Hey There, Iā€™m Jayakumar,

a Smart Contract Engineer passionate about blockchain security, automated auditing, and DeFi innovations. I specialize in contract security automation, bytecode analysis, fuzzing and NFT solutions. Helping secure Web3 applications through cutting-edge research and tooling. šŸš€

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Technologies

My Tech Stack

  • Languages

    • Solidity
    • Yul
    • Rust
    • Python
    • JavaScript
  • Frameworks

    • Next.js
    • Node.js
    • React.js
    • Ether.js
    • Web3.js
  • Tools

    • Hardhat
    • Remix
    • Foundry
    • Slither
    • Echidna
    • Halmos
    • Brownie

About Me

Driven by curiosity, research, and innovation, I specialize in:

  • Blockchain security, smart contract development, and decentralized applications.
  • Contract security automation, bytecode analysis, and transaction tracing, contributing to the detection of multi-million dollar scam.
  • Formal verification, fuzzing, and static analysis to enhance smart contract security across EVM-based blockchains.
  • Researching and implementing on-chain automation, ERC-998 NFTs, DeFi security frameworks, and scalable smart contract architectures.
  • Building security-focused development tools, enhancing testing methodologies, and optimizing blockchain-based infrastructure.
  • Beyond tech, I enjoy exploring new ideas through books and blogs, hiking to refresh my mind, and watching anime as a way to appreciate storytelling and creativity.
  • Passionate about securing Web3 and continuously pushing the boundaries of blockchain innovation šŸš€

Experience

Acomplishments

Open source Contribution

Slither, Halmos

Winners - capture the spec

Certora at DSS 2024

Won multiple bounties

ETH global hackathons

BEC vantage[2020]

Cambridge University

Completed multiple CTF's

Damn Vulnerable De-Fi , Paradigm , Rare Skills Gas-puzzles and Ethernaut

De-Fi Specialization

Duke University(Coursera)


Projects

Multimon

Multimon


This is a Cross-chain, 998, Dynamic NFT's used in a Adventurous Exploration Game.It is nothing a but Pokemon Game in multi-chain where each chain is a realm.

Tech Stack
  • Solidity
  • HyperLane
  • React js
  • Ether js
  • Revise API
EVM Slot Reader

EVM Slot Reader


It is a Online tool which is mainly used to read private variables from verfied as well as unverfied contracts on EVM based chains.It returns the parsed output in the human readable form from hexdecimal fomrat stored on-chain.

Tech Stack
  • Solidity
  • Ether js
  • Next js
POS Blockchain

POS Blockchain


P2P connection established, Nodes automatically sync with each other when a transaction is posted. Implemented Block validation, Signature Validation, Transaction Validation and POS consensus protocol.

Tech Stack
  • Python
NFT Marketplace

NFT Marketplace


A fully functional NFT Marketplace with all the basic features and an creator dashboard deployed on the polygon testnet.

Tech Stack
  • Nextjs
  • solidity
  • Tailwind CSS
  • Hardhat
  • ether js
Marketplace (Online Course Platform)

Marketplace (Online Course Platform)


An upgrade to traditional platforms such as Udemy, coursera with a web3 view while Integraing it with existing web2 platforms.

Tech Stack
  • web3js
  • Truffle
  • Next js
  • Tailwind CSS
  • Solidity
Stop loss

Stop loss


A stop loss order is a tool that automatically sells your selected assets when its price reaches a specified level, called the stop price. We have implemented Trailing stoploss as a key feature.

Tech Stack
  • Solidity
  • Ether js
  • Next js
  • chainlink oracle
  • chainlink keeper function
  • push protocol
Slice pay

Slice pay


Bridging the gap of crypto based micropayments and manage expense among groups, where in a single user pays for a group, which are then settled later by the individuals through both Fiat / Crypto

Tech Stack
  • Solidity
  • Ether js
  • Next js
  • push protocol
  • chainlink oracle
Edu-Lend

Edu-Lend


It is a education lending platform where all the certificates provided by the students are attested on chain and progress of sponsored are sent respective sponsors.

Tech Stack
  • Solidity
  • Ether js
  • Next js
  • push protocal
  • chainlink keeper function
  • push protocol
Marketplace (Online Course Platform)

Marketplace (Online Course Platform)


An upgrade to traditional platforms such as Udemy, coursera with a web3 view while Integraing it with existing web2 platforms.

Tech Stack
  • web3js
  • Truffle
  • Next js
  • Tailwind CSS
  • Solidity
Stop loss

Stop loss


A stop loss order is a tool that automatically sells your selected assets when its price reaches a specified level, called the stop price. We have implemented Trailing stoploss as a key feature.

Tech Stack
  • Solidity
  • Ether js
  • Next js
  • chainlink oracle
  • chainlink keeper function
  • push protocol
Slice pay

Slice pay


Bridging the gap of crypto based micropayments and manage expense among groups, where in a single user pays for a group, which are then settled later by the individuals through both Fiat / Crypto

Tech Stack
  • Solidity
  • Ether js
  • Next js
  • push protocol
  • chainlink oracle
Edu-Lend

Edu-Lend


It is a education lending platform where all the certificates provided by the students are attested on chain and progress of sponsored are sent respective sponsors.

Tech Stack
  • Solidity
  • Ether js
  • Next js
  • push protocal
  • chainlink keeper function
  • push protocol

" To hell with circumstances, I create opportunities." - Bruce Lee.