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Top-Rated | Full-Stack Developer | React.js | Node.js | PHP | React Native | AI Specialist | WordPress If your business is losing time to repetitive workflows, your support team is overwhelmed, or your product needs real AI intelligence, not a chatbot wrapper, I build the systems that fix it. I am a Senior Full-Stack Developer with 8+ years of experience designing and shipping production-grade web applications, SaaS platforms, and AI-powered systems. My work spans the complete product lifecycle from architecture and backend engineering to pixel-perfect frontend, mobile apps, and cloud infrastructure 🏆 RESULTS I'VE DELIVERED FOR CLIENTS: → −60% support ticket volume · GPT-4o agent, CRM-integrated, multilingual, 24/7 for a SaaS company with 10,000+ users. → +40% average order value · AI recommendation engine trained on cart behaviour and purchase history. → 10,000+ users at launch · multi-tenant SaaS with isolated environments and Stripe subscription. billing. → 99.9% uptime · AWS auto-scaling, Redis, Docker, CI/CD, zero-downtime deployments. 👨‍💻 WHAT I BUILD: ✅ Senior Full-Stack Web Development (React · Next.js · Node.js · TypeScript) ✅ AI Agents, LLM Integrations & Intelligent Automation Systems ✅ SaaS Platform Architecture (multi-tenant · Stripe billing ) ✅ Mobile App Development (React Native · Flutter · offline-first · real-time sync) ✅ CRM & Admin Panel Development (custom dashboards · analytics · reporting) ✅ E-Commerce Platforms (AI-driven recommendations) ✅ MVP Development & Legacy System Modernisation ⚛️ FULL-STACK TECHNICAL EXPERTISE: FRONTEND · React.js, Next.js 14 (App Router), Vue.js, Nuxt.js, TypeScript · Tailwind CSS, Shadcn/UI, Radix UI, Framer Motion, Figma-to-code · Real-time streaming UIs, LLM chat interfaces, PWAs, offline-first apps BACKEND · Node.js, NestJS, Express.js, Python, FastAPI, Django, Laravel · REST APIs, GraphQL, WebSockets, microservices architecture · Authentication: OAuth2, JWT, multi-tenancy, RBAC DATABASES & CACHING · PostgreSQL, MySQL, MongoDB, Firebase, Supabase · Query optimisation, indexing strategies, database scaling CLOUD, DEVOPS & INFRASTRUCTURE · AWS (EC2, S3, Lambda, RDS, CloudFront), GCP, Azure · Docker, GitHub Actions, CI/CD pipelines, Vercel PAYMENTS & INTEGRATIONS · Stripe (subscriptions, webhooks), Razorpay, PayPal · HubSpot, Salesforce, Zoho CRM · Twilio, WhatsApp Business API, SendGrid · Google Maps API, Cloudinary, Firebase Push Notifications MOBILE · React Native & Flutter cross-platform, production-shipped apps · Real-time sync, push notifications, GPS tracking, offline-first architecture 🤖 AI & AUTOMATION EXPERTISE: I build real AI systems that reason, retrieve context, and take action, not basic API wrappers bolted onto existing products. AI FRAMEWORKS & ORCHESTRATION · LangGraph, LangChain, CrewAI, AutoGen, MCP (Model Context Protocol) · OpenAI GPT-4o, Claude (Anthropic), Gemini Pro, LLaMA 3, DeepSeek RAG, VECTOR SEARCH & MEMORY · ChromaDB, FAISS, OpenAI Embeddings · Retrieval-Augmented Generation (RAG), semantic search. VOICE & MULTIMODAL AI · Vapi, Retell AI, ElevenLabs TTS, Twilio Voice autonomous inbound/outbound calling agents · GPT-4o Vision, Gemini Multimodal, Document AI, Speech AI AUTOMATION & WORKFLOW TOOLS · n8n, Make (Integromat), Zapier · LangSmith, eval pipelines, prompt optimisation 🌐 INDUSTRIES I SERVE: SaaS & Enterprise Software · E-Commerce & Marketplaces · Fintech & Payments Healthcare & Telemedicine · EdTech & LMS · Real Estate Tech · Travel & Hospitality 🏆 WHY CLIENTS CHOOSE ME: ✔ Discovery first: I understand your business before writing a single line of code. ✔ Senior-level thinking: I design for scale, security, and maintainability from day one. ✔ Full ownership: backend, frontend, AI, cloud. One engineer, zero coordination overhead. ✔ Milestone-based delivery: live demos at every stage. ⚡ NDA-ready · Full IP transfer · 50 hrs/week availability KEYWORDS Full-Stack Developer | Front-End Developer | Back-End Developer | React.js Developer | Vue.js Developer | Next.js Developer | Node.js Developer | TypeScript Developer | JavaScript Expert | Tailwind CSS | Bootstrap | API Integration | REST API | GraphQL Developer | Web App Development | Responsive Design | Figma to HTML | WordPress Developer | Elementor Expert | WooCommerce | Shopify Developer | Custom Shopify App | Shopify Liquid | ACF | Headless WordPress | Payment Gateway Integration | Booking Website | ChatGPT Integration | OpenAI API | AI Chatbot Developer | WhatsApp Bot | AI Dashboard | LangChain | Claude Integration | AI Automation | Zapier Automation | Workflow Automation | React Native Developer | Flutter App Developer | Ionic App | Hybrid App Development | Mobile App with API | Cross-Platform App | Android/iOS Developer | Firebase Integration | Laravel Developer | FastAPI Developer | Supabase | MySQL | PostgreSQL | MongoDB Developer | Docker | CI/CD Pipeline | GitHub Actions | AWS Deployment | GCP Deployment| Cursor| Lovable| Claude

Completed 100+ Jobs Successfully | Full-Stack Developer | AI Solutions Architect | SaaS & Mobile App Expert Hi, I’m Ajay a Full-Stack Developer and AI Solutions Architect with 10+ years of experience building scalable web platforms, mobile applications, SaaS products, and AI-powered business solutions for startups, agencies, and enterprises worldwide. I specialize in transforming ideas into modern, high-performance digital products using the latest technologies in AI, automation, cloud infrastructure, and full-stack development. What I Bring to Your Project AI & Automation Solutions * Custom AI chatbot development using OpenAI / ChatGPT APIs * AI-powered CRM, SaaS, and workflow automation systems * Retrieval-Augmented Generation (RAG) & AI knowledge base integration * AI agents, virtual assistants, and intelligent customer support systems * Prompt engineering and AI-driven business automation Full-Stack Web Development * Modern frontend development with React, Vue.js, TypeScript, JavaScript, HTML5, SCSS, and Tailwind CSS * Backend architecture using Laravel, Node.js, REST APIs, and scalable cloud infrastructure * High-performance SaaS platforms, admin dashboards, and enterprise applications * API integrations, real-time systems, and WebSocket applications Mobile App Development * Cross-platform app development with React Native and Ionic * Native iOS & Android development using Swift and Kotlin * App Store & Play Store deployment and optimization * Real-time chat, notifications, analytics, and payment integrations Cloud, Database & DevOps * AWS cloud infrastructure and scalable deployment architecture * MySQL, MongoDB, Firebase, Redis, and real-time database systems * Secure authentication, encryption, and performance optimization * CI/CD pipelines, Git workflows, and server management E-Commerce & Business Platforms * WooCommerce and WordPress custom development * CRM systems, booking platforms, marketplace applications * Subscription systems and payment gateway integrations * Stripe, PayPal, Apple Pay, Razorpay, and custom billing solutions Technologies & Tools Frontend: React, Vue.js, JavaScript, TypeScript, HTML5, CSS3, SCSS, Tailwind Backend: Laravel, PHP, Node.js, REST APIs Mobile: React Native, Ionic, Kotlin, Swift AI: OpenAI, ChatGPT API, AI Agents, RAG, Vector Embeddings Database: MySQL, MongoDB, Firebase, Redis Cloud & DevOps: AWS, VPS, CI/CD, GitHub, Bitbucket Design & Collaboration: Figma, Jira, Trello, Slack, Asana Industries & Solutions Delivered * CRM & ERP Platforms * AI SaaS Products * Marketplace & Lead Generation Platforms * Real Estate & Booking Applications * Healthcare & Business Automation Systems * Social Networking & Event Apps * AI Chatbots & Customer Support Platforms * FinTech & Payment Solutions Why Clients Work With Me * Strong focus on scalability, performance, and clean architecture * Business-oriented development approach * Fast communication and reliable delivery * Long-term technical partnership mindset * Experience leading complete product development from idea to launch I’m passionate about building intelligent digital products that combine modern UI/UX, scalable engineering, and AI-powered automation. Let’s discuss your project and build something exceptional. Your AI based Full Stack Developer Ajay

I help startups build AI SaaS platforms, ChatGPT integrations, and automation systems that reduce manual work and scale fast. From idea → MVP → scalable system, I design and deliver platforms that increase efficiency, automate workflows, and handle real users at scale. 💡 What I Do (Business Outcomes) Build AI-driven SaaS platforms (multi-tenant, scalable, secure) Develop RAG systems & AI copilots with high accuracy (low hallucination) Automate operations to reduce manual work by 40–70% Launch MVPs fast and scale them to thousands of users ⚡ Why Clients Work With Me ✔ I focus on real business impact, not just code ✔ I handle end-to-end delivery (AI + Backend + Frontend + DevOps) ✔ I design systems that scale from day one ✔ Clear communication + fast iteration cycles 🤖 AI & Automation Expertise RAG pipelines (LangChain, LlamaIndex, vector DBs) AI agents & workflow automation (LangGraph, CrewAI) LLM integrations (OpenAI, Claude, Gemini, LLaMA) Chatbots, internal tools, and AI copilots Voice & SMS AI (Twilio, speech systems) 🏗 SaaS & Full-Stack Architecture Multi-tenant SaaS, RBAC, billing systems APIs (REST, GraphQL), microservices React / Next.js / Vue + scalable UI systems Flutter & React Native apps ☁️ Cloud & Scaling AWS, GCP, Docker, Kubernetes CI/CD, monitoring, performance optimization Secure, reliable, production-ready systems 📊 Proven Experience Built systems across: FinTech • EdTech • E-commerce • Logistics • SaaS Delivered: AI automation platforms CRM/ERP systems Real-time dashboards Scalable SaaS products 🎯 Let’s Work Together If you need someone who can think like a technical partner and build like an engineer, I can help you ship faster and scale smarter. 👉 Send an invite with your idea, I’ll suggest the best approach. KEYWORDS Laravel Developer, React.js Developer, Full Stack Developer, AI Developer, ChatGPT API Integration, AI Chatbot Developer, SaaS Developer, CRM Developer, ERP Developer, Node.js Developer, Next.js Developer, Vue.js Developer, Angular Developer, Tailwind CSS Expert, MERN Stack Developer, PHP Developer, Python Developer, Frontend Developer, Backend Developer, DevOps Engineer, RESTful API Developer, GraphQL Developer, AWS Developer, GCP Developer, Azure Developer, Docker Specialist, CI/CD Pipelines, E-Commerce Developer, Multi-Tenant SaaS, FinTech Developer, Healthcare Apps, E-Learning Developer, Logistics Management, MVP Development, SEO Optimization, UI/UX Developer, Real-Time App Developer, PWA Developer, LLM Training, NLP Specialist.

✅ $200K+ earned | ✅ 7,600+ Upwork hours | ✅ 100% Job Success ✅ 11+ Years of proven experience. ✅ Available to work in the client's time zone. ✅ Cross-platform expert: iOS, Android, Flutter, React Native ✅ Known for End-to-End Solution Hello, I am Kanchan, a Top Rated Plus 💎 Full Stack Developer with 9+ years building scalable web and mobile applications for startups, agencies, and enterprises. With $200K+ earned and 7,600+ hours on Upwork, I he helped 100+ clients ship products that work reliably, scale smoothly, and actually solve business problems. Whether you're racing toward an MVP launch, scaling an existing platform, or need someone to take full ownership of your technical roadmap, I don't just write code, I deliver solutions you can build on. 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 🎯 Mobile Applications (Native & Cross-Platform) • iOS (Swift, Objective-C) and Android (Kotlin, Java) native apps • Cross-platform solutions: Flutter, React Native • Offline-first architecture, real-time sync, background tasks • WebRTC video/audio, push notifications, in-app payments • App Store & Google Play deployment with CI/CD automation 🎯 Web Applications (Full Stack) • Modern frontends: React, Next.js, Vue, Angular • High-performance backends: Node.js, Python (FastAPI/Django), Go, PHP (Laravel) • Real-time features: WebSockets, Socket, live collaboration • REST APIs, GraphQL, microservices architecture • Progressive Web Apps (PWA) and Server-Side Rendering (SSR) 🎯 AI/ML Integration & Automation • LLM integration: OpenAI GPT-4, Claude, LLaMA • Vector databases: Pinecone, Weaviate, pgvector for semantic search • RAG systems, chatbots, AI assistants, document analysis • Custom ML pipelines, model fine-tuning, data processing • Automation workflows with AI agents 🎯 Cloud & Infrastructure • AWS, GCP, Azure deployments with auto-scaling • Docker, Kubernetes, serverless (Lambda, Cloud Functions) • CI/CD pipelines: GitHub Actions, GitLab CI, fastlane • Database optimization: PostgreSQL, MongoDB, Redis, MySQL • Infrastructure as Code (Terraform), monitoring, logging 🎯 Enterprise Solutions • SaaS platforms, CRM, ERP, custom dashboards • Multi-tenant architecture with role-based access • Payment gateway integration: Stripe, PayPal, Razorpay • Third-party API integrations, OAuth2, JWT authentication If you have a vision and need someone who can bring it to life: reliably, professionally, and without unnecessary complexity, send me a message. Let's discuss your project in detail and create a clear roadmap together. I would be glad to assist you in your vision and goals. Looking forward to working with you! Kanchan 𝗦𝗘𝗔𝗥𝗖𝗛 𝗞𝗘𝗬𝗪𝗢𝗥𝗗𝗦 : Mobile App Development | iOS Development | Android Development | Flutter Developer | React Native Developer | Swift Developer | Kotlin Developer | Cross-Platform Mobile Apps | Native App Development | Mobile App UI/UX | App Store Optimization | Google Play Deployment Full Stack Developer | Web Application Development | React Developer | Next.js Developer | Vue Developer | Angular Developer | Node.js Developer | Python Developer | FastAPI Developer | Django Developer | PHP Developer | Laravel Developer | MERN Stack Developer | MEAN Stack Developer AI Integration | Machine Learning | OpenAI GPT-4 | Claude API | LangChain | Vector Database | RAG System | AI Chatbot Development | LLM Integration | Semantic Search | AI Automation | Document Analysis Backend Development | REST API Development | GraphQL API | Microservices Architecture | WebSocket Development | Real-Time Applications | Database Design | PostgreSQL | MongoDB | MySQL | Redis | Firebase Cloud Development | AWS Developer | Google Cloud Platform | Azure Developer | DevOps Engineer | Docker | Kubernetes | CI/CD Pipeline | Serverless Architecture | Cloud Migration | Infrastructure as Code | Terraform SaaS Development | Multi-Tenant Architecture | Enterprise Software | CRM Development | ERP Development | Dashboard Development | Admin Panel | Payment Gateway Integration | Stripe Integration | PayPal Integration E-Commerce Development | Shopify Development | WooCommerce | Headless Commerce | Shopping Cart | Inventory Management | Order Management | Product Catalog | Checkout Optimization FinTech Development | Healthcare App Development | EdTech Platform | Real Estate App | On-Demand App Development | Booking System | Delivery App | Video Streaming | Social Media App Security & Compliance | HIPAA Compliance | GDPR Compliance | OAuth2 | JWT Authentication | Two-Factor Authentication | Data Encryption | Penetration Testing | Security Audit | OWASP Testing & QA | Unit Testing | Integration Testing | E2E Testing | Test Automation | Performance Testing | Load Testing | Security Testing | Code Review | Quality Assurance UI/UX Implementation | Responsive Design | Mobile-First Design | Progressive Web Apps | Accessibility | WCAG Compliance | Cross-Browser Compatibility | Performance Optimization | SEO

✅TOP RATED Freelancer on UpWork, Development is in my passion AI and prompt engineering, Web, Mobile Development and Designing is my passion and I am enjoying to do this. As a software engineer I am applying the principles of software engineering to the design, development, maintenance, testing, and evaluation. I am expert in my work. I have 10+ years experiences. * Available for Full and Part time job * All time available for response and requirements fulfill * Update of work daily basis AI Tools :- * Cursor * Cloude * Open clover * GitHub Copilot * Lovable * OpenClew * Codex Web Technologies:- * React Native * Core PHP * Cake PHP * Laravel * Codeigniter * Woocommerce * Wordpress and mobile API * Vue js * React js * Angular js * Node js * Ajax * JQeury * Javascript * Ionic Server Hosting:- * Firebase * Google Cloud * AWS Servers * Digital Ocean * Cpanel Payment Integration * Stripe * Paystack * Orange Payment * PayU money * Paytm * Google pay * Source Payment * Apple Pay * Plaid * Tabapay * Routable * Stax Pay Designing:- * HTML and HTML5 * CSS and CSS3 * Bootstrap * Adobe Photoshop * Wix Additional Platforms:- * Github * GitLab * Bitbucket * Trello * Coinbase * Etherum * Paxos Databasees:- * Mongodb * MySql * MS Sql Server * Sqllite * Google Cloud Sql 3 party Login and data accessing:- * Google * Facebook * Twitter * Linkedin * Tinder * Instagram These are my key skills and experiences Hope you will consider me for work Thank you

🚀 AI & Full-Stack Web Development — Chatbots, Scalable Apps, and Custom Solutions I’m a Full-Stack Developer with 6+ years of experience delivering scalable, secure, and user-friendly applications — from AI-powered chatbots to enterprise-grade web platforms. I combine Generative AI expertise with modern frameworks like Laravel, Django, and React.js to create solutions that help businesses grow faster. ⸻ 🔹 Core Expertise • AI & Chatbots: OpenAI API, Generative AI, LangChain, NLP Assistants • Backend Development: PHP, Laravel, Django, Node.js (API-first architecture) • Frontend Development: React.js, Vue.js, Bootstrap, Tailwind CSS • Databases & APIs: MySQL, MongoDB, REST APIs, GraphQL • DevOps & Deployment: AWS, DigitalOcean, Vercel, Docker ⸻ 🔹 Why Work With Me ✅ Translate business ideas into high-performing technical solutions ✅ Write clean, maintainable, and scalable code following SOLID principles ✅ Proven experience with startups, SMEs, and enterprise clients ✅ On-time delivery with transparent and proactive communication ⸻ 🔹 Featured Projects • AI Customer Support Chatbot integrated with CRM • Multi-Tenant SaaS Platform with subscription billing (Stripe) • E-Learning Platform with real-time video and AI content generation • Automation Tools with web scraping and AI-driven data insights ⸻ 💬 Let’s build your next AI-powered application or scalable web platform together. Send me a message — I’ll respond quickly and help bring your idea to life.