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Hitesh Agrawal

Full Stack Blockchain Engineer

Building the future of blockchain.

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Full Stack Blockchain Engineer

Hitesh Agrawal

Building secure DeFi protocols, NFT marketplaces, and high-performance blockchain infrastructure. Published AI researcher.

Dhanbad, Jharkhand, India•IST (UTC+5:30)
Get In TouchView Resume

$1M+

Saved in audits

3+

Years experience

1

Published paper

About Me

Hi, I'm Hitesh 👋

Dhanbad, Jharkhand, India•IST (UTC+5:30)

Full Stack Blockchain Engineer at VaporFi Labs since September 2022. I specialize in building secure DeFi protocols, NFT marketplaces, and high-performance blockchain infrastructure.

I've audited smart contracts preventing $1M+ in potential losses, designed Uniswap V3 compatible protocols, and built APIs handling millions of requests daily.

Currently

Full Stack Blockchain Engineer

@ VaporFi Labs

Sep 2022 - Present

Key Achievement

Prevented $1M+ in vulnerabilities through smart contract audits

Languages

Python
TypeScript
JavaScript
Solidity
SQL
C++

Blockchain & Web3

Hardhat
Ethers.js
Web3.js
Solidity
Smart Contracts
DeFi
ERC-20/721/1155

Frameworks

Next.js
React
Node.js
Express
FastAPI
Django

3+

Years Experience

AI/ML

Published Researcher

TensorFlow
PyTorch
CNN
LSTM
Computer Vision
NLP

Experience

Full Stack Blockchain Engineer

Sep 2022 - Present

VaporFi Labs•USA (Remote)

  • •Audited smart contracts, mitigating vulnerabilities and preventing $1M+ in potential losses
  • •Designed and launched a Uniswap V3 compatible liquidity locker protocol with seamless user migration
  • •Built a high-throughput API gateway handling 1M+ requests daily across multiple blockchain networks
  • •Engineered a real-time blockchain indexer for DeFi protocol analytics
  • •Developed NFT marketplace with ERC-721 support and IPFS integration
Solidity
Next.js
Node.js
TypeScript
Docker
PostgreSQL
AWS

Research Assistant

Aug 2021 - Aug 2022

Birsa Institute of Technology•Sindri, India

  • •Published research on CNN-LSTM image captioning models in International Journal of Computer Applications
  • •Developed deep learning models achieving 95%+ accuracy in image classification tasks
  • •Implemented data pipelines for large-scale image datasets using TensorFlow
Python
TensorFlow
PyTorch
Computer Vision
Deep Learning

Full Stack Blockchain Engineer Intern

May 2022 - Aug 2022

VaporFi Labs•USA (Remote)

  • •Developed blockchain data indexing pipelines for real-time analytics
  • •Built REST APIs for querying blockchain data with sub-second response times
  • •Contributed to smart contract testing and deployment automation
Solidity
Node.js
PostgreSQL
Ethers.js

Featured Projects

Open source libraries, blockchain protocols, and production systems I've built.

TypeScript

nuqs-presets

Production-ready React hooks for pagination, filtering, sorting & searching with URL state. Built on top of nuqs with full TypeScript support.

TypeScript
React
Next.js
URL State Management
CodeNPM
TypeScript

git-repo-loader

TypeScript library to fetch and stream GitHub repository content while efficiently handling rate limits. Perfect for tools processing large repos.

TypeScript
Node.js
GitHub API
Streaming
CodeNPM
TypeScript

safe-calls

Simple rate limit & retry manager built on top of p-limit, p-retry and p-throttle. Ideal for managing API calls in production.

TypeScript
Node.js
Rate Limiting
Retry Logic
CodeNPM
Solidity

Solidity Anti Flash Loan

Proof-of-concept smart contract explaining how to structure contracts to be immune to flash loan cyber attacks. Educational security resource.

Solidity
Hardhat
Smart Contract Security
DeFi
Code
JavaScript

GitHub Quick Clone

Lightweight Chrome extension that adds a "Quick Clone" button to any GitHub repository, copying the git clone command in one click.

JavaScript
Chrome Extension API
GitHub
Code
Solidity
VaporFi Labs

Uniswap V3 Liquidity Locker

A DeFi protocol for locking Uniswap V3 liquidity positions with time-based unlocking and governance features. Handles millions in TVL.

Solidity
Hardhat
Next.js
Ethers.js
+1
Private Repository
Solidity
VaporFi Labs

NFT Marketplace

Full-stack NFT marketplace with ERC-721 support, IPFS integration, and real-time bidding. Handling 65k+ NFTs.

Solidity
React
IPFS
Ethers.js
+1
Private Repository
Node.js
VaporFi Labs

Blockchain Data Indexer

Real-time blockchain indexer processing millions of events daily across multiple networks. Powers analytics dashboards with fault-tolerant updates.

Node.js
PostgreSQL
Redis
Docker
+1
Private Repository
Node.js
VaporFi Labs

High-Throughput API Gateway

API gateway handling 1M+ daily requests with rate limiting, caching, and load balancing across blockchain nodes.

Node.js
Express
Redis
Docker
+1
Private Repository
Python
VaporFi Labs

CNN-LSTM Image Captioning

Deep learning model for automatic image caption generation. Published research on information bottleneck analysis in IJCA.

Python
TensorFlow
CNN
LSTM
+1
Private Repository

Publications

When Better Eyes Lead to Blindness: A Diagnostic Study of the Information Bottleneck in CNN-LSTM Image Captioning Models

International Journal of Computer Applications 187.31, pp. 1–9

Published: August 2025

This paper investigates the information bottleneck phenomenon in CNN-LSTM architectures for image captioning, revealing counterintuitive findings about how improved visual encoders can lead to degraded caption quality.

Read PaperDOI

Get In Touch

I'm always open to discussing blockchain development, smart contract audits, or AI research collaborations. Feel free to reach out!

Email

hiteshagarwal172@gmail.com

Location

Dhanbad, Jharkhand, India

GitHub

@ihiteshagrawal

LinkedIn

@ihiteshagrawal