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GuillermoSiaira/README.md

Guillermo Siaira

Economist & Web3 Full-Stack Developer — Solidity • Smart contracts • Cloud (GCP) • Python • TypeScript/React • Automation (n8n)

About

Certified Solidity Developer (ETH Kipu) — ERC-20/721, AMM & auctions; Hardhat/Foundry; Ethers; security tools: Slither/Mythril/Echidna.

I build smart-contract backends and on-chain data pipelines (EVM/Sepolia), stream data to BigQuery, and wire ops alerting with LLMs + n8n. Econ background → engineering rigor + product sense.

  • 🔭 Current: Gresham Agent (listener → price snapshot → sniper)
  • 🧪 Security: GPU Auditor (Slither/Mythril/Echidna + LLM)
  • 🧰 Stack: Solidity · Hardhat/Foundry · Ethers · Python · TypeScript/Node · n8n · QuickNode · GCP · Docker

Links

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  1. AuctionSystems AuctionSystems Public

    Auction systems in Solidity — English & Dutch models + simple UI.

    Solidity

  2. simpleswap-ui-vite simpleswap-ui-vite Public

    SimpleSwap UI (Vite) — minimal AMM demo on Sepolia. Swap tokens, manage liquidity, view recent txs. React + Vite + Ethers.

    TypeScript

  3. game-theory-app game-theory-app Public

    Interactive game-theory dapp (Free vs Proprietary) — Next.js + Solidity (Sepolia) — simulation + analytics.

    TypeScript

  4. SimpleSwap SimpleSwap Public

    Minimal AMM • Solidity • contracts + tests

    Solidity

  5. avalanche-audit avalanche-audit Public

    Smart-contract audit with Slither/Mythril/Echidna + LLM (DeepSeek). Reports to GCS. Tooling/automation.

    JavaScript

  6. solidity-tutor solidity-tutor Public

    Interactive Solidity Tutor — code editor + tx trace + AI helper. Next.js + TypeScript.

    TypeScript