Jaime Onzain
Senior Innovation Engineer
Spain
Summary
👤
Senior🎓
Top SchoolJaime Onzain is a Senior Full Stack Developer based in Spain with 10 years of experience building decentralized and web-scale applications, particularly across the Cardano ecosystem. He designs and ships end-to-end solutions—from React/Ionic frontends and Capacitor plugins to Java backends and secure native integrations—working on projects like identity wallets, passwordless browser extensions, and on-chain e-voting. Jaime combines blockchain node and DevOps expertise as a long-running Cardano stake pool operator with production habits from Big Data and real-time streaming work at Accenture. He contributes open-source tooling (Capacitor plugins and wallet projects) and has practical experience implementing SSI, KERI, and cryptographic libraries for secure, offline-capable apps. Curious and pragmatic, he blends protocol-level understanding with hands-on product delivery, and has authored Spanish stake pool documentation and several reusable npm packages.
10 years of coding experience
7 years of employment as a software developer
Universidad de GranadaPOLITEHNICA București National University for Science and Technology
Github Skills (46)
digital-identity10
decentralized-identifiers10
mobile-application10
cardano10
verifiable-credentials10
voting-system10
capacitor-plugin10
cordova9
backend9
capacitor8
swift8
wallet8
html8
android8
css8
Programming languages (8)
Github contributions (5)
jimcase/C64-Wallet
Apr 2021 - Apr 2021
Contributions:62 commits, 48 pushes, 8 branches in 19 days
jimcase/EMR-Ethereum
Jan 2021 - Jun 2021
Contributions:25 commits, 20 pushes, 2 branches in 5 months
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