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Dmitro B.
$40/hr
100% Job Success
$200K+ earned
Available now
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Top Rated Plus | $200K+ Earned on Upwork | 100% Job Success | 10+ Years on Upwork I'm an Android Developer and Mobile App Developer with 12+ years of professional experience and a PhD in Computer Science. With $200K+ earned, 100% Job Success, and Top Rated Plus status on Upwork for 10+ years, I build production-ready Android and mobile applications that scale, not MVPs that fall apart under real user traffic. As an Android Developer, my core work covers native Android App Development in Kotlin and Java, full-lifecycle delivery from requirements and architecture through Google Play release, and backend integration with REST APIs, Firebase, AWS, and third-party services. I've shipped apps with 1M+ downloads. As a Mobile App Developer, I also deliver cross-platform solutions using React Native and Flutter when a project needs iOS and Android from a single codebase. As an Android Developer and Mobile App Developer, I've delivered across fintech, healthcare, logistics, social networking, sports, e-commerce, fitness, and entertainment. I also have extensive experience in healthcare and safety applications where data encryption, secure messaging, and compliance are non-negotiable. My architecture approach as an Android Developer is Clean Architecture with MVVM and MVP patterns, Kotlin Coroutines and Flow for async tasks, Hilt for dependency injection, and Jetpack Compose for modern UI. I use RxJava where legacy codebases require it and maintain CI/CD pipelines with Jenkins and TeamCity to keep releases reliable and predictable. As a Mobile App Developer and Kotlin developer, I take ownership of API planning with backend teams, code reviews, refactoring, and full technical documentation so the codebase remains maintainable long after delivery. I work as part of a team at Requestum, which means I can bring in backend, iOS, or QA specialists when a project needs more than one mobile app developer to ship on time. Clients typically work with me when they need: - an Android Developer to build a native Kotlin app from scratch to Google Play release - a Mobile App Developer to deliver iOS and Android from a single React Native or Flutter codebase - an Android App Developer to refactor, optimize, or extend an existing Kotlin or Java codebase - a Kotlin developer who understands Clean Architecture and can own the full technical roadmap - a mobile app developer with experience in fintech, healthcare, logistics, or social platforms If you need an Android Developer who ships production-grade apps and takes full technical ownership, let's talk. Main stack: Kotlin, Java, Android SDK, Jetpack Compose, Android Jetpack, Hilt, Kotlin Coroutines, RxJava, Retrofit, Firebase, AWS, Google Maps API, Stripe, React Native, Flutter, Room, Realm, Jenkins, Docker.
Requestum
Associated with
Requestum
$9M+
earned
$30/hr
100% Job Success
$50K+ earned
Available now
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Ex-Software Engineer at Locofy (Product Hunt Winner). 8+ years of experience building high-performance React Native apps and production-grade AI systems. I help founders launch MVPs and scale to thousands of users. I build full product systems that solve real business problems. Whether it's a greenfield startup or an enterprise-grade AI integration, I handle the full lifecycle: from user experience and backend architecture to deploying intelligent, scalable features. ◆ What I Build • Mobile MVPs: High-performance React Native apps built for native-level quality. • AI-First Apps: Production systems using OpenAI, RAG, and Agentic workflows. • Scalable Backends: Robust Node.js architecture and secure APIs built for growth. • Real-time Systems: Secure chat, GPS tracking, and multi-user pipelines. ◆ AI & Advanced Engineering I specialize in the "Intelligence Layer" of modern software: • Ready Made Solutions : AI chatbots and assistants. • Custom LLM Solutions: Domain-specific fine-tuning for Healthcare, Food, Fintech, and EdTech. • Computer Vision: Mobile sensor integration, rPPG heart rate, and facial analysis. • Automation: End-to-end business process automation using n8n and LangChain. ◆ Why Founders Choose Me • Global Scale: Built DineHome (Norway) and US apps with 1M+ active users. • Full Ownership: I handle the lifecycle from idea to launch - I manage the complexity. • Product-First: I build for user adoption and ROI, not just checking off features. • Reliable Speed: Clear milestones and updates ensure fast, surprise-free delivery. • Scalable Code: I write maintainable code designed to grow alongside your business. ◆ Technical Stack • Mobile: React Native (Expert) • Backend: Nodejs, Express, Python • Frontend: Next, React • AI/ML: OpenAI, Hugging Face, LangChain, RAG, Vector DBs • Database: PostgreSQL, MongoDB, Firebase • Real-time: WebRTC, Socket io, AWS/GCP ◆ How I Work I follow a structured process to ensure total clarity at every step: • Requirements & Planning: I start with a discovery call to clearly define scope and goals. • Scope & Estimation: I provide a detailed breakdown of features, timelines, and cost. • Milestone-Based Development: Work is delivered in phases, making progress easy to track. • Transparent Communication: You’ll receive regular updates so you always know where things stand. ◆ Let’s Build Something Great If you're looking to build a serious product with mobile + backend + AI in one system, I can help you take it from idea to launch and beyond.
Assad A.
$25/hr
100% Job Success
Available now
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Senior Full Stack Engineer Building Scalable, Secure & High Performance Web Applications Hi, I am Assad I am a Full Stack Developer with 9+ years of experience delivering high-performance websites, SaaS platforms, API-driven applications, AI chatbots, and automation systems. I specialize in PHP, Laravel, MERN stack, Node.js, React, Next.js, Python, AI/LLMs, and cloud-based deployments, helping startups, SMBs, and enterprises build fast, scalable, and future-proof digital products. 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 Full Stack Web Development – PHP, Laravel, MERN, Next.js * Custom web apps, SaaS platforms, dashboards, CRMs, and enterprise systems * Backend architecture using PHP, Laravel, Node.js, Express.js * Modern frontend development with React, Next.js, Vue.js, AngularJS * Clean, SEO-optimized, mobile-friendly UI/UX and fast-loading pages 𝐀𝐈 𝐂𝐡𝐚𝐭𝐛𝐨𝐭𝐬 & 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 * ChatGPT/LLM integrations, custom AI chatbots, NLP & conversational AI * Workflow automation, CRM automation, RPA, data processing bots * AI-powered APIs, intelligent form processing, enterprise automation 𝐀𝐏𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 * REST, GraphQL API development * Stripe, PayPal, Twilio, Webhooks, CRM & ERP integrations * Secure authentication (JWT, OAuth2), multi-platform integrations 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 – 𝐒𝐡𝐨𝐩𝐢𝐟𝐲, 𝐖𝐨𝐨𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐂𝐮𝐬𝐭𝐨𝐦 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 * Shopify custom themes & apps, store setup, checkout customization * WooCommerce customization, WordPress development, Elementor * Subscription systems, payment flow optimization, analytics & tracking 𝐂𝐥𝐨𝐮𝐝 𝐇𝐨𝐬𝐭𝐢𝐧𝐠, 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 & 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 * AWS, DigitalOcean, Google Cloud, Vercel deployments * CI/CD, load balancing, server optimization, caching strategies * Security hardening, database optimization, speed & performance tuning 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞 * 9+ years as a Full Stack Developer across multiple industries * Strong expertise in PHP, Laravel, React, Node.js, Next.js, Python, AI & Automations * End-to-end development: planning → development → deployment → optimization * Clean, scalable code + predictable delivery + reliable long-term support * Proven success with startups (MVPs), SMBs (scaling), and enterprises (automation) 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐇𝐢𝐫𝐞 𝐌𝐞 Full-Stack: PHP, Laravel, Node.js, Express.js, React, Next.js, MERN Stack, MEAN Stack, Vue.js, AngularJS AI & Automation: ChatGPT API, OpenAI, NLP Bots, RPA, Intelligent Automation, Business Automation Backend: REST APIs, GraphQL, Microservices, Authentication, API Security Frontend: React Components, UI/UX, SEO-Optimized Pages, Responsive Layouts Databases: MySQL, PostgreSQL, MongoDB, Firebase, SQL Server CMS & E-Commerce: Shopify, WordPress, Elementor, WooCommerce Cloud & DevOps: AWS, Google Cloud, DigitalOcean, Vercel, Docker, CI/CD Other: Chrome Extensions, Performance Optimization, Website Speed, SEO-Friendly Development If your goal is to build, scale, or automate your business with a fast, secure and scalable solution, I can help. Send me a message and let's create something powerful.
Dmytro D.
$30/hr
100% Job Success
$800K+ earned
Available now
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I’m a Top Rated full-stack mobile developer with 10+ years of experience building production apps for iOS, Android, and web. I help founders, agencies, and product teams turn ideas, designs, and existing codebases into reliable, scalable apps. My strongest work is mobile-first products: marketplaces, SaaS platforms, fintech, health/wellness apps, IoT/BLE apps, AI-powered tools, and app rescue/takeover projects. Core development: - iOS: Swift, SwiftUI, Objective-C - Android: Kotlin, Java - Cross-platform: Flutter, React Native - Backend: Node.js, Firebase, Supabase, PostgreSQL, REST APIs - Payments/subscriptions: Stripe, RevenueCat, Apple/Google IAP - App launch: TestFlight, App Store, Google Play AI and automation: - OpenAI / ChatGPT API, Claude, Gemini - AI assistants, RAG, workflow automation, internal tools - Claude Code, Codex, Cursor, Copilot - n8n and agentic workflows How I work: - Clear daily communication - Weekly demos - Clean Git workflow - Practical architecture - Fast iteration without sacrificing maintainability - Honest feedback when a feature is too expensive, risky, or should be simplified If you need someone who can think through the product, build the app, connect the backend, integrate AI where it makes sense, and help ship to production, I’d be happy to talk.
Dmytro D. has worked .
Shujaat A.
$25/hr
100% Job Success
$100K+ earned
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🚀 Top Rated Plus Freelancer | Building AI-Powered Mobile Apps That Scale for Startups & Businesses I am a Mobile App Developer with 9+ years of experience specializing in Flutter, FlutterFlow, AI-powered apps, and custom mobile app development for iOS, Android, and Web I help startups, entrepreneurs, and businesses transform their ideas into high-performance, scalable, and user-friendly mobile applications from MVP development to fully customized production-ready solutions. With expertise in Flutter, FlutterFlow, React Native, Firebase, IOS, Android, AI integrations, AI Mobile apps Development, and full-stack mobile development, I build modern applications optimized for performance, reliability, and long-term growth. ⚡ Mobile App Development Services: ✅ Custom Mobile App Development ✅ iOS App Development ✅ Android App Development ✅ Flutter App Development ✅ FlutterFlow Development ✅ Cross-Platform Mobile Applications ✅ MVP Development for Startups ✅ SaaS Mobile Applications ✅ AI-Powered Mobile Apps ✅ Enterprise Mobile Solutions ✅ Social Media Applications ✅ E-commerce & Marketplace Apps ✅ On-Demand Service Applications ✅ Real-Time Chat & Community Apps ✅ Subscription-Based Applications 🧠 AI-Powered Mobile App Solutions: I build intelligent applications using modern AI technologies: • AI-Powered Mobile Apps • OpenAI & ChatGPT API Integration • LLM-Based Applications • AI SaaS & Automation Solutions • Image, Video & Voice AI Features • AI Agents & Smart Recommendations ⚙️ Advanced Integrations & Features : • Social Media Integration (Google, Apple, Facebook Login) • Payment Gateway Integration (Stripe, PayPal, In-App Purchases) • Firebase Authentication & Cloud Services • Push Notifications • Real-Time Database & Messaging • Maps & Location-Based Features • Third-Party API Integration • Analytics & Performance Optimization 💻 Technology Stack: ◆ Mobile Development: Flutter | Dart | FlutterFlow | React Native | Swift | Kotlin ◆ Backend & Cloud: Firebase | Supabase | Node.js | REST APIs | Database Architecture 🌟 Why Clients Choose Me ✔ Proven experience building production-ready applications ✔ Clean, scalable, and maintainable code ✔ Business-focused development approach ✔ Clear communication and transparent workflow ✔ Complete support from idea validation to app launch ✔ App Store & Google Play deployment assistance I Dont just build apps. I help create digital products that solve real problems and support business growth. Whether you need a Flutter Developer, FlutterFlow Expert, AI Mobile App Developer, Custom App Developer, or MVP Development Partner, I can help bring your vision to life. 📩 Lets discuss your project idea and create a clear roadmap for success. Best regards, Shujaat Arbab Core Skills: Flutter Developer | FlutterFlow Developer | AI Mobile App Developer | Mobile App Development | Custom Mobile Apps | iOS App Development | Android App Development | MVP Development | Startup App Development | Social Media Integration | AI-Powered Apps | SaaS Development | Firebase Developer | React Native | OpenAI API Integration | ChatGPT API | API Integration | Full Stack Mobile App Developer | Cross Platform App Development | App Store Deployment
Manan G.
$25/hr
100% Job Success
$80K+ earned
Offers consultations
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🏆 Top Rated 💻 280+ Jobs completed with 5-star reviews 💯 100% Job Success 📚 5+ Years experience 🌟 High-Quality Work Hi, I am Manan Gadhiya who is software engineer and enthusiast react native developer. I have 5+ years of experience in professional mobile application development. I have been developing pixel-perfect and smooth user experience mobile apps using React Native (Cross Mobile Platform) Technology with advanced tools like Redux, Hooks, and Design Patterns. I will provide the solution with a clean and manageable code with quick delivery. 🚀 what you will get: ✅ Market-competitive Mobile App Development services ✅ Expert consultation on product strategy and direction ✅ Designing your app ✅ Immediate response ✅ Deployment and delivery for testing ✅ Performance-Driven Solutions ✅ Seamless iOS & Android Integration ✅ Team Collaboration 🚀 Here are some Top technologies & Services I am skilled at: ✅ React Native CLI, Expo ✅ JavaScript, TypeScript ✅ Amazon Web Services ✅ Redux, Async storage ,Axios ✅ Sockets, Camera, ,Cloud Messaging, Video, Audio, Chat, ✅ Firebase, Cloud Firerstore, Firebase Realtime database ✅ GitHub, Gitlab, Bitbucket ✅ API integrations ✅ VSCode, XCode, Android Studio I would appreciate a chance to get interviewed and show you why I am the best candidate. 

 Manan Gadhiya 🚀
Manan G. has worked .
Ateeb H.
$30/hr
100% Job Success
$40K+ earned
Available now
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Hi, I am Ateeb, a Flutter and React Native developer who builds production mobile apps that ship on time, clear App Store review, and generate real revenue from day one. I build end-to-end mobile products across fintech, healthtech, on-demand delivery, live commerce, and SaaS. Clean architecture. Real users. No rewrites six months later. 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝 Cross-platform iOS and Android apps using Flutter and React Native Native iOS (Swift) and Android (Kotlin) for performance-critical products AI-powered mobile features using OpenAI API, Claude, and Google ML Kit Fintech apps with Stripe, RevenueCat, and subscription billing On-demand delivery and real-time GPS tracking with dual-role architecture Live commerce and streaming apps with in-app gifting and video feeds Social platforms with real-time chat, push notifications, and follow systems MVPs from zero to App Store in weeks, not months Firebase, Supabase, REST API, and GraphQL integrations App Store and Google Play submission, optimization, and review clearance Performance audits and scaling for existing apps 𝐌𝐲 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 Mobile; Flutter, Dart, React Native, Expo, Swift, Kotlin State Management; Riverpod, GetX, BLoC, Redux Backend and APIs; Node.js, REST APIs, GraphQL, WebSockets Databases; Firebase, Supabase, PostgreSQL, MongoDB Payments; Stripe, RevenueCat, In-App Purchases AI Integration; OpenAI API · Claude API · Google ML Kit DevOps; GitHub Actions, CI/CD, Fastlane, TestFlight 𝐀𝐩𝐩𝐬 𝐈 𝐇𝐚𝐯𝐞 𝐒𝐡𝐢𝐩𝐩𝐞𝐝 𝐃𝐫𝐢𝐩 𝐒𝐡𝐨𝐩 𝐋𝐢𝐯𝐞 — live commerce iOS app with real-time streaming, in-app gifting, and IAP 𝐓𝐚𝐰𝐚𝐬𝐢 — dual-role GPS tracking app (Customer and Driver) with real-time location 𝐇𝐨𝐦𝐢𝐞𝐬 — cross-platform social app with real-time chat, profiles, and follow system 𝐂𝐨𝐠𝐧𝐢𝐟𝐲 — AI-powered learning app with chatbot flows and content ingestion 𝐆𝐮𝐚𝐯𝐚 𝐁𝐮𝐝𝐠𝐞𝐭 — household finance app with contract management and expense tracking 𝐎𝐄𝐆 𝐅𝐢𝐧𝐝 𝐄𝐱𝐩𝐞𝐫𝐭 𝐓𝐮𝐭𝐨𝐫𝐬 — tutor-student marketplace built on Flutter and Firebase 𝐁𝐫𝐫𝐫𝐢𝐧𝐠 — on-demand service platform with provider matching and booking flows 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐨𝐦𝐞 𝐁𝐚𝐜𝐤 "Excellent and attentive to details developer. I love the commitment Ateeb puts in the project thus far." "Excellent as always." I treat your product like it is my own. I use an AI-assisted development workflow to deliver faster without cutting corners on architecture or code quality. 𝐁𝐞𝐬𝐭 𝐅𝐢𝐭 𝐈𝐟 𝐘𝐨𝐮 𝐍𝐞𝐞𝐝 A production mobile app built right the first time An MVP launched fast without sacrificing architecture AI features integrated into your mobile product An existing app fixed, optimized, or scaled A developer who communicates clearly and actually hits deadlines 𝐍𝐨𝐭 𝐚 𝐅𝐢𝐭 𝐈𝐟 𝐘𝐨𝐮 𝐍𝐞𝐞𝐝 The cheapest quote on the platform Someone who starts coding before understanding what you are building 𝐋𝐞𝐭'𝐬 𝐁𝐮𝐢𝐥𝐝 𝐘𝐨𝐮𝐫 𝐌𝐨𝐛𝐢𝐥𝐞 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 Planning a Flutter app, React Native app, AI-powered mobile feature, fintech platform, on-demand delivery system, live commerce product, or real-time tracking app? Send me a message with what you are building. I will respond within a few hours with honest feedback and a clear next step. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: React Native Developer | React Native Expert | Mobile App Developer | iOS Developer | Android Developer | Cross Platform Mobile App Developer | Expo Developer | Expo Router | MERN Stack Developer | React.js Developer | Next.js Developer | Node.js Developer | Full Stack Developer | AI App Developer | AI Integration | OpenAI API | Claude API | Anthropic API | LangChain | RAG | Supabase Developer | Firebase Developer | RevenueCat | Superwall | Stripe Integration | TypeScript Developer | MVP Development | Startup App Developer | SaaS Mobile App | Subscription App Developer | App Store Deployment | Play Store Deployment
Vizz Web Solutions Private Limited
Associated with
Vizz Web Solutions Private Limited
$600K+
earned
Rostyslav Y.
$20/hr
100% Job Success
$10K+ earned
Available now
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Free 30-min audit: I'll review your current workflow and show you exactly where AI can save you time and money. 50+ projects delivered. 15+ industries. Let's build something smart. I specialise in building intelligent systems that combine robust web development with AI so you get not just apps, but solutions that automate processes, boost efficiency and open up real growth. From LLM integration and AI agents to RAG systems and full stack development I handle it all, from concept to deployment. My clients across 15+ industries have reduced operational costs by up to 40% and cut time-to-market by 30%. My solutions run at 99.9% uptime and handle 1M+ requests per month. Whether you need an intelligent chatbot, a data automation system, or a scalable web app I translate complex business requirements into clean, working solutions. What I work with: Full Stack: React, Node.js, Python (Django, Flask), TypeScript, PostgreSQL, MongoDB, REST APIs, Microservices AI/ML: LLM Integration, RAG, Prompt Engineering, OpenAI API, LangChain, Fine-tuning, AI Agents Cloud & DevOps: AWS (Lambda, S3, EC2, SageMaker), Azure, Docker, Kubernetes, CI/CD, Serverless Automation: n8n, Zapier, Custom Workflow & Business Process Automation Leadership: Agile, Technical Lead, Solution Architecture, System Design Start with a free audit message me and we'll find exactly where AI can make the biggest impact for your business.
Rostyslav Y. has worked .
Muhammad K.
$20/hr
100% Job Success
$20K+ earned
Available now
Offers consultations
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⭐ 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐢𝐎𝐒 & 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 | 𝐌𝐕𝐏 & 𝐒𝐭𝐚𝐫𝐭𝐮𝐩 𝐄𝐱𝐩𝐞𝐫𝐭 | 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐀𝐩𝐩𝐬 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 | 𝟓+ 𝐘𝐞𝐚𝐫𝐬 | 𝟑𝟎𝟎+ 𝐀𝐩𝐩𝐬 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 I help startups and businesses 𝐝𝐞𝐬𝐢𝐠𝐧, 𝐛𝐮𝐢𝐥𝐝, 𝐟𝐢𝐱, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐞 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬 that launch fast and grow smoothly. As a 𝐭𝐨𝐩-𝐫𝐚𝐭𝐞𝐝 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 & 𝐑𝐞𝐚𝐜𝐭 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, and UI/UX designer, I specialize in building high performance Cross Platform Apps, websites, and SaaS-based web applications using Flutter/Dart and React, with various backend options like mysql/phpmyadmin, mongoDB, aws, firebase, supabase, appwrites, with using other techs like nodejs, javascript, php, laravel, python etc. I specialize in building AI-powered cross-platform mobile apps using Flutter/Dart with scalable backend systems (Firebase, Supabase, Node.js). You don’t just get an app you get a 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐫𝐞𝐚𝐝𝐲 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 designed for real users, fast growth, and long-term scalability. I turn bold ideas into native-like Flutter apps for iOS and Android, taking projects from first wireframe to final App Store release. 𝐌𝐲 𝐟𝐨𝐜𝐮𝐬 𝐚𝐫𝐞𝐚𝐬 𝐢𝐧𝐜𝐥𝐮𝐝𝐞: ◉ Flutter App Development ( Production-ready, scalable, high-performance) ◉ AI App Development (ChatGPT, OpenAI, Gemini, AI chatbots, automation features) ◉ SaaS App Development (Flutter Web + Mobile + Admin Panels) ◉ Full-stack mobile & web solutions that deliver measurable business results ◉ MVP Development for Startups (fast launch, future-ready architecture) 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 • 𝐑𝐞𝐚𝐜𝐭 • 𝐃𝐚𝐫𝐭 • 𝐉𝐚𝐯𝐚𝐬𝐜𝐫𝐢𝐩𝐭 • 𝐔𝐈/𝐔𝐗 𝐃𝐞𝐬𝐢𝐠𝐧 • 𝐍𝐨𝐝𝐞.𝐣𝐬 • 𝐅𝐢𝐠𝐦𝐚 • 𝐅𝐢𝐫𝐞𝐛𝐚𝐬𝐞 • 𝐒𝐮𝐩𝐚𝐛𝐚𝐬𝐞 • 𝐎𝐩𝐞𝐧𝐀𝐈 • 𝐆𝐞𝐦𝐢𝐧𝐢 𝐖𝐡𝐲 𝐜𝐡𝐨𝐨𝐬𝐞 𝐦𝐞: ◉ Proven results: 100 % Job Success, Top-Rated, 300 + completed projects ◉ Flutter-first workflow: UI/UX → Frontend → Backend → Testing → Launch ◉ Clean, reusable Flutter code: scalable, maintainable, and fast ◉ Experience across industries:Health, Finance, E-commerce, AI, On-Demand Services & SaaS ◉ Clear communication: fast replies, common-sense solutions, on-time delivery 𝐖𝐡𝐚𝐭 𝗬𝗼𝘂 𝗰𝗮𝗻 𝗴𝗲𝘁 ◉ Custom iOS & Android apps (Flutter) ◉ Flutter web apps & SaaS solutions ◉ MVP Development for Startups – Fast build, clean architecture, future-ready ◉ Node.js / RESTful APIs for Flutter apps ◉ UI/UX Design for Flutter apps (Figma & Adobe XD) ◉ Frontend builds with HTML, CSS, JavaScript for web or embedded views ◉ Full hand-off: source code, documentation, and post-launch support ◉ AI-powered Flutter apps & Chatbot integration ◉ Bug Fixing & App Rescue – Fix incomplete apps, refactor messy code ◉ App Optimization & Scaling – Improve speed, structure, and performance I work across the full product lifecycle from 𝐢𝐝𝐞𝐚 𝐯𝐚𝐥𝐢𝐝𝐚𝐭𝐢𝐨𝐧 → 𝐌𝐕𝐏 → 𝐬𝐜𝐚𝐥𝐢𝐧𝐠 → 𝐀𝐩𝐩 𝐒𝐭𝐨𝐫𝐞 𝐥𝐚𝐮𝐧𝐜𝐡 → 𝐥𝐨𝐧𝐠-𝐭𝐞𝐫𝐦 𝐬𝐮𝐩𝐩𝐨𝐫𝐭. 𝐇𝐚𝐯𝐞 𝐚𝐧 𝐢𝐝𝐞𝐚 𝐟𝐨𝐫 𝐚 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩? Send a message or invite — I’m ready to build it. Flutter App Development • Dart Programming • Kotlin Android Development • Java Mobile Apps • Swift / SwiftUI iOS Development • Node.js Backend Development • Figma UI/UX Design • Adobe XD Prototyping • Flutter & Android App Developer – Cross-Platform Expert • Android and iOS developer • iphone app developer • SaaS App Development • AI App Development • OpenAI •Gemini
Muhammad K. has worked .
Drishti C.
$60/hr
100% Job Success
$600K+ earned
Available now
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15+ years. Dozens of products shipped. One consistent focus is building systems that don't break when your business grows. If you're a founder or product team looking for a technical lead who can guide decisions, not just execute tasks, that's exactly what I do. I work with startups, scale-ups, and established businesses to take ideas from early concept through to stable, scalable products. Whether that's an MVP you need to validate quickly, a mobile app ready for real users, or a SaaS platform built to grow, I stay closely involved on the technical side while keeping the broader product direction on track. 𝗪𝗵𝗮𝘁 𝗺𝗮𝗸𝗲𝘀 𝘁𝗵𝗶𝘀 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁 Most developers will build what you ask for. My job is to make sure what we build is the right thing and that it won't need a full rebuild when your user base grows or your requirements change. That means asking the right questions early, flagging trade-offs before they become expensive problems, and making sure every technical decision connects back to your business goals. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱 • Mobile Applications — iOS, Android & Cross-Platform • Full-Stack Web Applications & SaaS Platforms • MVP Builds from idea to working product, fast • API Development & Third-Party Integrations • Backend Architecture built for scale • Technical Strategy & Product Planning for founders 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜'𝘃𝗲 𝘄𝗼𝗿𝗸𝗲𝗱 𝗶𝗻 Healthcare & Mental Wellness · Fitness & Sports · Real Estate · Freight & Logistics · Education & E-Learning · Food & Beverage · Financial Services · Social & Community Platforms Each of these industries comes with its own operational and technical challenges. Having worked across all of them means I can move faster, ask better questions, and avoid the mistakes that slow teams down. 𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸 I value long-term collaboration over quick handoffs. Many of the clients I've worked with have stayed through multiple development stages, because when a team understands your product deeply, the work gets better and faster over time. My working style is direct and transparent. You'll always know where things stand, what decisions are coming, and why I'm recommending what I am. No technical jargon for its own sake, just clear communication that keeps the project moving. Where projects require it, I work with a trusted team of developers I have built and managed over the years. Every team member works under my direct supervision, and I remain the primary technical lead and client point of contact throughout. This means you get the reliability of working with a senior lead alongside the delivery capacity of a full team. 𝗔𝗜-𝗔𝘀𝘀𝗶𝘀𝘁𝗲𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 I use AI tools like Claude as part of my development workflow. Not as a shortcut, but as a way to move faster without cutting corners. In practice, that means using AI to accelerate repetitive groundwork, explore approaches quickly, and pressure-test logic, while every piece of code that goes into a production system is reviewed, understood, and validated by me before it ships. I don't copy code blindly. AI handles speed. Experience handles judgment. The combination means you get faster delivery without the hidden technical debt that comes from unreviewed, auto-generated code. 𝗟𝗲𝘁'𝘀 𝘁𝗮𝗹𝗸 𝗮𝗯𝗼𝘂𝘁 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 If you're building any of the following, I'd like to hear about it: • A mobile app: iOS, Android, or cross-platform • A SaaS product or startup MVP • A scalable web application or backend system • A platform that's grown beyond its original architecture Send me a short brief describing what you're building and where you're stuck. I'll review it and come back with honest thoughts on approach, timeline, and what to watch out for.
Differenz System LLC
Associated with
Differenz System LLC
$700K+
earned