astierfe

🔗 Web3 Fullstack Developer | Blockchain Ethereum & DeFi

15 years of System Integration Architecture experience (BNP Paribas, EDF, Banque de France, GRDF) transferred to the blockchain ecosystem. This natural transition leverages my deep expertise in distributed systems, security, and software architecture to build production-ready decentralized applications (dApps).

💡 What I bring to Web3 Projects

My background in enterprise architecture provides a rare systemic perspective within the Web3 ecosystem. I design secure smart contracts and scalable dApp architectures with the rigor of a Senior System Architect.

Technical Skills :
- Smart Contracts : Solidity, Foundry, Hardhat, OpenZeppelin
- Blockchain Integration : The Graph (subgraphs), Chainlink oracles, event-driven backends
- Fullstack dApp : Next.js 15, React, TypeScript, Wagmi v2, RainbowKit
- Backend & Data : Python, Flask, Node.js, MongoDB, Redis, Celery
- Architecture : UUPS upgradeable patterns, security-first, testing

5 deployed projects (Sepolia Testnet)

1. LendForge - DeFi over-collateralized lending protocol with automated liquidations, Chainlink oracles, TheGraph subgraph integration, and multi-asset support.

2. ChainStaker - Multi-tier staking platform (APY 5-12%) featuring a Python/Flask event-driven backend and advanced MongoDB analytics.

3. ModularNFT - Complete ERC-721 collection (1000 NFTs) with EIP-2981 royalties, batch minting, and IPFS metadata handling.

4. ModularMarketplace - Peer-to-peer NFT marketplace with automated royalty distribution and ReentrancyGuard protections.

5. UUPSVendingMachine - UUPS pattern implementation with V1→V2 upgrade and exhaustive UML documentation (Alchemy EVM Chain Certified 2024).

🎓 Certifications
- Alchemy EVM Chain (2024) - Blockchain Ethereum
- TOGAF 9.1 (2012) - Architecture d'Entreprise
- TIBCO BusinessWorks - Integration Architecture

📍 Remote-first (France/Europe) | Immediately Available
📬 [email protected]