You will get help to Build Generative AI Developer: RAG Pipelines, Llama 3 & Vector DB

Name: You will get help to Build Generative AI Developer: RAG Pipelines, Llama 3 & Vector DB
Availability: InStock

Ranijth N.

Ranijth N.

Project details

Senior AI Engineer | RAG, Local LLMs (Llama 3/Mistral) & Vector Search Expert

Looking for a private, secure, and cost-effective AI chatbot? I build custom RAG (Retrieval-Augmented Generation) systems that allow you to chat with your own data (PDFs, Docs, Databases) without sending sensitive info to the cloud.

🚀 WHAT I DELIVER:
Custom RAG Pipelines: High-accuracy document retrieval using LangChain or LlamaIndex.
Local LLM Deployment: Run powerful models like Llama 3, Mistral, or Phi-3 locally (Ollama/LM Studio) to save on API costs.
Vector Database Integration: Expert setup with Pinecone, ChromaDB, or FAISS.
Seamless Integration: Clean Python-based APIs (FastAPI/Flask) to connect your AI to any website or tool.

🛠️ TECH STACK:
Languages: Python (Expert)
Frameworks: LangChain, LlamaIndex, Haystack.
Models: Llama 3, Mistral, GPT-4, Claude.
Vector DBs: ChromaDB, Pinecone, Weaviate, Milvus.
UI: React integration.

💎 WHY CHOOSE ME?
Privacy-First: Secure setups for internal company data.
Scalable Code: Clean, modular Python scripts.
Fast Turnaround: From POC to production-ready bot quickly.

Ready to unlock your data's potential? Click "Message" to discuss your AI vision!

AI Development Type

Deep Learning, Knowledge Representation, Model Tuning, Recommendation System, Software Maintenance

AI Tools

deeplearn.js, Deeplearning4j, MATLAB, NVIDIA AI Platform, OpenCV, PyTorch, Sonnet, TensorFlow

AI Development Language

Python

What's included

Service Tiers	Starter $200	Standard $600	Advanced $1,500
Delivery Time	3 days	9 days	14 days
AI Model Integration
Detailed Code Comments
Knowledge Graph	-	-	-
Model Documentation
Ontology	-	-	-
Source Code
Taxonomy	-	-	-

Frequently asked questions

About Ranijth

Full Stack Developer | Blockchain Expect | AI | Mern | Web3 | Devops

Chennai, India - 5:19 pm local time

I build complete, production-ready web applications — from Figma designs to deployed systems. Whether it's a React/Next.js frontend, a Node.js backend, an AI-powered chatbot, or a blockchain platform, I've shipped it in real production environments with real users.

Two of my live products:
haxswap com (crypto P2P exchange) and b4bwallet com (Web3 wallet) — both built from scratch and running in production today.

If you need clean code, fast delivery, and someone who takes ownership — that's exactly how I work.

WHAT I BUILD
Full Stack Web Apps:
React.js, Next.js, Node.js, Express, MongoDB, PostgreSQL, REST APIs, WebSockets, authentication systems, SaaS platforms

Figma to React/Next.js:
Pixel-perfect UI conversion from any Figma design — responsive, component-based, production-ready

Admin Dashboards & SaaS Platforms:
Data tables, analytics dashboards, role-based access, real-time updates, scalable architecture

AI Integration & Automation:
OpenAI API, Claude API, LangChain, RAG systems, AI chatbots, document Q&A platforms, workflow automation

Blockchain & Web3:
Smart contracts (Solidity), CEX/DEX/P2P exchanges, DeFi platforms, wallet integration, ERC20 tokens, DApps, RWA, Assets Tokenization

DevOps & Deployment:
Docker, AWS, Ubuntu VPS, Nginx, PM2, CI/CD pipelines, SSL setup, Redis caching

REAL PRODUCTION EXPERIENCE
Built and deployed haxswap — a live crypto exchange with P2P trading, real-time order processing, USDT/TRC-20 support, and wallet integration.

Built b4bwallet — a production Web3 wallet with multi-chain support and secure transaction handling.

Built a full AI RAG chatbot platform — PDF/DOCX/CSV uploads, GPT-4 grounded answers, vector search using pgvector, deployed with Docker and FastAPI.

Worked on a Dubai-based crypto exchange backend — P2P trading engine, fund flow architecture, real-time transaction processing, financial-grade security.

This is production experience, not tutorial projects.

TECH STACK
Frontend: React.js, Next.js, TypeScript, Tailwind CSS, Redux
Backend: Node.js, Express.js, Python, FastAPI
Database: MongoDB, PostgreSQL, Redis
AI: OpenAI API, Claude API, LangChain, pgvector, RAG
Blockchain: Solidity, Ethers.js, Web3.js, Hardhat, EVM
DevOps: Docker, AWS, Nginx, PM2, CI/CD, Ubuntu VPS
Payments: Stripe, PayPal, Crypto payments, Webhooks

If you're building something that needs to work at scale — not just look good in a demo — let's talk.

Skills:
React.js, Next.js, TypeScript, MongoDB, Node.js, REST API Development, OpenAI API, Full Stack Development, Figma to HTML/CSS, Admin Dashboard, Docker, PostgreSQL, Express.js

Full Stack
React.js
Next.js
Node.js
TypeScript
JavaScript
Express.js
MongoDB
PostgreSQL
REST API Development
Full Stack Development

AI
AI Development
OpenAI API
LangChain
Python

Frontend/UI
Figma to HTML/CSS
Admin Dashboard

Blockchain
Solidity
Web3.js
DeFi
Smart Contract Development

DevOps
Docker
API Integration

Steps for completing your project

After purchasing the project, send requirements so Ranijth can start the project.

Delivery time starts when Ranijth receives requirements from you.

Ranijth works on your project following the steps below.

Revisions may occur after the delivery date.

Requirement Analysis & Clarification

Deep dive into your brief to ensure every detail is aligned before I start.

Project Outline & Draft

Create the initial framework or "v1" of the deliverables

Review the work, release payment, and leave feedback to Ranijth.

Select service tier

Starter$200

Standard$600

Advanced$1,500

Simple AI Chatbot

Simple AI chatbot Proof-of-concept (POC) Document Q&A system

Delivery Time 3 days
- AI Model Integration
- Detailed Code Comments
- Model Documentation
- Source Code

3 days delivery — Jul 3, 2026

Revisions may occur after this date.

Upwork Payment Protection

Fund the project upfront. Ranijth gets paid once you are satisfied with the work.