Principal Security Architect (On-Chain & Digital Assets)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Principal Security Architect (On-Chain & Digital Assets) based in France.

Own security architecture across the custody and on-chain layer of a regulated digital-asset platform operating globally.
You will define and implement security requirements spanning architecture, engineering, operations, and regulatory assurance.
The role covers critical areas including MPC and HSM key management, transaction authorization, wallet security, staking, and blockchain integrations.
You will work closely with dedicated Infrastructure Security, Application Security, IAM, and SOC teams while providing specialized crypto-security leadership.
Your expertise will help protect transaction flows, digital assets, and key management systems against sophisticated operational and cyber risks.
You will also lead threat modeling, security assessments, incident response, and regulatory control mapping across international markets.
This is a hands-on principal-level opportunity for a security architect with deep digital-asset expertise who can translate complex technical risks into resilient controls and clear business outcomes.