Sean Casey
Blockchain Researcher - Bridge Assessment Grant at Uniswap Foundation
Puerto Rico, United States
Summary
👤
Senior🎓
Top SchoolSean Casey is a blockchain researcher and seasoned smart-contracts leader with 11 years of engineering experience, currently advising Enzyme and assessing cross-chain bridges for the Uniswap Foundation. As former CTO and Head of Smart Contracts at Enzyme, he architected and authored core DeFi protocols (Enzyme Blue and Onyx), managed integrations with 30+ major protocols, and ran rigorous security programs that kept $250M TVL operating without loss. He blends protocol design, safety-critical engineering, and developer productivity, using AI-assisted, test-driven workflows to accelerate high-quality delivery. A long-time contributor to Ethereum tooling and tests (including work improving Drizzle and refactoring Enzyme’s protocol contracts), he prioritizes clean, auditable code and robust integration patterns. Based in Puerto Rico, he pairs technical leadership with a curious background in anthropology and a penchant for kitesurfing and sailing.
11 years of coding experience
9 years of employment as a software developer
Ethereum Development, Ethereum Development at Study the BlockchainNanodegree, Blockchain Developer, Nanodegree, Blockchain Developer at UdacityMaster of Arts (M.A.), Anthropology, Master of Arts (M.A.), Anthropology at University of Hawaii at ManoaThe University of MelbourneBachelor of Science (B.S.), Biochemistry, Bachelor of Science (B.S.), Biochemistry at North Carolina State UniversityEthereum Development (advanced), Ethereum Development (advanced) at Truffle University
Japanese, Spanish
Github Skills (12)
drizzle10
javascript10
protocols10
solidity10
jestjs10
ethereum10
blockchain10
testing10
security9
smart-contracts9
redux8
fest7
Programming languages (5)
Github contributions (5)
enzymefinance/protocol
Nov 2019 - Dec 2022
Enzyme Protocol Implementation
Role in this project:
Back-end Developer
Back-end DeveloperContributions:731 commits, 93 PRs, 343 pushes in 3 years 1 month
Contributions summary:Sean primarily worked on refactoring and cleaning up various contracts within the Enzyme Protocol implementation. They focused on removing unused code, updating data structures, and improving the efficiency of the existing logic. Their contributions centered around the core aspects of the DeFi protocol, including price feeds, adapters, and fee management contracts.
enzymeblockchaindefiethereumprotocol
trufflesuite/drizzle-legacy
Jun 2019 - Jul 2019
Reactive Ethereum datastore for dapp UIs.
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:20 commits, 1 PR, 1 comment in 1 month
Contributions summary:Sean focused on adding and refactoring tests for the Drizzle library, specifically targeting network whitelisting functionality. They introduced new test files and blocks, and updated existing tests to ensure correct behavior regarding network restrictions. The contributions demonstrate a focus on test-driven development and maintaining the integrity of Drizzle's core features.
reactdappethereumdatastoreuis
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