Principal Security Engineer

This role leads security across a regulated digital-asset business, owning the custody and on-chain layer end-to-end including architecture, engineering, operations, and regulatory assurance. The Principal Security Engineer partners with central security teams to define crypto-specific requirements for cloud, application security, and IAM while ensuring robust controls for key management and transaction authorisation. The position requires deep expertise in blockchain security and experience operating within a matrixed security model to protect spot trading, staking, and on-chain services.