0xpenwright

Solo Web3 engineer working pseudonymously since 2022. I ship audit-ready
  smart contracts and the documentation developers actually read — both,
  from one person.

  What I ship:
  — Smart contracts: ERC-20, 721, 1155, 4337 (Account Abstraction), 4626 vaults
  — Hardhat / Foundry test suites with 90%+ line coverage
  — NatSpec + Vocs/Mintlify docs sites
  — Wallet/payment integrations: Viem, Wagmi, RainbowKit, Privy, Pimlico

  Recent work (all public, all CI-green):
  — github.com/0xPenwright/gas-sponsor-paymaster (ERC-4337 paymaster, 100% lines)
  — github.com/0xPenwright/crypto-payment-gateway (non-custodial USDC invoicing)
  — github.com/0xPenwright/protocol-docs-starter (Vocs+Viem docs template)

  Available 20–30 hours/week. Payment in USDC/USDT on Ethereum, Polygon,
  Base, Arbitrum, Optimism via Request Finance:
  app.request.finance/create/633560518783137d