• Locations:
  • 🇦🇷 Buenos Aires, Argentina
  • 🇺🇸 Holbrook, NY
  • 🇵🇱 Wrocław, Poland
• Email: leo@buidlers.tech

Let's connect!

 

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🧠 About Me

Engineering Web3 since 2016, from lightweight personal tools to large-scale multichain DeFi platforms.
Passionate about merging usability best practices with secure, scalable architectures that create lasting impact.
I aim to contribute to projects where user experience, protocol safety, and community growth intersect.

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💼 Experience

Full Stack Engineer – Ethernaut DAO (Buenos Aires, Argentina — Feb 2025 – Present)

Developer of Ethernaut-CLI. Led transition to an AI-powered web platform using OpenAI APIs and full-stack Next.js architecture.

Full Stack Engineer – SeedLatam.org (New York, US / Remote — Apr 2024 – Jan 2025)

Bootstrapped syntra.pro, a DAO management platform for Optimism and Arbitrum. Explored Uniswap v4 hooks for hackathon planning.

Full Stack Engineer – EthLatam.org (New York, US — Mar – May 2024)

Launched quadratic funding platform and faucet on Optimism for 1500+ hackathon participants.

Full Stack Engineer – W3g.io / Maker Growth (Wrocław, Poland — Dec 2023 – Apr 2024)

Developed BI platform for MakerDAO campaign analytics using Next.js, Firebase, and off-chain data.

Backend Engineer – Mode.Network (Wrocław, Poland — Nov 2023 – Jan 2024)

Implemented backend logic in Go for MODE airdrop campaign handling 400M tokens.

Co-Founder & Tech Lead – Nata.Social (Lisbon, Portugal — Jan – Oct 2023)

Built social bookmarking integrating Lens, IPFS, Arweave, Push protocol. Won $120k in grants, Modular Hackathon BA winner, part of Kleros accelerator.

Full Stack Developer & Blockchain Consultant – Bloq Inc. (Chicago, US / Remote — Nov 2020 – Jan 2023)

Developed frontend, wallet, and L2 integrations for vesper.finance ($15M to $1.4B TVL growth). Built Ethereum staking/Algorand tools for Bloq.Cloud and Stake.bloq.com.

Head of Development – 8-Bit.io (Buenos Aires, Argentina — Aug 2018 – Jan 2020)

Built research tools with .NET/Azure/Xamarin integrating off-chain/on-chain data for top 1,000 crypto assets.

Full Stack & IoT Engineer – Indawo S.R.L. (Buenos Aires, Argentina — Jan 2017 – Aug 2018)

Built Linux-based IoT systems for safety, asset tokenization, cold chain with NFC/RFID and ERP integrations.

Full Stack Engineer – Digip.com.ar (Buenos Aires, Argentina — Dec 2013 – Jan 2017)

Delivered mobile/web systems with .NET stack, data visualizations, and integrated Firebase and PostgreSQL backends.

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🧰 Skills

Infrastructure: Bitcoin, Ethereum, Optimism, Solana, Avalanche, Polkadot, cross-chain bridges, DEX/CEX
Smart Contracts: Solidity, Hardhat, Foundry
Frontend: Next.js, React Native, Tailwind, TypeScript, JavaScript, Vue.js
Wallet & Web3 Integration: RainbowKit, Wagmi, ethers.js, viem, web3.js
Backend: Node.js, Express, Go, Rust, Python, Java
AI: Hugging face, LangChain, N8N, OpenAI API, LLM models (GPT, Gemini, Claude, Perplexity, Mistral, Llama)
Databases & Storage: PostgreSQL, MySQL, Supabase, Firebase, IPFS, Arweave, Ceramic
Web3 APIs & Indexing: Alchemy, Infura, Helius, The Graph, Moralis

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🎓 Education

• Degree in Information Systems – Universidad de Morón (Buenos Aires, Argentina)
• Solidity Developer – Blockchain Academy (Buenos Aires, Argentina)

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🌐 Languages

• Spanish: Native
• English: Advanced (C1)
• Portuguese: Intermediate (B1)
• Polish: Beginner (A1)

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🏆 Hackathons & Mentorships

• Modular Hackathon – King of Devs Evolution, Buenos Aires (Oct 2023)
• Founder’s Bootcamp – Kleros, Lisbon (Jan 2023)
• World Blockchain Hackathon – Babylon Project (Oct 2020)
• 1st Hackathon & Blockchain Congress – UTN, La Plata (Apr 2019)

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🤝 Community & Ecosystem Contributions

• Buidlers.tech (2019–Present): Co-founder, organized Web3 meetups/workshops in Buenos Aires.
• DeFi Latam (2020–Present): Early contributor to Latin America’s DeFi/EVM education.
• Argenpool (2016–2019): Key participant in Argentina’s first major crypto community.

Some stats

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Stack and Tools