Sergio Ballestín
Cofounder & CTO at IE Law School
Valencia, Valencian Community, Spain
Summary
👤
Senior🎓
Top SchoolSergio Ballestín is a seasoned software engineer and CTO with 11 years of experience building production-grade systems and co-founding Exponentia, where he leads development of critical software. He combines deep hands-on expertise in Go, Python, Solidity and Kubernetes with practical blockchain experience across Ethereum, Stellar and Hyperledger, and teaches smart contracts at IE Law School. Sergio has repeatedly operated at the intersection of product and infrastructure—designing cloud-native architectures, DevOps pipelines and AI-enhanced tools like GuiA—while maintaining a background in telecoms and distributed systems from his Valencia engineering education. A creative thinker and status-quo challenger, he brings entrepreneurial grit, multidisciplinary technical depth and a propensity for turning research-grade ideas into auditable, legally-aware blockchain products.
10 years of coding experience
12 years of employment as a software developer
Technical Telecommunications Engineer, Web Services, Distributed Applications, Networks., Technical Telecommunications Engineer, Web Services, Distributed Applications, Networks. at Universitat de València
Spanish, English
Github Skills (30)
blockchain9
ethereum8
quorum8
nodejs7
go7
p2p7
golang6
javascript5
testing4
abi4
unirest3
php3
client-library3
guzzle3
geth3
Programming languages (9)
Github contributions (5)
serveba/adventofcode
Dec 2022 - Dec 2024
Contributions:1 review, 2 PRs, 7 pushes in 1 year 11 months
serveba/solidity_course
Sep 2019 - Oct 2020
Contributions:3 pushes, 1 branch in 1 year 1 month
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