Nicolas Barry
CTO at Stellar.org
Mountain View, California, United States
Summary
🤩
Rockstar🎓
Top SchoolNicolas Barry is a seasoned CTO and engineering leader with over two decades building highly distributed, redundant systems on commodity hardware and more than a decade in senior leadership roles. He blends hands-on contributions—most notably to stellar-core, the reference implementation for the Stellar network—with strategic architecture work at companies like Salesforce and Microsoft, shaping large-scale compute, capacity automation, and service topologies. His expertise spans C/C++, Go, C#, systems programming and cloud-native infrastructure, with a track record of designing for scale, safety, and security (including the first production implementation of the Stellar Consensus Protocol). Known for balancing business priorities with technical rigor, he drives execution, debates design tradeoffs, and still contributes directly to core code when needed. Based in Mountain View, he is security-conscious (publicly verifiable via Keybase) and passionate about technology that advances financial inclusion.
11 years of coding experience
20 years of employment as a software developer
Master's degree Applied Mathematics Computer Science, Master's degree Applied Mathematics Computer Science at ENSEEIHT
English, French, Spanish
Github Skills (7)
database-management10
c-language10
cprogramming-language10
testing9
performance-optimization9
multithreading8
distributed-systems7
Programming languages (14)
Github contributions (5)
stellar/stellar-core
Jan 2015 - Dec 2022
Reference implementation for the peer-to-peer agent that manages the Stellar network.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:123 releases, 737 reviews, 1814 commits in 8 years
Contributions summary:Nicolas primarily worked on the back-end functionalities, implementing features related to bucket operations, ledger management, and the transaction queue. Their contributions involved modifications to core components such as the BucketManager, LedgerManager, and TransactionQueue classes. They also focused on improving the overall robustness of the system, adding more detailed logging, and fixing potential vulnerabilities within the core application.
agentconsensusp2pblockchainstellar-network
MonsieurNicolas/stellar-core
Feb 2015 - Sep 2022
Contributions:187 commits, 16 PRs, 885 pushes in 7 years 8 months
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