Nikhil Dasar

Hi,I'm

Nikhil Dasar

I Transform Caffeine

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Full-Stack & AI Engineer specializing in Go, Node.js, Next.js, AWS, LangChain, LangGraph, and RAG. Passionate about building scalable, high-performance applications with clean architecture and modern AI technologies.

Next JS

React

JavaScript

TypeScript

AWS

Docker

Tailwind

Express

Node JS

MongoDB

Postgres

Prisma

Cloudfare

Vercel

Material UI

Shadcn

Git

GitHub

Postman

Photoshop

Latest Release Android App

Spendly AI

AI-Powered Personal Expense Tracker

Spendly AI is an AI-powered personal expense tracker that helps users record daily expenses, manage monthly budgets, and get personalized insights into their spending patterns.

✓Built Gemini 2.5 Flash-powered OCR to extract transaction details from receipts and payment screenshots for automated expense tracking.

✓Developed a LangChain RAG Agent with pgvector HNSW, embeddings, hybrid vector + full-text search, and contextual retrieval for personalized financial insights and knowledge retrieval.

✓Implemented an interactive SSE chatbot with agentic tool calling for financial insights, transaction updates, budget management, and personalized spending analysis.

TECH STACK