Guillaume Le Saint
Founder, CEO at atato
Bangkok, Thailand
Summary
👤
Senior🎓
Top SchoolGuillaume Le Saint is a founder and CEO with a decade of tech leadership experience who built atato into Thailand’s first licensed blockchain service provider, delivering MPC-powered, bank-grade custody and fintech solutions across APAC and Europe. Previously a CIO and long-time IT/security lead at a Bangkok-based multinational, he combines enterprise-grade security certifications and audits (ISO 27001, SOC 2/3) with hands-on product engineering. Under his leadership atato supports thousands of tokens, NFTs and dApps while offering predictable commercial terms and audited infrastructure, reflecting a practical focus on compliance and customer-friendly ops. Based in Bangkok with an MSc in Electrical Engineering from ESIEE Paris, he blends legacy enterprise IT experience with frontier crypto custody innovation. An uncommon strength is his ability to translate rigorous security practices into commercially viable fintech products that scale across regulated markets.
10 years of coding experience
6 years of employment as a software developer
Master’s Degree, MSc Electrical Engineering, Master’s Degree, MSc Electrical Engineering at ESIEE PARIS
Github Skills (51)
ethereum10
blockchain10
solidity9
security9
contract9
golang9
go9
fabric9
abi9
p2p9
smart-contracts9
corda8
api8
evm8
geth8
Programming languages (5)
Github contributions (5)
glesaint/mist
Mar 2016 - Sep 2018
Mist browser
Contributions:2 PRs, 2 pushes in 2 years 5 months
javascriptreactmistbrowser
atato/securecompute
Sep 2021 - Sep 2021
Contributions:21 commits, 11 pushes, 3 branches in 3 days
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