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Abdul B.
$30/hr
100% Job Success
Available now
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🚀 𝗦𝗮𝗮𝗦 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗟𝗮𝗿𝗮𝘃𝗲𝗹, 𝗥𝗲𝗮𝗰𝘁, 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 | 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝘀 I help startups and businesses 𝐛𝐮𝐢𝐥𝐝, 𝐥𝐚𝐮𝐧𝐜𝐡, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐞 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 𝐚𝐧𝐝 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬 from MVP to production-ready systems used by real customers. With 𝟱𝟬𝟬+ 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝗮𝗻𝗱 $𝟯𝟬𝟬𝗞+ 𝗶𝗻 𝘁𝗼𝘁𝗮𝗹 𝗲𝗮𝗿𝗻𝗶𝗻𝗴𝘀, I bring both 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗲𝘅𝗲𝗰𝘂𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘁𝗵𝗶𝗻𝗸𝗶𝗻𝗴 𝘁𝗼 𝗲𝘃𝗲𝗿𝘆 𝗽𝗿𝗼𝗷𝗲𝗰𝘁. I’m Abdul, a 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗦𝗮𝗮𝗦 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with 12+ years of experience building 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝘄𝗲𝗯 𝗮𝗻𝗱 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 for startups and growing businesses I specialize in developing 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀, 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝘀𝗼𝗳𝘁𝘄𝗮𝗿𝗲, 𝗮𝗻𝗱 𝗰𝘂𝘀𝘁𝗼𝗺 𝘄𝗲𝗯 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀, helping clients turn ideas into production-ready products. From architecture to deployment, I deliver 𝗲𝗻𝗱-𝘁𝗼-𝗲𝗻𝗱 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 using modern technologies such as 𝗟𝗮𝗿𝗮𝘃𝗲𝗹, 𝗥𝗲𝗮𝗰𝘁, and 𝗡𝗲𝘅𝘁.𝗷𝘀, 𝗡𝗼𝗱𝗲.𝗷𝘀, 𝗮𝗻𝗱 𝗔𝗪𝗦. I lead a senior engineering team focused on building 𝗿𝗼𝗯𝘂𝘀𝘁, 𝘀𝗲𝗰𝘂𝗿𝗲, 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘀𝘆𝘀𝘁𝗲𝗺𝘀, ensuring every project is designed for long-term growth, not just short-term delivery. If you're looking for 𝗮 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝗲 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗵𝗼 𝘂𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱𝘀 𝗯𝗼𝘁𝗵 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗮𝗻𝗱 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆, you're in the right place. 𝗠𝘆 𝗥𝗲𝗰𝗲𝗻𝘁 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲: • Marketplace platform (web + mobile) for video editors and clients with real-time collaboration. As a Full Stack Developer, I used PHP Laravel on the backend, React JS / Tailwind for the web app, and React native for the hybrid mobile app. Key Features include: Multi-user role, in-app chat, Job posting, and awarding jobs to editors, Stripe Connect for payment gateway. • Royalty mobile app with 10K+ users and integrated payment processing. Sercus Pay is a mobile wallet and payment SaaS platform I built from the ground up, featuring a unique shared rewards system that allows users to earn not only from their own spending but also from the activity of others. Key tasks include mobile apps (iOS & Android) for customers and merchants, a scalable backend and APIs using Laravel, an Admin dashboard with real-time analytics, Stripe integration for secure payments, and merchant payouts • Fundraising platform for non-profits to set up and manage donation campaigns. It is a multi-tenant web app where users can create campaign pages using a custom builder with all available drag-and-drop modules and receive donations. • Golf instructor platform for booking lessons, payments, and lesson delivery. It is a multi-tenant web and mobile app where instructors can offer courses to students, students can buy courses, make payments, book online consultations, etc. • Edtech website with LMS and multi-vendor course creation. It is a marketplace web app for selling courses similar to Udemy. 💼 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮 𝐁𝐮𝐢𝐥𝐝 ✔ SaaS platforms (multi-tenant, subscription-based) ✔ Web applications (Laravel + React) ✔ Mobile apps (React Native, iOS & Android) ✔ MVP development for startups ✔ AI-powered applications & chatbot integrations ✔ Real-time systems (chat, notifications, live features) ✔ API integrations & third-party systems 🔧 𝗠𝘆 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 Laravel · PHP · React.js · Node.js · React Native REST APIs · WebSockets · PostgreSQL · MySQL Firebase · AWS · Stripe · PayPal · OpenAI 📈 𝗣𝗿𝗼𝘃𝗲𝗻 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 Built 50+ web & mobile applications Developed platforms across: Marketplace & SaaS Fintech & payments EdTech & LMS On-demand services Health & fitness Real estate & booking systems 🛠 𝗖𝗼𝗿𝗲 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Laravel · PHP · React.js · Node.js · React Native · REST APIs · WebSockets · AI/ML Integration · PostgreSQL · MySQL · Firebase · AWS · SaaS Developer · Laravel Developer · React Developer · React Native Developer · Full Stack Developer 🔑 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗮𝗻𝗱 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗼𝗳𝗳𝗲𝗿: Custom SaaS platform development (multi-tenant, subscription-based) Full-stack web application development (React/Next, Laravel, Node) Cross-platform mobile apps (iOS & Android via React Native) Real-time systems (chat, notifications, live video) Payment gateway integration (Stripe, PayPal, Razorpay) AI & chatbot integration (OpenAI, custom ML models) API development and third-party integrations If you're building a serious product and need a reliable technical partner, I can help. 👉 Ready to build something exceptional? Send me a message describing your project, and I'll suggest the best technical approach. Click 𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯 to get started.
Abdul B. has worked .
Artemii T.
$40/hr
100% Job Success
$700K+ earned
Available now
Offers consultations
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Full-Stack & Mobile Engineer (React, Next.js, Node.js, React Native, n8n, Supabase) ▪ 10 years I help startups and growing companies build high-quality web apps, mobile apps, and backend systems using React, Next.js, Node.js, React Native, TypeScript, Supabase, and PostgreSQL. I turn messy codebases and unfinished features into clean, fast, stable applications — web, mobile, and backend. I build MVPs in weeks, automate workflows with n8n, and ship production-ready releases at a predictable pace. My work has supported teams at Google, MIT, FedEx, and IPG Photonics (LightWeld used in SpaceX supply chain). Why me: 🏅 Top Rated Plus ▪ 100% Job Success ▪ $700k+ earned 10 years of hands-on full-stack, mobile, and backend development Shipped 70+ products across FinTech, HealthTech, SaaS, and marketplaces Built systems used inside Google, MIT, and FedEx Developed industrial software for IPG/LightWeld powering SpaceX-grade manufacturing Led engineering for a fintech mobile app with 250k+ monthly active users YC startup I worked with raised $1.6M after MVP What I deliver: • Full-stack development: React, Next.js, TypeScript, Node.js • Mobile app development: React Native for iOS & Android • Backend development: Supabase, PostgreSQL, Firebase, custom APIs • API integrations: Stripe, HubSpot, Slack, REST, GraphQL • Automation: n8n workflows (onboarding, CRM sync, internal tools) • MVP development in 4–8 weeks • Codebase rescue, refactoring, performance improvements • Long-term weekly development & product support Toolbox: React ▪ Next.js ▪ React Native ▪ Node.js ▪ TypeScript ▪ Supabase ▪ PostgreSQL Firebase ▪ Redis ▪ Swift ▪ Kotlin ▪ Docker ▪ AWS ▪ Vercel ▪ CI/CD ▪ n8n Automations You get someone who can architect, build, integrate, and actually finish things — not just write fragments of code. If you need a reliable full-stack or mobile engineer who delivers clean engineering and fast execution — let’s talk.
Artemii T. has worked .
IvorySoft - Top React | Node.js | TypeScript Agency
Associated with
IvorySoft - Top React | Node.js | TypeScript Agency
$2M+
earned
Valery M.
$35/hr
100% Job Success
$3M+ earned
Available now
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🏆 $3M+ Earned on Upwork — Placing Me Among a Very Small Percentage of Freelancers on the Platform Looking for a veteran full-stack web development team to bring your CMS, CRM, ERP, SaaS, marketplace, or data platform to life? We don’t do quick hacks or throwaway code. We build systems that last. We are a senior team of full-stack engineers with 25+ years of hands-on web development experience and 600+ successful projects delivered across 40+ industries. We focus on long-term, production-grade systems where architecture, performance, and business logic truly matter. We operate as web developers, React developers, WordPress developers, mobile app developers, and backend engineers, delivering full-cycle product development using PHP, JavaScript, and Python. Our stack includes Laravel, Symfony, Vue, React, Angular, Node.js, Next.js, TypeScript, jQuery, MySQL, PostgreSQL, Redis, and modern API-first architectures. Whether you need a full-stack developer (PHP, JavaScript, Python), a Python full-stack developer, or a PHP Laravel Angular combination, we cover the entire lifecycle end to end. As front-end full-stack specialists, we build high-performance dashboards, SPAs, PWAs, and data-heavy interfaces using React, Vue, Angular, Next.js, and TypeScript. Our React team focuses on performance, scalability, and UX logic, while our backend engineers design robust systems with REST and GraphQL APIs, multitenant architectures, role-based access control, billing engines, reporting pipelines, and audit trails. We also work as software developers and full-stack AI engineers when projects require machine learning, automation, or advanced data processing. Our Python full-stack teams build data pipelines, AI-assisted workflows, and automation systems that reduce operational overhead and deliver measurable business value. This includes AI-enabled backends, LLM integrations, and ML-driven platforms. As WordPress developers, we build custom plugins, headless CMS architectures, and React or Vue frontends. As mobile app developers, we deliver iOS and Android applications using React Native and native stacks, tightly integrated with scalable backends. As PHP full-stack developers, we handle both greenfield builds and complex legacy modernization. We regularly work as: - full-stack web development teams on SaaS, ERP, CRM, POS, LMS, and Web-to-Print platforms - full-stack squads on marketplaces, fintech, and data platforms - Python full-stack teams on automation and analytics pipelines - PHP Laravel Angular teams on enterprise systems - React and front-end full-stack teams on complex UI platforms - full-stack AI teams on ML-powered products Our experience includes: - 100+ SaaS and CRM platforms launched from scratch - 300+ automation tools built - 150+ POS, Web-to-Print, and location-aware applications delivered - platforms serving 20M+ users with 99.99% uptime - ERP systems reducing operational overhead by 40%+ - web automation saving 1,000+ hours per month per client We handle the full spectrum: system architecture, development, DevOps, CI/CD, Docker, AWS, GCP, Apache, Nginx, and long-term maintenance. We design systems that scale in production, survive real-world usage, and support sustainable business growth. Whether you need a web developer to extend your platform, a React developer to rebuild your frontend, a WordPress developer for custom CMS logic, a mobile app developer to complement your product, or a full-stack AI team to connect data, automation, and intelligence, we bring decades of hands-on experience and production-grade delivery.
Valery M. has worked .
Dmytro U.
$45/hr
100% Job Success
$100K+ earned
Available now
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🔵 15+ years developing first-class web, mobile and AI apps that achieve business goals and hit the mark. As an AI developer and web developer, my expertise led my team to work with Fortune 500 companies such as Philip Morris, Coca-Cola, DANONE, McDonald’s (Ukraine), and Kimberly-Clark. I started as a programmer in 2006. Now, I'm CTO at Brights — a software company focused on web, mobile and AI products, with 120 person engineering team who specialize in AI Chatbot systems, advanced AI Integration solutions, AI Saas web and mobile app development. As a deal closer, I also work closely with clients during product strategy and delivery. I support companies through every stage of development backed by experienced AI developer, AI Chatbot, AI API Integration developer — from MVPs to scaling including AI developer | AI Chatbot | AI API Integration Our experience includes API integration, complex API integrations, and enterprise-grade AI API Integration. Within the last 14 years, I have delivered 330+ projects across fintech, insurtech, healthcare, eCommerce, real estate, education, logistics, and more as an AI developer | AI Chatbot | AI API Integration developer. 👩‍💻 Technical stack I cover as an AI developer | AI Chatbot | AI API Integration: Front-end: • Vue.js, React, Angular, Next.js, Redux, react native Back-end: • ASP.NET, PHP, Node.js, GraphQL Mobile: • React Native, iOS, Android, with support from a dedicated Mobile app developer and Flutter developer as well as Mobile game developer Artificial Intelligence tech stack I cover as an AI developer | AI Chatbot | AI API Integration: • Python developer workflows, LangChain, GPT-4o, gpt-3, OpenCV, Hugging Face, RAG, LLM, AI machine learning, and scalable machine learning pipelines Data & Architecture: • PostgreSQL, MongoDB, Redis, Elasticsearch for both mobile app marketing and web • Supported by experienced data scientist and full stack developer teams Integrations: • Analytics, CMS, Swagger, botpress, chatbots, AI API, and automation systems with reliable API integration 🏆 I deliver web and mobile solutions since 2011 and have 15+ years building custom software with 330+ products shipped as an AI developer 🌍 As an AI developer I worked with clients in 30+ countries - SMBs to Fortune 500 ⭐️ 5.0 on Clutch · ISO / IEC 27001 certified 🔁 89% client retention and 36-month average partnership 📈 As an AI developer and AI Chatbot specialist I scaled products to 100M+ users (Headway project) and 50M+ installs (BetterMe project) ⚡️ Handled 2M users/ hour at peak and delivered 10x API performance (Yasno project) as a AI Chatbot | AI API Integration specialist 💰 10x infrastructure cost cut and < 0.1% launch defect rate (Shugaland project) 🤖 AI in production: agents, RAG & computer vision · up to 80% expert-level accuracy delivered as an AI Chatbot | AI API Integration and AI developer 🔗 50+ integrations: Stripe, Twilio, OpenAI, Shopify, HubSpot, Vimeo & more (треба перевірити *) 💼 Trusted by PMI, Suzuki, Avis, Samsung, Mastercard & Microsoft 🔒 Production-grade, secure code your team can maintain 🔗 As an AI API Integration specialist I work with Stripe, Twilio, Google Maps, Vimeo, Okta, HubSpot, GA4, QuickBooks, LiqPay, BankID, Nova Poshta, Plate Recognizer, IMATAG, Mixpanel, and dozens more. If you are looking for AI developer | AI Chatbot | AI API Integration or AI Automation specialist with strong mobile app design experience (Figma mobile app) - drop me a line.
Dmytro U. has worked .
BRIGHTS
Associated with
BRIGHTS
$100K+
earned
Damanpreet K.
$20/hr
100% Job Success
Offers consultations
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I am an expert mobile app developer. Using React Native/Kotlin/Swift, I create well-designed, elegant, user-centered cross-platform (Android and iOS) mobile apps. Alongside mobile engineering, I specialize in integrating modern AI capabilities and automation workflows into applications—helping businesses launch faster and create smarter user experiences. I love React Native and have been using it to develop a variety of apps for clients ever since it came out. 𝐖𝐡𝐚𝐭 𝐭𝐡𝐢𝐬 𝐦𝐞𝐚𝐧𝐬 𝐟𝐨𝐫 𝐲𝐨𝐮: I have the ability to produce an Android and iOS app in half the time it usually takes a developer to produce just a single platform app. 𝐀𝐛𝐨𝐮𝐭 𝐦𝐞: I am easygoing and passionate software developer focusing on Mobile development and mainly React Native, looking for apply my academic and work experience which is gained in this field to develop complex projects with efficiency and quality. My most common workflow is Trello, Slack, Github, VSCode, Powershell, Expo, React Native, Firebase, email. 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥𝐬 • Firm grasp of the JavaScript and TypeScript, including ES6+ syntax • Strong experience with React Native • Experience with flutter • Redux-Saga and Redux-Thunk • React Hooks • Integration with RESTFul APIs • Integration with GraphQl and Understanding of Apollo Client • Local state management (Cache) • React Navigation and React Router • Experience with Push-Notification • Experience with GoogleMaps Sdks in React native ( iOS & Android) • Experience with graphs tools (Charts... etc ) • Experience Multi language Feature • Strong Experience with Sentry (errors tracking dashboard) • Strong Experience with code push( OTA ) • Experience with Firebase • Basic Knowledge e2e Testing • Basic Experience about unit testing • Strong knowledge of GitLab, GitHub and bitbucket 𝐀𝐈 & 𝐌𝐨𝐝𝐞𝐫𝐧 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐂𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬 • AI feature integration (OpenAI, LLM APIs, AI assistants) • AI chat experiences & conversational interfaces • Prompt engineering & AI workflow integration • Mobile AI automation features • AI-powered recommendations & personalization • Voice-enabled experiences • OCR & document processing • Analytics-driven product improvements • SaaS and subscription-based mobile products 𝐒𝐭𝐫𝐞𝐧𝐠𝐭𝐡𝐬: • My code is almost always re-usable, which allows me to make new apps much quicker. React Native also is extremely fast. • I use version control to make sure features are ready before being introduced. • I use Expo Updates so you can visibly see progress on the app daily. • I am very flexible with time schedules, app requirements, and so on. • I have a library of components to pull from, making common apps very simple for me to make. I enjoy making apps, so if you have an app idea and want it made, let me know and I can give you an estimate on how long it would take me to get it made, or even make a demo. Any changes or recommendations mid-development are fine, as I will be working FOR you.
Damanpreet K. has worked .
Muhammad B.
$20/hr
100% Job Success
Available now
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Hi, I'm Bilal. I help startups ship production-ready AI apps in weeks, not months. 7 years on Upwork | 43 projects | 100% Job Success | $100K+ earned | Top Rated Plus (top 3%) | Every project, 5 stars What I Build: AI-powered mobile apps with React Native + Expo (iOS & Android) Full-stack web apps with Next.js + React + TypeScript AI features: ChatGPT integration, conversational assistants, LangChain workflows, RAG pipelines Recent Wins: Menu Order AI Restaurant ordering app with AI menu recommendations. React Native, Node.js, OpenAI API. Both stores, first submission approved. RV Help AI troubleshooting chatbot for RV owners. React Native, Node.js, OpenAI API, LangChain. Zero rejections. My Stack: Frontend: React, React Native, Next.js, TypeScript, Tailwind Backend: Node.js, Express, Supabase, Firebase AI: OpenAI API, LangChain, RAG, Chatbots Mobile: React Native, Expo (App Store & Play Store) Tools: Cursor, Replit, Loveable, Claude, Why Clients Keep Coming Back: Clean, maintainable code. Clear communication. On-time delivery. Zero App Store rejections in 7 years. If you're building an AI app or mobile product, let's talk. Highlighted Skills: React.js | Next.js | Vue.js | Nuxt.js | Angular | Svelte | SvelteKit | Tailwind CSS | Material UI | Ant Design | Bootstrap | ShadCN UI | Expo | Node.js | Express.js | NestJS | Django | FastAPI | Flask | Laravel | Spring Boot | Ruby on Rails | REST APIs | GraphQL | WebSockets | Stripe | Node.js | Backend API Integration | App Store | TestFlight 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 | Hybrid App Development | React Native Developer | Flutter Developer | Xamarin Developer | AI App Developer | AI App | Mobile App UI/UX | App Developer | Mobile App Development Consultation | IT Consultation | MVP Development | SaaS Application Developer | Cloud-Based App Developer | Progressive Web App Developer | Backend Developer | Frontend Developer | MERN Stack Developer | MEAN Stack Developer | App Store Deployment | Google Play Deployment | App Optimization | App Maintenance & Support | Automation App Developer | Chatbot Developer | Machine Learning App Developer | NLP App Developer | AI Recommendation System Developer | Computer Vision App Developer | Generative AI App Developer | Startup App Development | Business App Solutions | Real-Time App Development | App Security & Data Privacy AI Development Tools (Like Replit & Lovable): Replit | Lovable AI | Cursor AI | GitHub Copilot | Codeium | Windsurf AI | StackBlitz | Glitch | Vercel AI | Firebase Studio | Bolt.new | CodeSandbox | Continue AI | Tabnine | Amazon CodeWhisperer | Mutable AI | Sourcegraph Cody | Sweep AI | Devin AI | Aider | OpenHands | Hugging Face | OpenAI API | TensorFlow | PyTorch | LangChain | RunPod | Weights & Biases | Streamlit | Gradio | ElevenLabs | DeepL API | Stability AI | Lobe AI | Peltarion | Cortex AI | AI21 Labs | Cohere | Replicate
Muhammad B. has worked .
$8/hr
$1K+ earned
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Senior Flutter & Android Developer| Building Scalable Mobile & Backend Solutions With over 4 years of expertise in Flutter (Dart) Android (Kotlin) and backend development Portfolio & Live Work: sagarjamdhade.netlify.app i help startups and businesses build scalable, high-performance mobile applications with Flutter, Kotlin, and modern backend systems. My apps are optimized for performance, security, and great UI/UX , I help entrepreneurs and businesses turn their visions into high-performance scalable mobile applications seamlessly integrated with robust backend systems. I deliver complete, future-proof solutions. I have successfully launched apps for clients in Germany and Canada focusing on clean architecture smooth user experience and on-time delivery. ✅ What I Do Best • Cross-platform apps with Flutter (Dart) • Native Android apps with Kotlin & Java • Modern Android frameworks: Jetpack Compose, MVVM, Hilt • Firebase (Firestore, Realtime DB, Push Notifications, Cloud Messaging) • REST API integration, Google Maps, Room & SQLite 💻 Backend Development Expertise • Languages & Frameworks: Node.js, Express.js, Java (Spring Boot), PHP (Laravel), Python (Django/Flask) • Databases: MySQL, PostgreSQL, MongoDB, Firebase • APIs: RESTful APIs, GraphQL • Cloud & Hosting: AWS, Google Cloud, Heroku • Authentication & Security: JWT, OAuth2, Firebase Auth 🎯 Why Clients Choose Me End-to-end solutions: Mobile + Backend Clean, maintainable, and scalable code Strong problem-solving & optimization skills On-time delivery & clear communication Let's connect to discuss how we can build an application that not only meets your users' needs but also scales with your business growth. Sagar Jamdhade Senior Flutter &Android Developer
$20/hr
100% Job Success
$100K+ earned
Available now
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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.
Arjun G. has worked .
DigiMantra Labs
Associated with
DigiMantra Labs
$2M+
earned
Sumit O.
$35/hr
100% Job Success
$400K+ earned
Available now
Offers consultations
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⚡ AI NATIVE WEB & MOBILE APP DEVELOPMENT As Chief Architect of Wegile, I lead a team that builds web and mobile apps — new builds and legacy modernization — the AI-native way: senior architects using AI across the entire build, so you ship 40% faster, at lower cost, without sacrificing quality or control. ✅Top Rated Plus · ✅ 100% Job Success · ✅ $6M+ delivered · ✅ 400+ projects · ✅340,000+ hours This isn't vibe-coding or an AI wrapper. It's a production AI team with real AI governance — every AI-assisted line reviewed by senior architects, with security, testing and quality gates built in. You get startup speed with enterprise-grade quality. ✅ 40% Faster Delivery — AI-native workflow, senior architects in the loop ✅ More Cost-Effective — less time to ship means lower cost to you ✅ AI Governance — eval, guardrails, security & code review on every build ✅ Top Quality — 100% Job Success, production-grade, built to scale ✅ Top Rated Plus — awarded by Upwork (Top 3%) ✅ 100% Job Success Score ✅ 20+ Years Experience · Founder of Wegile (since 2013) ✅ 100+ Senior Architects across every discipline ✅ 80% Long-Term Repeat Clients · under 5% team attrition ✅ Trusted by Startups & Enterprises across US, UK, Canada & Australia ✅ Fluent English · Transparent, Milestone-Driven Delivery You don't just need a developer. You need a team that ships — fast, governed, and right the first time. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ WHY AI-NATIVE = FASTER, CHEAPER, BETTER ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ AI accelerates every stage — discovery, architecture, code, testing ✅ Senior architects govern every step — no junior guesswork, no rework ✅ 40% faster to production than traditional agencies ✅ Lower cost without cutting corners on quality or security ✅ Built to scale to millions of users from day one ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🚀 TWO WAYS TO START — LAUNCHPAD ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ A fixed-price, fast way to get a production-ready AI-native foundation before we scale. ✅ LAUNCHPAD PRO — for NEW products ($4,999, live in 5 business days) Your complete AI-native architecture, built from scratch. No legacy, nothing to migrate — your team ships code on day 6. Best for: founders & startups launching a new app or MVP who want it built right from day one. ✅ LAUNCHPAD ELITE — for EXISTING / legacy products (from $9,999, 10–15 days) We audit your existing codebase, modernize the infrastructure, and rebuild your workflow into an AI-governed pipeline — without disrupting live systems. Best for: companies with an app built before AI who want it faster, safer and AI-ready without a risky full rewrite. After LaunchPad: continue with a dedicated AI-native pod or fixed-scope delivery. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📱 WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ iOS & Android Apps (Swift, Kotlin, Flutter, React Native) ✅ Web Apps & Platforms (React, Next.js, Node, Python) ✅ AI-Powered Apps — LLMs, AI Agents, RAG, Computer Vision, GPT-4o & Claude ✅ MVPs — production-ready, fast ✅ Health & Fitness · FinTech · Real Estate · E-commerce · Social · GPS/BLE/IoT ✅ Food Delivery · Booking · Streaming · Voice/Video · Dating apps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🏆 PROOF (REAL OUTCOMES) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🥇 Built an AI sales agent (SDR + WhatsApp/Meta omnichannel) now in production for one of Latin America's largest real-estate platforms 🥇 Engineered AI vitals-from-a-phone-camera apps + SDKs — work continued straight through the company's acquisition 🥇 Guided a fitness app past $250K monthly recurring revenue 🥇 Helped a charging-station network secure multimillion-dollar Series-A funding ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ TECH STACK ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ◉ AI/ML: GPT-4o, Claude, LangChain, RAG, Vector DBs, AI Agents, TensorFlow, NLP, Computer Vision ◉ Mobile: Swift, Objective-C, Kotlin, Java, Flutter, React Native ◉ Web: React, Next.js, Node.js, NestJS, Python, Django, PHP, Laravel ◉ Cloud/DevOps: AWS (Lambda, API Gateway, ECS, S3), Firebase, Docker, CI/CD ◉ Data: PostgreSQL, MySQL, MongoDB, Pinecone, Supabase, Firestore ◉ APIs: Stripe, PayPal, Braintree, Twilio, WhatsApp/Meta, WebRTC, Maps, REST, GraphQL ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🚀 READY TO BUILD? ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Whether you're a startup launching an MVP or an enterprise scaling a product — I'll show you how AI-native delivery gets it built faster, for less, without compromise. Click MESSAGE or INVITE TO JOB for a 15–30 min strategy call. 🤝
Wegile
Associated with
Wegile
$6M+
earned
$30/hr
40% Job Success
$6K+ earned
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Hi, Let's Code Solution Save Money And Make Money For You!! A No-nonsense Full Stack Developer and Designer with 12 years experience. —Only Offer a Save Money + Make Money golden solutions —With transparent pricing ,no need to compare quotes. Web/Mobile APP,E-commerce,Shopify,AI Agent,watch... I expert in AI agent, Shopify, WordPress, Woo-commerce, PHP, Magento, Flutter,CodeIgniter, Swagger API, Weebly, HTML 5, CSS3, Bootstrap, Pure JavaScript, Responsive-Web-Design, Graphic Design, Photoshop, Illustrator, Corel draw, SEO(on-page, off-page). Rich algorithm experience: Responsible for the project architecture of a ToC project that grew from 0 users to 30 million daily active users. Proficient in Spring Cloud, various Internet storage frameworks (with project experience of modifying Redis based on company business requirements), and various big data frameworks (such as Spark, MP, Druid, etc.). Have extensive experience in project architecture and core code writing. Have complete experience in building a microservice architecture from scratch: Practical experience in ultra-high concurrent recommendation systems. A full-stack engineer, especially proficient in Flutter,Java, Kotlin, Python, and Dart. Proficient in using C++ and GLSL, and have maintained coding ability for twelve years. Have experience in the architecture and team management of information flow recommendation systems and advertising recommendation systems based on big data mining Have practical core code development experience in building a 3D engine from scratch. Have the earliest algorithmic practice, development, and application experience in AIGC, as well as engineering experience.Have experience in managing a team of 100 people. Other advantages: Have complete experience in designing and developing a mobile 3D animation engine from scratch. The camera algorithm of the engine has obtained a national patent certificate. Proficient in traditional 3D animation modeling, skinning, texturing, skeleton, and action animation processes. Have complete AI animation rendering practice experience. Have designed and implemented the entire system framework and algorithms that can directly generate 3D animation videos from a text input. This includes implementing a GPU concurrent scheduling and mining machine deployment system similar to K8S for ToC product use. Technical Skills & Expertise • CMS: Wordpress, Shopify , Wix, Webflow, Squarespace, Magento, • Framework: Laravel • Shopify Store Setup , Theme installation, theme customization , Apps installation , coding. • Wix Site setup , Theme installation, theme customization . • Webflow Site setup , Theme installation, theme customization . • Building custom web applications using PHP, MySQL, HTML5, CSS3, Cake PHP. • Wordpress Plugin Development & CMS Development • Magento 2 theme design/develop/install , customization etc • Magento E-commerce Solutions, Custom Extensions Development & Multi-Store Development I am creating clean, extensible code using best practices and design patterns. I will be glad to cooperate on short and long-lasting projects. Wordpress | Shopify | Wix | Webflow | Squarespace | Magento | Laravel | Php | Go high level FLUTTER experience
Associated with
Aicraft