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⭐ a Top Rated freelancer with over 4+ years of experience, I specialize in building AI-powered full-stack applications using LLMs, RAG pipelines, and intelligent AI agents. From fast MVPs to production-ready platforms, I deliver scalable solutions tailored for startups and enterprises alike. 💡 What I Bring to Your Project: 🔹 AI & LLM INTEGRATIONS ✅ OpenAI, Claude, Gemini, Mistral, Llama ✅ LangChain, RAG pipelines (Retrieval-Augmented Generation) ✅ AI Agents (task automation, multi-step planning) ✅ Vector databases: Pinecone, Weaviate, ChromaDB ✅ Prompt engineering, embeddings, tools & memory integration 🔹 BACKEND DEVELOPMENT ✅ Python (FastAPI, Django) ✅ Node.js (NestJS, ExpressJS) ✅ C# (.NET Core) ✅ RESTful API & WebSocket architecture 🔹 FRONTEND DEVELOPMENT ✅ React.js, Next.js, Redux, TypeScript ✅ Tailwind CSS, MUI, Bootstrap, HTML/CSS ✅ Figma to Code, Responsive & Mobile-First UI 🔹 DATABASE & INFRASTRUCTURE ✅ PostgreSQL, MySQL, MongoDB ✅ Supabase, Firebase, Prisma, NextAuth ✅ Docker, NGINX, GitHub Actions, Jenkins, PM2 ✅ AWS, GCP, Azure (deployments, scaling, CI/CD) #LangChain #RAG #OpenAI #LLMs #FastAPI #NodeJS #ReactJS #NextJS #Supabase #Prisma #Python #TypeScript #VectorDB #AIagents #MERNStack #NestJS #FullStackDeveloper #Chatbot #Backend #Frontend #PromptEngineering #CI/CD #GCP #AWS #DevOps

Senior Full-Stack Mobile Dev (8+ YoE) - helped startups and enterprise companies generate $10M+ in revenue. Expertise: Flutter, Node.js, Spring Boot, FastAPI, Android (Kotlin), iOS (Swift) and Kotlin Multiplatform. I build scalable, secure, and production-ready apps for AI, Fintech, B2B, Web3, and Blockchain startups. I take full ownership of your pipeline from architecture and testing to App Store deployment ensuring high performance and clean UX. Cross-platform Development - Flutter (Dart, BLoC, Provider, Riverpod, Dio, GetIt, Injectable, Unit Testing, UI Testing, Integration Testing) Native Android Development Kotlin, Java, Jetpack Compose, Coroutines, Flow, RxJava, Hilt, Retrofit, Room, Espresso, Appium Native iOS Development Swift, SwiftUI, UIKit, Combine, Core Data, Alamofire, URLSession Backend Development Node.js, Express, FastAPI, Spring Boot, MongoDB, Postgres, AWS, Vercel, etc Architecture & Scalability MVVM, MVI, MVP + Clean Architecture, Offline-first architecture Dev Tools & Workflow Android Studio, Xcode, IntelliJ, VS Code, Cursor, Codex, Git, GitHub Actions (CI/CD), Google Play, App Store, TestFlight. Strong test coverage (90%+) across unit, widget, integration and E2E tests for reliability. I'm ready to bring your app idea to life. Let's chat!

🏆 Top Rated Plus Freelancer 🚀 AI Engineer & Full Stack Developer (FastAPI • Next.js • React.js • Node.js • Supabase) 📈 4+ Years Building Scalable Web Apps, AI Systems & Automation 🤖 RAG • LLM Agents • LangChain • LangGraph • Multi-Agent Systems ☁️ GCP • AWS • Docker • CI/CD 👋 Hi, I'm Fetsum. I build high-performance web apps and AI systems trusted by founders, startups, and global teams. Before anything else, here are a few of the real platforms I’ve helped build: → thevillalist.com – interactive luxury villa browsing with maps, CRM automation & AI concierge → tryfinanceiq.com – AI financial reporting (NetSuite), forecasting, KPI dashboards, RAG-powered CFO assistant These projects highlight the kind of end-to-end systems I architect: fast, secure, stable, and deeply integrated with AI. 💡 What I Do Best → I’m a Full Stack & AI Developer with strong experience building: → AI assistants (LangChain, LangGraph, custom agent tools, memory systems) → RAG pipelines (Pinecone, pgvector/Supabase, FAISS) → Web apps using Next.js 14/15 + React + TypeScript → Backend APIs with FastAPI, Node.js/Express, NestJS → Complex data workflows and automation engines → Multi-agent systems using GPT-4o, Claude 3, Gemini, and OpenAI function-calling → I focus heavily on performance, reliability, and scalability, making sure the system you get is production-ready. 🧠 Tech Stack & Skills (Accurate to Experience) 🔹 AI / LLM Engineering → LLMs worked with: GPT-4o, GPT-4 Turbo, GPT-3.5, Claude 3 Opus/Sonnet, Gemini 1.5/2.0 Flash, Llama models → Frameworks: LangChain, LangGraph, Mem0, OpenAI Assistants API → RAG: Pinecone, Supabase pgvector, FAISS, custom embeddings → AI Tools: Function calling, tool-based agents, embeddings, memory systems → Voice AI: Whisper, speech-to-text pipelines → Image AI: DALL·E 3, Vision models, multimodal pipelines 🔹 Backend Development → FastAPI, Node.js (Express.js), NestJS → Microservices, async processing, webhooks, REST APIs → Authentication: OAuth, JWT, role-based access → Payment integrations (Stripe) 🔹 Frontend Development → Next.js, React.js, TailwindCSS, TypeScript → Modern UI patterns, dashboards, real-time updates, charts → Form handling (React-Hook-Form, Zod), i18n, SWR/React Query 🔹 Databases & Cloud → PostgreSQL, Supabase, MySQL, MongoDB → GCP (Cloud Run, Cloud SQL, Storage), AWS (EC2, S3, Lambda), Vercel → Docker, containerization, CI/CD, GitHub Actions → Supabase Auth, Storage, Edge Functions 🔹 Automation → Playwright, proxy rotation, email/IMAP automation → Multi-agent task coordination → Complex workflow automation pipelines 🌟 Why Clients Choose Me: ⭐ AI-first mindset: I design systems that leverage LLMs intelligently, not just wrapped endpoints ⭐ Speed + Quality: clean architecture, maintainable code, no over-engineering ⭐ End-to-end ownership: I can take an idea → design → architecture → full build ⭐ Strong communication: I work with founders, PMs, and dev teams seamlessly ⭐ Problem solving: complex integrations, debugging, scaling, data challenges I’ve built financial systems, EdTech, AI automation engines, multi-agent platforms, and high-performance dashboards. My goal is to ship products that feel polished, fast, and reliable. ✨ Ready to Build Something Exceptional? Whether you're launching an AI assistant, improving your backend, or building a full SaaS platform, I can help architect and deliver it. Send me a message and let’s bring your product to life.

"𝙆𝙞𝙙𝙖𝙣𝙚 𝙞𝙨 𝙖 𝙨𝙪𝙥𝙚𝙧 𝙘𝙤𝙣𝙩𝙧𝙖𝙘𝙩𝙤𝙧. 𝙑𝙚𝙧𝙮 𝙥𝙧𝙤𝙛𝙚𝙨𝙨𝙞𝙤𝙣𝙖𝙡 𝙬𝙞𝙩𝙝 𝙜𝙧𝙚𝙖𝙩 𝙘𝙤𝙢𝙢𝙪𝙣𝙞𝙘𝙖𝙩𝙞𝙤𝙣. 𝙃𝙞𝙨 𝙥𝙧𝙤𝙜𝙧𝙖𝙢𝙢𝙞𝙣𝙜 𝙨𝙠𝙞𝙡𝙡𝙨 𝙖𝙧𝙚 𝙖𝙨𝙩𝙤𝙪𝙣𝙙𝙞𝙣𝙜 - 𝙝𝙚 𝙖𝙡𝙬𝙖𝙮𝙨 𝙬𝙚𝙣𝙩 𝙖𝙗𝙤𝙫𝙚 𝙖𝙣𝙙 𝙗𝙚𝙮𝙤𝙣𝙙 𝙩𝙝𝙚 𝙩𝙖𝙨𝙠, 𝙚𝙣𝙘𝙤𝙪𝙧𝙖𝙜𝙞𝙣𝙜, 𝙝𝙖𝙧𝙙𝙬𝙤𝙧𝙠𝙞𝙣𝙜, 𝙖𝙣𝙙 𝙖𝙡𝙬𝙖𝙮𝙨 𝙙𝙚𝙡𝙞𝙫𝙚𝙧𝙚𝙙 𝙤𝙣 𝙩𝙞𝙢𝙚." - Client, after successful project completion. If you're building an AI-powered SaaS, scaling a platform, or rescuing a project that's gone off the rails - you've found the right developer. I'm a Senior Full-Stack & AI Engineer with 7+ years of experience delivering scalable SaaS platforms, AI-integrated products, and high-performance backend systems for startups, scaleups, and enterprise teams across FinTech, Healthcare, and Education. ━━━━━━━━━━━━━━━━━━━━━━━━━━ 📈 RESULTS I'VE DELIVERED ━━━━━━━━━━━━━━━━━━━━━━━━━━ 🚀 Scaled a FinTech platform from 60K → 400K+ active wallet accounts 🚀 Cut critical API latency by 80% through caching, optimization & indexing 🚀 Built and launched multi-tenant SaaS platforms from zero to production 🚀 Migrated legacy monoliths into modern, scalable microservice architectures 🚀 Delivered enterprise-grade APIs handling millions of requests reliably ━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤖 AI INTEGRATION & AGENTS ━━━━━━━━━━━━━━━━━━━━━━━━━━ AI is where I spend a growing part of my work and I build it practically, not just experimentally. Here's what I've shipped: - AI chatbots that handle real customer queries (not just FAQs) - RAG systems with Pinecone, ChromaDB, or FAISS - grounded in your actual data - Internal assistants trained on your Notion, Confluence, Google Drive, or website - AI agents that run lead gen, research, and reporting workflows autonomously - SaaS workflow automation: HubSpot → n8n → OpenAI → Sheets and beyond - OpenAI, Claude, and Gemini integrations built for production, not demos ━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ AI SaaS MVPs - from architecture to launch ✅ Scalable multi-tenant SaaS platforms ✅ High-performance REST & gRPC APIs ✅ Microservices & event-driven backend systems ✅ Clean, fast frontends with React & Next.js ✅ AI-powered document processing, search & reporting ✅ Legacy system rescue & modernization ✅ CI/CD pipelines, Docker deployments & monitoring ━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ CORE STACK ━━━━━━━━━━━━━━━━━━━━━━━━━━ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: FastAPI · Spring Boot · Node.js · NestJS · Laravel 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: Next.js · React · TypeScript · Tailwind CSS 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: PostgreSQL · MongoDB · MySQL · Redis · Supabase 𝐀𝐈/𝐌𝐋: AI Chatbot · OpenAI · Claude · Gemini · LangChain · RAG · Pinecone · AI Agent Development 𝐃𝐞𝐯𝐎𝐩𝐬: Docker · Coolify · Vercel · GitHub Actions · Jenkins · Grafana 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Stripe · PayPal, Paddle · Twilio · Google Maps 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞: Microservices · Event-Driven · WebSockets · gRPC ━━━━━━━━━━━━━━━━━━━━━━━━━━ 🤝 HOW I WORK ━━━━━━━━━━━━━━━━━━━━━━━━━━ I don't just write code - I take ownership of outcomes. That means: → Asking the right questions before writing the first line → Communicating proactively, not just when there's a problem → Delivering clean, documented, maintainable code your team can build on → Thinking about your product's future, not just the current ticket → Flagging risks early so you're never surprised I'm a full-time freelancer - fully available for both long-term partnerships and focused, high-impact project engagements. ━━━━━━━━━━━━━━━━━━━━━━━━━━ 📬 READY TO START? ━━━━━━━━━━━━━━━━━━━━━━━━━━ Send me a message with a brief description of your project. I'll respond within a few hours with honest feedback, a clear approach, and whether I'm the right fit. Let's build something that works.

Most businesses are sitting on 15–30 hours a week of manual work that custom AI software could handle automatically. I'm an AI Integration Engineer who builds the actual systems — not strategy decks. Custom AI apps, RAG-powered chatbots, n8n automations, and AI-integrated platforms that plug into the tools your team already uses. Top Rated on Upwork with 100% Job Success across 1,300+ hours, working with SaaS teams, law firms, lenders, and agencies who need it shipped right the first time. WHAT I BUILD FOR CLIENTS → Custom AI Software & Apps Full-stack AI applications built from scratch — frontend (Next.js / React), backend (FastAPI / Python), AI logic (OpenAI, Claude, RAG with pgvector or Pinecone), production deployment (GCP / AWS, Docker, CI/CD, Sentry). Recent build: a bilingual Arabic/English legal management platform with a RAG document drafter and WhatsApp client bot — drafting time cut from hours to minutes. → AI Integration Into Existing Software Connecting AI to the tools your business already runs on — CRMs, databases, internal apps, customer-facing platforms. Recent build: an AI underwriting engine for a real estate lender that replaced manual document review across the entire loan lifecycle. → n8n Workflow Automations Self-running pipelines that connect your CRM, email, WhatsApp, databases, and AI models into one system. Recent build: a multi-agent content pipeline that turns a single Telegram command into a published SEO article in 3–4 minutes — replacing ~15 hrs/week of manual work. → RAG-Powered Chatbots & AI Assistants Custom chatbots with real document grounding, conversation memory, and human handoff. Web, WhatsApp, Slack — wherever your customers are. WHY CLIENTS HIRE ME OVER THE NEXT FREELANCER ✓ Top Rated, 100% Job Success, 1,300+ hours on Upwork in this exact lane ✓ Production deployments — not prototypes. CI/CD, monitoring, Docker, GCP/AWS — the boring infrastructure that keeps systems running at 3 AM ✓ Full-stack — I ship the AI logic and the software it lives inside (FastAPI, Next.js, Python, React) ✓ Member of two Top Rated Upwork agencies with 13,000+ combined hours delivered INDUSTRIES I'VE BUILT FOR Legal Tech · Fintech / Lending · Healthcare · EdTech · Content Operations · SaaS Tools HOW I WORK I scope tightly, ship in milestones, and send Loom walkthroughs of every build so you can follow along without needing a technical translator. I respond inside 4 hours and keep you updated even on days nothing ships. IF YOU'RE EVALUATING ME FOR A PROJECT Send me a short message describing what you want to build or automate, and what "done" looks like. I'll tell you honestly whether I'm the right fit, roughly what it'll cost, and roughly how long it'll take — usually inside a day. If it's a fit, you'll get a clear scope, a fixed timeline, and code you actually own.

My goal is to be satisfied with my job, and this can be achieved only if my customers are happy. Please tell me about your needs and I will do my best to help you. My principle at work: If I do work, I should do it nicely. And further, if you wonder about my previous work and experience, here's my portfolio link: aymanhawi.com 👋 Hello! I’m a JavaScript Developer with a passion for creative thinking and innovative solutions. With experience in fullstack web development and cross-platform app development. I always try to make my code as good, clean, readable and maintainable as I can. I have experience in: ✔️ JavaScript (ES6+) ✔️ TypeScript ✔️ HTML5, CSS3 ✔️ React.js ✔️ Angular ✔️ Vue.js ✔️ Node.js ✔️ Express.js ✔️ Electron js ✔️ Vite.js ✔️ Next.js ✔️ RESTful APIs ✔️ GraphQL ✔️ jQuery ✔️ Bootstrap, Tailwind CSS ✔️ Webpack, Babel ✔️ Git, GitHub ✔️ NPM, Yarn ✔️ Unit testing: Jest, Mocha, Chai ✔️ End-to-end testing: Cypress, Selenium ✔️ Redux, Context API ✔️ Responsive Design ✔️ Web Accessibility (WCAG) ✔️ Cross-Browser Compatibility ✔️ Agile/Scrum Methodologies ✔️ CI/CD with Jenkins, Travis CI ✔️ Docker, Kubernetes ✔️ MongoDB, Firebase ✔️ AWS, Azure ✔️ WebSockets ✔️ OAuth, JWT ✔️ Progressive Web Apps (PWAs) ✔️ Figma ✔️ Unity