Security Engineer - Platform & Corporate( Crypto Platform)

We’re working with a high-growth crypto platform operating at scale.They are looking for a Security Engineer to take ownership of security across the entire organisation from application and infrastructure security through to wallets, multi-sig treasury structures, employee security and incident response.This is a hands-on engineering role, not a policy or compliance position.Responsibilities:Application, cloud & infrastructure securityCI/CD, IAM, secrets & key managementIncident response & threat monitoringBackend/API security reviewsWallet, custody & multi-sig securityOn-chain transaction and DeFi securityEmployee security, phishing & social engineeringData protection and security controlRequirements:Proven experience working directly in crypto/blockchain/DeFiStrong application + infrastructure security engineering backgroundCloud, Kubernetes, containers and CI/CD experienceAbility to review production backend codeStrong understanding of wallets, transactions and on-chain activitySomeone comfortable taking ownership and making decisions under pressureIf you have genuine crypto security engineering experience, I’d love to hear from you.