX design to Flutter or React Native frontend to Node.js backend to App Store and Play Store deployment. 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐒𝐭𝐚𝐜𝐤 Mobile: Flutter, Dart, React Native, Swift, Kotlin, SwiftUI, Jetpack Compose Backend: Node.js, Python, FastAPI, REST, GraphQL Database: Firebase, Firestore, PostgreSQL, MySQL, MongoDB Payments: Stripe, PayPal, RevenueCat, Apple Pay, Google Pay Real-Time: Twilio, Agora, Socket io Cloud: AWS, Google Cloud, Firebase Cloud Functions Design: Figma, Adobe XD, Material Design 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 FinTech and Banking, Healthcare, Fitness, Food Delivery, Ride-Hailing, Real Estate, E-Commerce, Dating, EdTech, Social Networking, On-Demand Services, AI SaaS, Luxury Travel, Salon and Beauty 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 ▸Top Rated Plus, Top 3% on Upwork ▸700+ projects, 1,000,000+ users, 10M+ dollars earned ▸Enterprise clients include Citibank USA and Jet VIP ▸Guardian UK editorial feature, earned not paid ▸10+ years in Flutter, React Native, Swift, Kotlin ▸400+ apps live on App Store and Play Store ▸I respond within 2 hours. Always. 𝐇𝐨𝐰 𝐄𝐯𝐞𝐫𝐲 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐖𝐨𝐫𝐤𝐬 UI/UX Design to Flutter or React Native Frontend to Node.js Backend to QA and Testing to iOS and Android Deployment to 8 Weeks Free Post-Launch Support No black-box development. No scope surprises. Weekly progress updates throughout. 𝐆𝐞𝐭 𝐚 𝐅𝐫𝐞𝐞 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 𝐑𝐞𝐯𝐢𝐞𝐰 Send me your app idea and I will give you a free 30-minute architecture review. Right scope, right stack, right timeline. No pitch. No commitment. If I cannot help you, I will say so in the first 10 minutes. Message me now with your project brief. I respond within 24 hours. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 Mobile App Development, Mobile App Developer, Flutter Developer, React Native Developer, iOS App Development, Android App Development, Cross-Platform App Development, AI Mobile App Developer, AI App Development, Full Stack Mobile Developer, Flutter App Developer, Firebase Developer, Supabase Developer, MVP Development, Custom Mobile App Development, AI-Powered App Development, OpenAI API Mobile App, ChatGPT Mobile Integration, App Store Deployment, Play Store Deployment, Mobile App Development for Startups, Mobile App Development for Enterprise, Fintech App Development, Healthcare App Development, Fitness App Development, Food Delivery App Development, Dating App Development, E-commerce Mobile App, SaaS Mob
Subtain A. has worked .
Manish K.
$35/hr
100% Job Success
$100K+ earned
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I help startups and businesses build high-quality mobile apps (iOS/Android/React Native) and full-stack web products — on time, on budget, with zero hand-holding required. 100% Job Success | Top Rated | $100K+ earned on Upwork." 𝗛𝗲𝗿𝗲❜𝘀 𝘄𝗵𝗮𝘁 I 𝗯𝗿𝗶𝗻𝗴 𝘁𝗼 𝘁𝗵𝗲 𝘁𝗮𝗯𝗹𝗲: 💼 100+ ecstatic clients 🚀 150+ groundbreaking projects completed ⏰ 100k+ Earnings on Upwork 👨‍💻 Android and iOS brilliant developer (SWIFT, SWIFT UI, JAVA/KOTLIN) 👨‍💻 Full Stack Web apps (REACT, VUE, NODE, NEXT, NUXT, Angular, JAVA, Springboot, JS)Back-end Architect|Back-end Developer and API expert 📊 Power BI dashboards & data analytics expert – turning data into actionable insights 📁 SharePoint solutions – collaboration, document management, and workflow automation 👨‍💻 Game development: Unreal, Unity, Roblox, Video Game, Mobile Game, Console Game, Desktop Game. ⌛️ 8 years of dominating the market 💬 Don't settle for mediocrity if you can partner with us and experience the ultimate in software development. I am a Highly adaptable Mobile App, Full stack Web professional who embraces satisfying customers by developing excellent applications and tracking projects' status until successful completion, I Have delivered more than 150+ Mobile apps and Websites Live to Clients, I can provide references as well. What to Expect? *************** +Solutions that you won't need to fix after the project is finished. +Excellent quality +Great communication +Quick turnaround. * 8+ years of extensive and solid programming and software development. * A quick learner, able to absorb new material with ease. * Smart, dependable, very organized, detail-oriented, high integrity, and high energy. * Self-starter and ability to navigate projects with limited supervision. * Finding interesting and brilliant solutions to problems. At every project stage, I ask myself only 3 questions: 1. Will it bring value to the Customers? 2. Is the process worth the result? 3. Are we happy doing this? **Still not convinced? A bit more about me:** A programmer and an entrepreneur. Endlessly curious and in love with anything tech. Visionary tendencies but not without critical examination. I like spending my creative powers on meaningful projects which are solving world problems. Always striving to be the best version of myself. I am at my best when solving problems under a time constraint. Regards, Manish
Manish K. has worked .
Abdul Rehman S.
$40/hr
100% Job Success
Available now
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As a Full Stack AI Engineer, over the past 10 years, I've helped 100+ clients turn their ideas into revenue generating products. From early stage MVPs that went on to raise millions in funding, to AI powered SaaS platforms that scaled to thousands of users I'm a Top Rated Plus (i.e. Top 3% talent on Upwork) freelancer with $600K+ earned on Upwork and a 100% Job Success Score across various completed contracts. I don't just write code, I partner with founders and business owners to build products that actually move the needle for their business What I do best: AI & Generative AI: I integrate OpenAI, Claude, Gemini, and LLaMA into real products. From intelligent chatbots and document processing to custom AI workflows using LangChain and RAG pipelines, I build AI features that solve actual business problems, not just demos Full Stack Product Development: Whether it's a React/Next.js frontend, a Node.js or Django backend, or a React Native mobile app, I handle the full stack. I've shipped production apps in healthcare, fintech, e-commerce, and edtech DevOps & Infrastructure: I set up CI/CD pipelines, containerized deployments with Docker and Kubernetes, and cloud infrastructure on AWS, GCP, and Azure so your product scales reliably from day one How I work: I run every engagement with sprint planning, daily progress updates, and transparent communication through JIRA or Trello. You'll always know exactly where your project stands I focus on delivering within your budget and timeline, which is why clients keep coming back Best fit for: Startups building their first MVP, SaaS companies adding AI capabilities, and growing businesses that need a senior technical partner who can own the entire product development lifecycle
Abdul Rehman S. has worked .
Zweidevs (Private) Limited
Associated with
Zweidevs (Private) Limited
Vishnu A.
$18/hr
100% Job Success
$100K+ earned
Available now
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With over 10 years of diverse experience in software development, I have done it all — from development to team leadership. I am proficient in in building high-quality mobile applications and have strong expertise in Flutter, Android, and iOS app development, along with frontend and backend systems. My expertise spans multiple industries, and I’ve had the opportunity to work with remarkable companies from around the world. I have experience with a wide range of technologies and tools, which I’ve used to build some truly amazing applications. My Services: - MVP | Startup Launch | Product Growth Consulting - Flutter App Development - Android & iOS App Development - Cross-Platform Mobile App Development - Tech Consulting & Product Strategy - Backend Development & Firebase Integration My Expertise: • Flutter App Development • Android & iOS Development • Cross-platform mobile applications • Firebase integration • REST API integration & backend collaboration • App performance optimization • Bug fixing & legacy app improvements • Play Store & App Store deployment • Ongoing app maintenance & feature development • UI/UX implementation & responsive design Who I work with: Startups – take your idea through the startup lifecycle within a reasonable budget and timeline. Small and Medium Businesses – acquire software excellence to boost your current product. Working with me, you will get: - Transparent process with various tracking tools and regular meetings. - Prompt responses and concise explanations. - Expert consulting and tailored advice based on your specific needs. - Smooth integration with existing workflows and effective collaboration with your team. - Flexibility to work with clients across different time zones, from San Francisco to London. - Thorough documentation and dedicated support throughout the transition period. Have questions or need guidance? Feel free to invite me for a discussion!
Vishnu A. has worked .