SJ
Portfolio
Available for blockchain consulting

I build production blockchain systems that handle real money and real users .

Over 10 years of shipping smart contracts, DeFi protocols, and AI-powered platforms — from architecture to mainnet.

30+ Projects Delivered
20+ Hackathons Won & Judged
2,000+ Developers Educated

Who I Am

About Me

Blockchain and AI development workspace

I started writing code in 2015. Within three years, I was deep in Solidity, building smart contracts for real projects handling real funds. That hands-on experience — deploying contracts that manage real users, real stakes — shaped everything about how I approach blockchain engineering today.

Through Code Minto, the company I founded, I've worked with 30+ clients to architect and ship production blockchain systems — DeFi protocols, tokenization platforms, staking contracts, NFT marketplaces, and multi-chain integrations. I was part of the core team at Velvet Capital building DeFi asset management infrastructure, and at Private AI I built multiple privacy-first AI products from the ground up, including encrypted backend systems and real-time sentiment analysis engines.

Beyond building, I'm deeply invested in the ecosystem. As a Chainlink Advocate, I've hosted 15+ workshops and educated 2,000+ students and developers on blockchain development. I mentor and judge at hackathons, with 20+ hackathon wins of my own — including multiple ETHGlobal prizes. I don't just teach theory; I bring what I've shipped to the stage.

Currently, I specialize in Solidity, smart contract architecture, and blockchain consulting — along with building AI agents using LangChain, CrewAI, and FastAPI.

I build things that work in production — not just things that demo well.

SoliditySmart ContractsDeFiLangChainCrewAIFastAPIReact.jsWeb3Tokenomics

Career Path

Experience

A decade of building across AI, blockchain, and full-stack development.

01
Now 2019 - Present Self-employed
Code Minto

Founder · Blockchain Consulting & Development

  • Founded and run a blockchain consulting firm delivering smart contract development, architecture, and advisory for 30+ clients.
  • Shipped production systems across DeFi, tokenization, staking, NFT marketplaces, and multi-chain integrations.
  • End-to-end technical consulting from product research to mainnet deployment.
02
Now Jan 2026 - Present Part-time
Stealth Startup

Blockchain Consultant · OnRamp/OffRamp Aggregator & Crypto Payment Product

  • Building the full OnRamp/OffRamp Aggregator end-to-end with smart routing across Transak, MoonPay, and Ramp Network.
  • Handling KYC/AML compliance, payment rails, wallet settlement, and smart contract development.
  • End-to-end technical documentation and product research for crypto payment infrastructure.
03
Dec 2024 - Dec 2025 Contract
Gintonic AI

Full Stack Product Developer

  • Engineered LLM-powered AI agents with LangChain, CrewAI, and AutoGen for real-time function calling and API integrations.
  • Deployed smart contracts (ERC-20, ERC-721, ERC-1155) for AI-driven decentralized applications.
04
2024 Full-time

Product Research & AI Backend Developer

  • Architected encrypted backend systems and deployed privacy-first AI agents using LLM frameworks.
  • Built AI-powered sentiment analysis for Twitter with real-time insights.
05
2022 Full-time

Core Team, Blockchain Architect

  • Researched and analyzed DeFi products across tokenomics, liquidity protocols, and yield optimization.
  • Architected multi-chain integrations improving platform interoperability and token utility.
06
2019 - 2021 Freelance
Independent Consultant

Blockchain Development

  • Designed and deployed smart contracts for DeFi platforms, tokenized assets, and NFT marketplaces.
  • Advised enterprises and startups on blockchain architecture, tokenomics, and governance.
07
2021 Full-time
Nonceblox

Blockchain Architect & Cryptography Researcher

  • Researched Decentralized Identifiers (DIDs) and decentralized identity frameworks.
  • Designed and deployed ERC-20 tokens and ICOs with secure contract implementations.
08
2019 Contract
Techitree Solutions

Senior Consultant, Web Development

  • Built full-stack web applications using React.js, Vue.js, Node.js, and Python.
  • Led front-end development of responsive interfaces and integrated backend APIs.
09
2018 - 2019 Full-time
DomusCoins

Blockchain Developer

  • Deployed smart contracts on Ethereum for secure, efficient token operations.
  • Built decentralized applications integrating frontend interfaces with blockchain backends.
10
2016 - 2018 Full-time
CodeCrunch TechLabs

Fullstack Developer

  • Built and maintained the studentdesk.in platform with frontend and backend features.
  • Developed responsive web and mobile applications with cross-platform performance.

Portfolio

Projects

A selection of projects spanning AI agents, DeFi protocols, and full-stack platforms.

DeFi and AI project visualization
AI + Blockchain $10K+ hackathon wins

Web3Agent

AI-driven platform that lets users execute complex blockchain operations through natural language commands.

LangChain CrewAI Solidity React.js Web3
AI + Blockchain

Web3Agent 2.0

Second iteration with enhanced multi-chain support, improved natural language processing, and expanded DeFi operation capabilities.

LangChain CrewAI Solidity Multi-Chain Web3
AI

Private AI

Privacy-first AI agents with encrypted backend systems and real-time sentiment analysis.

LangChain AutoGen FastAPI CrewAI
AI

Currently.social

AI-powered social platform with LLM-driven personalization, content recommendations, and moderation.

Python FastAPI OpenAI CrewAI AWS
DeFi

TrustSwap

DeFi staking smart contracts enabling secure and efficient token staking for thousands of users.

Solidity DeFi Web3 React.js
DeFi

Velvet Capital

DeFi asset management protocol with multi-chain portfolio rebalancing and yield optimization.

Solidity DeFi Tokenomics Multi-Chain
DeFi

PHPT — Philippine Stablecoin

Philippine Peso-pegged stablecoin and exchange platform. Built core Solidity contracts for minting, burning, on-chain settlement, plus a Telegram-based payment wallet (2020).

Solidity Stablecoin ERC-20 Telegram Bot DeFi
Full-Stack

Cointopper

Full-stack cryptocurrency management and trading platform with real-time dashboards and multi-account operations.

PHP Laravel Angular.js MySQL
AI

The Thing - Private AI

Privacy-first AI platform with encrypted backend systems, decentralized storage, and real-time sentiment analysis.

LangChain AutoGen CrewAI FastAPI
Blockchain

Wallet-as-a-Service

Secure, scalable digital asset management platform with multi-chain support and multi-sig wallets.

Smart Contracts Multi-Chain Node.js REST APIs

Skills

Technology skills and tools

Blockchain

Solidity Smart Contracts DeFi NFTs Tokenomics DAO Multi-Chain Web3

AI & Agents

LangChain CrewAI AutoGen LLM APIs Prompt Engineering

Backend

Python FastAPI Flask Node.js GoLang PostgreSQL MySQL MongoDB

Cloud & DevOps

AWS Azure GCP Docker CI/CD Nginx Kubernetes

Frontend

React.js Vue.js Angular React Native

Leadership

Team Lead Product Development Architecture Agile/Scrum

Volunteer & Community

Developer community workshop

Chainlink Advocate

Active

Chainlink Labs, Ahmedabad

Mar 2022 - Present

  • Hosted 15+ events and workshops reaching 2,000+ students to kickstart their blockchain learning journey across Ahmedabad.
  • Educated developers and communities on decentralized oracle networks and smart contract integrations.
15+

Events

2K+

Students

4+

Years

Academic and computer science education

Education

2012 - 2015 MCA

Masters of Computer Application

B H Gardi College of Engineering and Technology

2010 - 2012 BCA

Bachelor of Computer Application

Sanskar Institute of Management & Information Technology

Get in Touch

Have a project in mind or want to collaborate? Drop me a message.