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Maheswaran Velmurugan

GitHub profile
LinkedIn profile
Twitter profile

@Maheswaran1412

Maheswaran Velmurugan

@Maheswaran1412

Skill iconSolidity
Skill iconRust
Skill iconJavaScript
Node.js
Blockchain Development

Blockchain developer, Freelancer

Coimbatore, India

Maheswaran Velmurugan

Full Stack · Backend · Blockchain · Smart Contract Developer

Solo builder. Grant-funded. Shipped across 8+ chains.

Who I Am

I'm a full-stack and blockchain developer who builds end-to-end — from TypeScript CLI tools and Python SDKs to Solidity/Clarity/Rust smart contracts and React frontends. I ship independently without a team, and I audit the same protocols I know how to build.

Grant recipient from Arbitrum and the Stacks Foundation.
Security researcher with 15+ confirmed findings across Sherlock, Code4rena, and Immunefi.
Polkadot Blockchain Academy graduate.

Skills

Languages: TypeScript · Python · Solidity · Rust · Clarity · Cairo · Move · JavaScript

Frameworks: Node.js · React · Next.js · Hardhat · Foundry · Anchor · web3.py · viem

Chains: Ethereum · Arbitrum · Solana · Stacks · Rootstock · Polkadot · Starknet · BNB · Aptos

Featured Projects

Stylus-Toolkit — Arbitrum Grant Approved

CLI development environment for Arbitrum Stylus (Rust) smart contracts. Think Hardhat, but for Stylus.

npm install -g stylus-toolkit

  • init

    with 4 contract templates (basic, ERC20, ERC721, DeFi)

  • build

    to WASM,

    profile

    for side-by-side Rust vs Solidity gas benchmarks

  • dashboard

    analytics UI,

    dev

    one-command Docker testnet,

    deploy

    to Arbitrum
  • 32.6% average gas savings proven · 224 NPM downloads · Both milestones shipped

🔗 github.com/soloking1412/Stylus-Toolkit

Rootstock Agentic DeFi Framework

MCP framework that lets AI agents autonomously manage DeFi positions on Rootstock/Bitcoin — with policy enforcement and session-scoped spend limits.

  • 5 MCP tools: get protocol data, simulate swaps, execute intents, check position health, fetch balances
  • 5 hard-coded policy rules block unsafe actions before broadcast (zero-address transfers, selfdestruct, >10 RBTC single-tx, spend cap overflows, non-whitelisted contracts)
  • Integrates Money on Chain + Tropykus (Compound fork on Rootstock)
  • Every decision written to an audit log

🔗 github.com/soloking1412/Rootstock-Agentic-DeFi-Framework

Rootstock Python SDK

Python SDK for the Rootstock (RSK) blockchain — wallet management, ERC-20 tokens, smart contracts, RNS domain resolution.

pip install rootstock-sdk

🔗 github.com/soloking1412/Rootstock-Python-SDK

SatoshiYield — Stacks Endowment Grant

Non-custodial sBTC yield optimizer on Stacks — aggregates APY from Bitflow, ALEX, Zest, Velar, and Hermetica, and lets you rebalance into the best position in one click.

  • Clarity 4 smart contracts: vault, yield-tracker, rebalancer, extensible trait interface
  • Node.js + TypeScript indexer normalizing live APY data across protocols
  • React frontend with Leather + Xverse wallet support
  • 5% performance fee on yield only — never touches principal

🔗 github.com/soloking1412/satoshi-yield

Security Research

Active auditor on Sherlock, Code4rena, and Immunefi with 15+ confirmed findings. I audit the same kinds of DeFi protocols I build — which means I find vulnerabilities that generalist auditors miss.

🔗 audits.sherlock.xyz/watson/soloking

Links