DeFi Architect | Smart Contract Developer | Author | Security Expert

📍 Location: Montevideo, Uruguay
📧 Email: castiglionemaldonado@gmail.com
📱 Telegram: @Fatima_CM
🔗 LinkedIn: fatima-castiglione-maldonado
📚 Medium: @FatimaFlash
📖 Book: Introduction to Blockchain with Ethereum

For Ethernity Technologies:

Rust/Solana Developer - Isle of Man

• Development in Rust on Solana (devnet and mainnet)
• Identity management and transaction processing
• Implementation of scalable blockchain solutions

Blockchain Developer - Slovenia

• **Solidity, Go
• Multi-chain exchange dApp

Blockchain Developer - Stockholm

• Solidity, Go, Rell for smart contracts
• NFT marketplace + bridge development
• Development of blockchain game with blockchain technology

Smart Contracts Developer - San Marino

• Solidity + HardHat for contract development
• Token and TGE with vesting schedules
• Staking dApp with Web3 integration

Ethereum Developer - London

• Ethereum, HardHat, IPFS for NFT protocol
• NFT protocol for music with royalty management
• Integration with decentralised payment systems

Technical Lead - San Francisco

• Technical leadership in blockchain projects
• Backend for beverage supply chain system (Chai Vault)
• Architecture of enterprise solutions

Blockchain Developer - Texas

• Protocol for issuing regulated Securities on Ethereum
• Implementation of compliance and financial regulations
• Smart contracts for traditional financial instruments

Author:

Technical Author - London

• Author of the book: Introduction to Blockchain with Ethereum
• Available on Amazon
• Contribution to global blockchain education

Previous job:

Senior Developer - Buenos Aires

• Python (2013-2016) for bitcoin exchange
• Solidity (2017-2018) for DEX and other DeFi projects
• Development of decentralised financial solutions

Solidity Ethereum Solana Rust Web3.js Hardhat Ethers IPFS

JavaScript TypeScript React Python Go Express.js NestJS Next.js Node.js Flask Django Laravel

MongoDB MySQL PostgreSQL AWS Docker

Uniswap Sushiswap Aave Chainlink

• Published author at Packt Publishing House
• 15+ years of software development experience
• 10+ years specialized in blockchain and DeFi
• Active contributor in the blockchain ecosystem
• Expert in multiple blockchains: Ethereum, Solana, Polygon, Arbitrum
• Deep knowledge in traditional finance and DeFi

• 📖 Book: Introduction to Blockchain with Ethereum - Packt Publishing
• ✍️ Blog on Medium - Articles about blockchain and DeFi

🤝 Open to collaborations on interesting blockchain and DeFi projects