Charles Guillemet serves as the Chief Technology Officer (CTO) at Ledger, a position he assumed in 2019. He initially joined Ledger in 2017 as the Chief Security Officer, bringing with him a decade of experience in the Cryptography & Security sector.
His extensive expertise encompasses Cryptography, Blockchain, and Software Engineering. He is particularly interested in Decentralized protocols for Crypto, including Bitcoin, Ethereum, DeFi, DAO, NFT, and Layer 2 solutions.