Cor Pruijs
Co-Founder & CTO at Union Labs
Netherlands
Summary
🤩
Rockstar🎓
Top SchoolCor Pruijs is a pragmatic founder and CTO with 11 years of software engineering experience, currently building Union Labs' trust-minimized, zero-knowledge bridging protocol. He combines hands-on backend development—authoring a TypeScript SDK for CosmWasm transfers—with deep Rust and Nix enthusiasm from prior roles at Composable Finance and other startups. As a serial entrepreneur and freelance engineer, he has repeatedly shipped secure, production-ready systems across blockchain, web frontends, and data-driven products. Based in the Netherlands, he pairs practical implementation skills with system-level thinking and an emphasis on censorship resistance and high security. Notably, his open-source work on unionlabs/union reflects both protocol-level understanding and attention to developer ergonomics in cross-chain tooling.
11 years of coding experience
3 years of employment as a software developer
Bachelor Computer Science, Bachelor Computer Science at Utrecht University
Stackoverflow
617reputation
58kreached
2answers
6questions
Github Skills (15)
typescript10
typescripts10
sdk10
typescript-types10
blockchain9
cosmwasm9
api8
api-design8
javascript7
css6
ios6
background-color6
postgresql6
game-physics6
cocoa6
Programming languages (24)
Github contributions (5)
unionlabs/union
Aug 2024 - Apr 2025
The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:367 reviews, 452 PRs, 1158 pushes in 7 months
Contributions summary:Cor's contributions primarily involve developing the TypeScript SDK for a zero-knowledge bridging protocol. They implemented the initiation of UCS03 CosmWasm transfers from the TypeScript SDK by configuring test networks and enabling token transfers. Key contributions included implementing new functionality with a focus on improving the existing system and modifying the SDK's structure, suggesting a development role. The user also modified code in the application.
astroblockchainbridgecosmoscosmwasm
cor/composable
Jan 2023 - Feb 2023
Infrastructure for cross-chain applications
Contributions:85 pushes, 9 branches in 18 days
blockchaininfrastructurechaincross-chain-applicationscross-chain
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