About Sebastien Rousseau

Sebastien Rousseau

Principal Systems Architect · 19 Years in Production Infrastructure

Sebastien Rousseau has spent nearly two decades architecting, building, and securing high-volume transaction processing systems, institutional payment rails, and cryptographic protocols across global financial centres.

Background & Pedigree

• 19 Years in Production Systems: Deep experience across corporate and investment banking (CIB), payment rails, and developer productivity tooling.
• Author of Open-Source Tools: Creator of Corral, KyberLib (FIPS 203 ML-KEM), Bank Statement Parser, and hsh with over 45.7M+ total downloads across crates.io.