React web development expert | 80+ shipped projects | fast-loading products that scale and actually make money ABOUT ME 8+ years and 42+ products as a Full Stack Developer React Node in SaaS Platform, MVP, AI-Powered and Web Application delivery $3.8M+ client impact, $900K+ direct revenue volume as a React Developer 20,000+ active users across Web + Mobile Apps where Frontend React Developer execution with n8n supabase lifted engagement by 18–27%. 10,000+ users in Healthcare Web Application and HIPAA-Compliant systems where Frontend React Developer (flutterflow, v0, aws) ownership cut admin friction by 40%. 2,423 completed orders, 489 registered customers in Ecommerce Website and CRM Platform MVP as a Full Stack Developer React Node. 90% faster order processing, 80% lower manager workload through Workflow Automation, Document Workflow, and Frontend React Developer improvements. 1,666+ catalog items, 4-role access, 2.7x operational capacity in B2B Marketplace and Registration and CRM System as a Full Stack Developer React Node. 5–8 weeks shorter MVP to Pilot Launch, 35% fewer bugs through Existing Codebase and Productionise work as a Full Stack Developer React Node $900K+ in client revenue as react next js developer, and 8 years as web app developer react / react app developer 8+ yrs. Senior Full-Stack Engineer $3.8M+ client impact, end-to-end ownership as Full Stack Developer React Node 18–27% engagement lift, clarity and trust as Frontend React Developer 30–40% faster cycles, cleaner UX, stronger retention across SaaS Platform products as React Developer WHERE I DELIVER As a Frontend React Developer - 20+ systems with UI Development, UI/UX, Dashboard Build, Responsive UI Build across SaaS Platform, Booking Platform, Ecommerce Website. As a React Developer - 15+ launches in full stack developer nextjs environments, 30–40% faster iteration through Design-to-Code and Component Development. As a Full Stack Developer React Node - 25+ end-to-end builds with Backend API, Backend System Development, Data Architecture, Secure, Scalable architecture from Early-Stage MVP to Live SaaS Platform. As a frontend developer react, front end developer react, react native expo - web design, UI Polish ( ux designer ), front end development improving conversion by 15–22%. 10+ deployed mobile app in app and google play store as react native developer expo, react native app developer. 12–19% better repeat usage through booking, notifications, payments as front-end developer flutter and mobile app developer. As a frontend developer angular, python developer, python full stack developer django - 12+ backend-heavy products, 28% lower delivery risk ( nodejs ). As a Full Stack Developer React Node - 6–18 month cycles through Scale Existing Platform, Professionalize & Scale, Review, Improve & Launch as a Long-Term Development Partner. As a full stack react developer and full stack developer supabase react - 99%+ delivery consistency across distributed teams. INDUSTRY IMPACT Marketplace Platform, B2B Marketplace, Two-Sided Marketplace, B2B Services - 50,000+ active listings, 20%+ better lead quality, and a 35% increase in conversion rates as a Frontend React Developer and Full Stack Developer React Node handling $2M+ in monthly transaction volume. Healthcare Web Application, Clinic Management SaaS, Telehealth, HIPAA-Compliant - 10,000+ active users, 500+ daily appointments processed, 25%+ better staff capacity, and 15% fewer patient no-shows as a Frontend React Developer maintaining 99.9% system uptime. AI-Powered - 5+ products deployed, Custom AI Solutions, AI Agent Platform, AI Chatbot, RAG Chatbot, OpenAI, Claude API, FastAPI as a React Developer and Full Stack Developer React Node, processing 15,000+ daily prompts and reducing manual query resolution time by 40%. Logistics Platform, ERP, Internal Workflow Management System, Owner Dashboard - up to 12 hours saved per order cycle, 30%+ faster reporting, and a 40% reduction in data entry errors across 5+ regional hubs as a Full Stack Developer React Node. Research Platform, LegalTech SaaS, Fintech MVP, PropTech MVP - 18% better adoption, 40% higher user retention over 6 months, and structured permissions managing 3 distinct access levels for 5,000+ users through Frontend React Developer HOW I BUILD 25+ products as a Frontend React Developer: java react, react.js, react native mobile, react next tailwind frontend, javascript, typescript, html, html5, css3, Tailwind CSS, React Bootstrap frontend, Responsive Design, jQuery. 15+ systems as a Full Stack Developer React Node: supabase postgres, laravel, MySQL, MongoDB, firebase, stripe. Integrations across payment, maps, auth, and third-party APIs. 10+ ecosystems: wordpress developer, shopify, web3 frontend, php, .net, flask, vue.js, svelte, webflow, mern stack as a react js developer and react web developer. 40+ products: git, Software Development, Software Architecture & Design, Front-End Development with engineer mindset.

✅ Top Rated on Upwork ✅ 610+ Hours My name is Adel and thank you for checking my profile, I have over 13+ years of extensive experience in frontend engineering, and 7+ years with backend development and more years in UI/UX design i have developed a lot of complex and enterprise web applications and websites and CMS development and i have helped many companies to consult and define rich frontend frontend architecture. My skills: ✔ Web Applications ✔ Web Sites ✔ CMS Development ✔ Backend & API Development ✔ Full-Stack Web Applications ✔ Secure Systems & IAM ✔ Security Audits & Best Practices Technologies I use ✔ React.js / Next.js ✔ TypeScript ✔ Svelte / SvelteKit ✔ Vue.js(2/3) / Nuxt.js(2/3/4) ✔ HTML / CSS3 ✔ BEM / SCSS/SASS, SVG, Animation ✔ Ruby on rails ✔ Webpack, Vite Tools I use: ✔ Claude Code ✔ Sketch / Figma / Zeplin / Invision ✔ Jetbrains Products ;) ✔ Visual Studio Code Have any questions? Want to discuss your project? Feel free to contact me anytime just drop me a message! Have a nice day :)

I’m a Senior Full Stack Developer with a decade of experience delivering Next.js and React-based web apps and building AI-powered automation systems. I help businesses create modern, fast websites while integrating AI chatbots, OpenAI APIs, and automation workflows that save time and boost results. What I Do: ✅ Next.js & React Development ✅ AI Chatbot Development (OpenAI, Assistants API, GPT-4) ✅ Business Automation with Zapier, Airtable, Google Sheets ✅ API Development & Integration (Node.js & Python) ✅ Full Stack Solutions (MongoDB, PostgreSQL, Railway, Vercel) Core Skills: • Next.js, React.js, TypeScript • Tailwind CSS, Material UI, Ant Design • Node.js, Python (FastAPI, Flask) • OpenAI API, Assistants API, Chat Completions, Streaming API • Embedding AI chatbots into Next.js apps • Zapier automation, Airtable workflows, TradingView API integration • Firebase, Apollo GraphQL, REST APIs • MongoDB, PostgreSQL, Railway Why Clients Hire Me: • I build modern, scalable apps with fast loading, great UX, and SEO • I help teams automate workflows with AI and tools like Zapier & Airtable • I implement AI chatbots and conversational UIs inside existing web apps • I bridge frontend + backend + AI, providing full-stack, production-ready solutions • I’m reliable, easy to communicate with, and focused on business impact 🕒 Availability: Mon-Fri, 9:00 AM - 5:00 PM EST Client feedback: “An incredible developer who can turn complex requirements into simple, effective solutions.” If you want to bring AI, automation, and modern UX into your app, let’s talk!

Building a web app that needs to impress? Or a game that must run smoothly everywhere? I do both, and I do them well. (github.com/elcozy) My frontend development transforms your Figma designs into responsive React, Next.js, or vanilla JS applications that load fast and scale seamlessly. Think dashboards, landing pages, and web platforms built with clean TypeScript and modern best practices. My HTML5 PixiJS game development creates engaging HTML5 experiences that run at max FPS on any device. From casual games to complex interactive experiences, I handle sprite animation, physics, asset optimization, and responsive controls that feel native on both desktop and mobile. What you get with every project: Speed: Applications that load fast, games that maintain smooth FPS Smooth Gameplay: Optimized PixiJS rendering with efficient asset management Responsive Design: Perfect experiences across all devices and screen sizes Quality Code: Clean TypeScript that's easy to maintain and scale Mobile-First: Everything tested and optimized for touch interfaces Real Results: Delivered sports gaming platforms, portfolios, and high-traffic web apps Responsive Communication: Quick replies to messages and smooth collaboration throughout Frontend or game development, whichever you need, you get expertise, speed, and results. Let's build something exceptional together.

𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐒𝐚𝐚𝐒 & 𝐌𝐕𝐏 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 𝟏𝟓+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐮𝐬𝐢𝐧𝐠 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐏𝐲𝐭𝐡𝐨𝐧, 𝐚𝐧𝐝 .𝐍𝐄𝐓 𝐟𝐨𝐫 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬 𝐚𝐧𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐜𝐨𝐦𝐩𝐚𝐧𝐢𝐞𝐬. I work with founders and product teams from day one, helping them validate ideas, build MVPs, and scale into production-ready platforms. My focus is not just clean code, but business outcomes: faster time-to-market, scalable architecture, and features that truly matter to users. I also work with a strong engineering team covering full-cycle development- frontend, backend, DevOps, QA, cloud, and AI integration, so projects never face skill gaps. ➤𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐇𝐄𝐋𝐏 𝐘𝐎𝐔 𝐖𝐈𝐓𝐇? ============================= ▸ 𝐍𝐨𝐝𝐞.𝐣𝐬 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Scalable backend systems using Node.js with Express/NestJS, REST & GraphQL APIs, microservices architecture, performance optimization, MongoDB/PostgreSQL/MySQL integration, JWT/OAuth2 authentication, real-time systems with WebSockets, and production-ready APIs with logging and error handling. ▸ .𝐍𝐄𝐓 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Enterprise-grade backend systems using ASP.NET Core, REST APIs, microservices, Entity Framework Core, SQL Server integration, secure authentication (JWT/Identity Server), scalable architecture, performance optimization, and production-level monitoring and security. ▸ 𝐏𝐲𝐭𝐡𝐨𝐧 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Backend systems using FastAPI/Django/Flask, high-performance async APIs, PostgreSQL/MySQL/MongoDB integration, Celery + Redis background processing, data pipelines, automation workflows, third-party API integration, and modular clean architecture. ▸ 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 End-to-end applications using React with modern state management (Redux, Zustand, React Query), backend in Node.js/.NET/Python, API integration, database design, authentication systems, payment integration, real-time features, cloud deployment (AWS/Azure/DigitalOcean), and CI/CD pipelines. ▸ 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 AI-driven systems using OpenAI, Claude, and LLM APIs, chatbot and automation APIs, multi-agent workflows, AI microservices with Node.js/Python, prompt optimization, RAG systems, and real-time AI integration for web and mobile apps. ➤𝐓𝐎𝐎𝐋𝐒 & 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐈𝐄𝐒 ========================== ▸ 𝐍𝐨𝐝𝐞.𝐣𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Node.js • Express.js • NestJS • TypeScript • REST APIs • GraphQL • MongoDB • Mongoose • PostgreSQL • MySQL • JWT Authentication • OAuth2 • WebSockets • Redis • Docker • CI/CD Pipelines • AWS • Azure • DigitalOcean • Winston Logging • PM2 Process Manager • Sentry Monitoring ▸ .𝐍𝐄𝐓 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • ASP.NET Core • .NET 6+ • C# • Entity Framework Core • SQL Server • Microservices Architecture • Identity Server • Azure & AWS Integration • Docker • Swagger / OpenAPI • Serilog • Application Insights • Azure DevOps • GitHub Actions ▸ 𝐏𝐲𝐭𝐡𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Python • FastAPI • Django • Flask • SQLAlchemy • Celery • Redis • Pandas • NumPy • Docker • Kubernetes • JWT Authentication • OAuth2 • CI/CD Pipelines • Monitoring & Logging Tools ▸ 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • React • Redux • Zustand • React Query • Tailwind CSS • Material UI • Bootstrap • REST APIs • GraphQL • Git • GitHub • GitLab ▸ 𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • OpenAI API • Claude API • LangChain • LlamaIndex • RAG Systems • AI Workflow Automation • Prompt Engineering • Real-time AI APIs ➤ 𝐖𝐇𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄? ============================ • Production-ready backend and full-stack systems with scalable architecture and high performance • Strong experience in REST APIs, microservices, and real-time systems • Focus on security, authentication (JWT/OAuth2), optimization, and scalability • Experience building SaaS platforms, automation systems, and API-driven products • Post-deployment support up to 30 days for stability and improvements 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐁𝐮𝐢𝐥𝐝 𝐘𝐨𝐮𝐫 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐨𝐫 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧? Send me a message to discuss your project requirements. I can help you build high-performance backend systems, scalable fullstack applications, SaaS platforms, and AI-powered APIs tailored to your business needs. 𝐋𝐞𝐭’𝐬 𝐭𝐮𝐫𝐧 𝐲𝐨𝐮𝐫 𝐢𝐝𝐞𝐚 𝐢𝐧𝐭𝐨 𝐚 𝐬𝐞𝐜𝐮𝐫𝐞, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧-𝐫𝐞𝐚𝐝𝐲 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐭𝐡𝐚𝐭 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐬 𝐫𝐞𝐚𝐥 𝐫𝐞𝐬𝐮𝐥𝐭𝐬!

Over 5 years of experience in Web Development. Top rated freelancer on Upwork. Completed over 10 projects for businesses of various sizes from around the world. Have an excellent expertise in: • Technical SEO ( Google Page Speed optimization, schema markup and other) • HTML/CSS(sass, scss, tailwind) • JavaScript, Typescript • Modern frameworks (React, Next, Vue3, Svelte, SvelteKit, SolidJS, Astro)

- Over 9 Years of Web Development Experience - Top Rated Expert with 100% Job Success & 5-Star Track Record. - 4 Years of Tech Educator experience (2019-2023) I build high-performance web architectures designed to scale on Vercel from day one. As a Senior Architect / Web Developer and former Tech Educator of 4 years, I am pretty good with communicating concepts to different audiences, at both a higher and lower level. I don’t just ship features—I architect clean, maintainable systems that your team can actually manage after hand-off. 1. Full-Stack Web Architecture: • Frontend: Next.js, SvelteKit, TypeScript, Tailwind CSS, SVG Animation • Backend: Node.js, Python (Django/FastAPI) • Databases: PostgreSQL, MongoDB 2. AI & Agentic Data Solutions: • Architecting Agentic RAG Systems (LlamaIndex) • Vector Database Optimization (ChromaDB) • Advanced Prompt Engineering (Claude Models) 3. Infrastructure & DevOps: • Vercel Deployment Optimization & Edge Functions • CI/CD Pipelines (GitHub Actions, Vercel) • AWS Services (EC2, S3) 4. Video Game Development • Unreal Engine Development for AR & VR projects • Meta Oculus, iOS & Android

I’m a Frontend / Fullstack Developer with 10+ years of experience building fast, scalable, and user-focused web applications. I specialize in modern JavaScript ecosystems (Next.js, SvelteKit Node.js) and have hands-on experience delivering production-ready solutions—from clean UI implementation to robust backend integrations. What sets me apart is how I leverage AI-assisted development workflows: - I use modern AI tools to speed up development without sacrificing code quality - I can quickly identify and fix issues in AI-generated code, preventing hidden bugs and technical debt - I integrate AI where it actually adds value—not just hype What I can help you with: - Responsive, high-performance frontend development - Fullstack web apps (API + UI) - Debugging and improving existing codebases - Optimizing performance and user experience - AI-assisted feature development and automation I focus on writing clean, maintainable code and delivering results that are reliable long-term—not just quick fixes.

I am a communications and electronics engineer by trade, self-taught software developer, and a open source software enthusiast.

Do you have an app or website you created with AI that seems to work fine initially? Then, once users started hitting it, everything fell apart, leaving your customers frustrated and your profits diminished? Are you feeling lost, unable to get Claude or ChatGPT to fix those pesky niche technical issues? I'm the guy you're looking for. I will audit your codebase for vulnerabilities, bugs, errors, and performance concerns, and develop a strategy for tackling those issues. I will bulletproof your product, making sure it stands up to real-world use and is protected against security exploits. In the process, I will rework your system architecture to withstand pressures that arise as your product grows. Don't be left stranded with a codebase with a ton of performance and security issues that can't scale well. Hire me, and your codebase will be in good hands.