Leonardo Massazza
Vicente López, Buenos Aires, Argentina
Summary
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RockstarLeonardo Massazza is a product-focused software engineer and founder with six years of experience building and leading engineering efforts across startups and international companies. He has co-founded five startups—participating in a roughly 10x exit—and served as technical lead on two others, blending hands-on craftsmanship with product leadership. Comfortable across back-end and blockchain domains, he contributed to the Synthetix protocol by modernizing deployment scripts (web3 → ethers) and enhancing L1/L2 tests and escrow migration coverage. Based in Vicente López, Buenos Aires, he routinely juggles full-time roles with side projects and hobby products, having collaborated on over ten different products. Colleagues would describe him as pragmatic, entrepreneurial, and skilled at turning complex blockchain and backend challenges into reliable, testable systems.
5 years of coding experience
English, Spanish, French, Italian, Portuguese, German
Github Skills (4)
ethereum10
blockchain10
solidity10
ethersjs10
Programming languages (5)
Github contributions (5)
Synthetixio/synthetix
Jun 2021 - Jan 2023
Synthetix Solidity smart contracts
Role in this project:
Back-end Developer & Blockchain Engineer
Back-end Developer & Blockchain EngineerContributions:7 releases, 286 reviews, 290 commits in 1 year 8 months
Contributions summary:Leonardo's primary contribution involved replacing the web3 library with ethers in the Synthetix deployment scripts, specifically within the `deploy.js` file. They updated the code to utilize ethers for account creation and web3-utils replacements. Furthermore, the user integrated support for SynthsUSD in L1 and L2 integration tests and ported tests related to escrow migration, which involved modifying existing test files and adding new ones. This suggests a focus on the core smart contract logic, deployment, and testing of the Synthetix protocol.
synthetixethereumblockchainsoliditysmart-contracts
Synthetixio/external-nodes
Sep 2023 - Nov 2023
Contributions:3 reviews, 1 PR, 17 pushes in 1 month
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