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 Spain.

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.

Accountabilities

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Own end-to-end security architecture for the custody and on-chain technology stack.

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Define security requirements and controls for HSM and MPC-based key management, transaction authorization, signing quorums, address whitelisting, and hot/cold wallet segregation.

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Establish secure processes for key ceremonies, delegated cold custody, staking deposits and withdrawals, and other critical digital-asset operations.

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Develop crypto-specific security standards, privileged-access controls, and secure SDLC requirements within a multi-account AWS environment.

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Partner with centralized Infrastructure Security, Application Security, IAM, and SOC teams to implement and maintain platform security capabilities.

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Define blockch

📌 Principal Security Architect (España)
🏢 Jobgether
📍 España