I'm a Full-Stack Developer-Freelancer focusing on blockchain, Node.js, React, and PHP. My open-source work spans tools for smart contracts, Merkle proofs, Ethernaut/Capture-the-Ether solutions, Laravel-based apps, and various API integrations.

ABI CallData Visualizer Decode & visualize Ethereum calldata.	Merkle Tree Multi-Proof Visualizer Generate & explore multi-proofs.

• Blockchain: Smart contract development & auditing (Solidity, Hardhat, Ethers.js, web3).
• Web Back-End: Node.js/Express, Laravel, RESTful APIs, Redis/Asynq queues.
• Web Front-End: React, TypeScript, modern JS tooling.
• Databases: PostgreSQL, MySQL/MariaDB, MongoDB.
• DevOps: Docker, GitHub Actions, CI/CD pipelines.
• Security: Experience with trojan/malware analysis, code obfuscation patterns.

• SmartCrawl: A modular data-aggregation framework focusing on blockchain & analytics.
• Etherscan OpenAPI: OpenAPI 3.1 spec for the Etherscan API, enabling easier client generation.
• Ethernaut & Capture-The-Ether Solutions: Hardhat/TS solutions for popular security puzzle challenges.
• Lucky Duck Game (Laravel)
  
• Zen Payment API Skeleton: A streamlined PHP library to handle purchase, refund, and payout workflows. It provides a clear SDK structure, typed requests/responses, and PHPUnit tests, making it easy to extend and integrate into e-commerce or payment applications.

• 👀 Interested in blockchain R&D, cryptography, full-stack solutions, dev tooling, and open-source security.
• 🌱 Currently learning advanced EVM internals, zero-knowledge proofs, and AI-assisted code generation.
• 💞️ Open to collaborate on innovative dApps, security audits, and complex data aggregation.
• 📫 Reach me viaGitHub issues, or for project inquiries DM me on Twitter (same handle).
• 😄 Pronouns: He/Him.
• ⚡ Fun fact: I enjoy reverse-engineering malicious code to turn the tables on hackers!

Feel free to explore my repositories for more open-source goodies!

Actividad profesional subvencionada por la Junta de Andalucía — Consejería de Empleo, Empresa y Trabajo Autónomo.