You will get a Smart AI Chatbot with RAG & LLMs
Top Rated
Top Rated
Project details
Build a custom AI chatbot tailored to your business using Python and the latest LLM technologies. Whether you need customer support, lead generation, appointment booking, or a knowledge base assistant, I'll create a secure, scalable, and production-ready solution.
I also develop RAG (Retrieval-Augmented Generation) chatbots that can answer questions using your PDFs, documents, websites, FAQs, or databases, delivering accurate and context-aware responses based on your business data.
**Services include:**
• Custom AI Chatbot Development
• RAG Chatbot (Chat with Documents)
• Customer Support & FAQ Bots
• Lead Generation & Booking Assistants
• API & CRM Integrations
• Multi-language Support
• Secure Authentication
• Cloud Deployment
**Tech Stack:** Python, FastAPI, OpenAI, Claude, Gemini, DeepSeek, LangChain, LlamaIndex, ChromaDB, Pinecone, FAISS, PostgreSQL, MongoDB, Redis, Docker, and REST APIs.
Every chatbot is built with clean code, scalable architecture, and a focus on performance, security, and a great user experience.
I also develop RAG (Retrieval-Augmented Generation) chatbots that can answer questions using your PDFs, documents, websites, FAQs, or databases, delivering accurate and context-aware responses based on your business data.
**Services include:**
• Custom AI Chatbot Development
• RAG Chatbot (Chat with Documents)
• Customer Support & FAQ Bots
• Lead Generation & Booking Assistants
• API & CRM Integrations
• Multi-language Support
• Secure Authentication
• Cloud Deployment
**Tech Stack:** Python, FastAPI, OpenAI, Claude, Gemini, DeepSeek, LangChain, LlamaIndex, ChromaDB, Pinecone, FAISS, PostgreSQL, MongoDB, Redis, Docker, and REST APIs.
Every chatbot is built with clean code, scalable architecture, and a focus on performance, security, and a great user experience.
Chatbot Type
Customer Service Chatbot, Finance & Banking ChatbotDevelopment Technology
ChatGPT, PythonMessaging Platform
Discord, Email, Facebook Messenger, Google Assistant, Microsoft, Slack, SMS, Telegram, Telephone, Twilio, Website, WhatsAppWhat's included
| Service Tiers |
Starter
$800
|
Standard
$1,500
|
Advanced
$2,500
|
|---|---|---|---|
| Delivery Time | 15 days | 30 days | 45 days |
Number of Revisions | 3 | 3 | 5 |
Number of Messaging Platforms | 1 | 2 | 5 |
Action Plan | |||
API Integration | |||
Bug Fixes | |||
Chatbot Flow Design | |||
Conversation Script |
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About Rajinder
Python | Chatbot | SaaS | AI | Nodejs | Nextjs | React
100%
Job Success
Bassi Pathana, India - 8:51 pm local time
With expertise in Node.js, React, and Python, I turn complex ideas into production-ready, reliable web systems.
Full Stack Developer specializing in Next.js, Node.js, and MongoDB — building SaaS platforms, booking systems, and service marketplaces that are production-ready and built to scale.
Whether you need a Next.js developer for a fast, SEO-optimized web app, a Node.js developer for a robust backend API, or a full stack developer to own the entire product — I deliver complete, clean, and maintainable code from database to deployment.
Top Rated Plus · 7 Consecutive Years · 300+ Projects · 16,000+ Hours · 98% Job Success Score.
━━━ WHAT I BUILD ━━━
✦ Service Marketplaces & Booking Platforms
As a Next.js developer with deep marketplace experience, I build end-to-end booking systems — customer flows, provider dashboards, scheduling, real-time notifications, and admin panels. I've launched a live home services marketplace from scratch connecting customers with technicians across booking, payments, and tracking.
✦ SaaS Web Applications
Next.js front-end, Node.js back-end, MongoDB database — multi-tenant SaaS with auth, Stripe subscriptions, user roles, onboarding, billing dashboards, and analytics. Built to scale from day one.
✦ AI Integration & Automation
I integrate AI into full stack applications — OpenAI API, Claude API, LangChain — building AI chatbots, smart search, document processing, auto-classification, and LLM-powered features into Next.js and Node.js platforms.
✦ Backend & REST API Development
Node.js and Express.js REST APIs and GraphQL — secure JWT auth, Stripe webhooks, background jobs, third-party integrations, and scalable API architecture. Every API I build is documented and tested.
✦ Database Design — MongoDB & SQL
MongoDB Atlas, MySQL, PostgreSQL, Firebase, Supabase — schema design, query optimization, indexing, and aggregation pipelines that keep your Node.js applications fast under load.
✦ Frontend Development (Figma → Next.js)
Pixel-perfect Figma to Next.js conversion — responsive, accessible, and performance-optimized. Tailwind CSS, Shadcn UI, and custom design systems built with TypeScript.
✦ Mobile Development (React Native)
Cross-platform iOS and Android apps using React Native and Expo — sharing business logic with your Node.js backend. Booking apps, service provider apps, customer apps.
━━━ WHY CLIENTS CHOOSE ME ━━━
🏆 Top Rated Plus — 7+ Consecutive Years
📦 300+ Projects Delivered as a Full Stack Developer
⏱ 16,000+ Hours of Logged Node.js, Next.js & MongoDB Development
🔥 Full ownership — frontend, backend, database, deployment
⚡ Fast delivery without cutting corners
💬 Clear communication, honest timelines, zero surprises
━━━ TECH STACK ━━━
Frontend: Next.js, React, TypeScript, Tailwind CSS, Shadcn UI
Backend: Node.js, Express.js, REST API, GraphQL, WebSockets
Database: MongoDB, MySQL, PostgreSQL, Firebase, Supabase
Payments: Stripe, Razorpay
Auth: JWT, OAuth, NextAuth.js
Cloud: Vercel, AWS, Railway, Docker
Mobile: React Native, Expo
AI: OpenAI API, Claude API, LangChain
Steps for completing your project
After purchasing the project, send requirements so Rajinder can start the project.
Delivery time starts when Rajinder receives requirements from you.
Rajinder works on your project following the steps below.
Revisions may occur after the delivery date.
Project Requirements and Chatbot Planning
I will review your goals, target users, chatbot purpose, documents, required integrations, preferred platform, and design expectations. I will then define the chatbot workflow, features, technology stack, and delivery plan.
Chatbot UI and Conversation Flow Design
I will design the chatbot interface and conversation flow based on your business needs. This includes welcome messages, questions, responses, fallback handling, lead collection, booking steps, and human support handoff when required.