Head of Blockchain Security

Job Description

Company Overview

With an open and dynamic culture, the organization has the freedom to adapt to market needs, move swiftly to capitalization, and share learnings with clients and partnersbringing greater confidence to the institutional market for the benefit of all.

About the Role

Our client is seeking a Head of Blockchain Security to take ownership of governance, risks & controls, and security architecture across all blockchain-related processes. This role is critical to ensuring the secure design, deployment, and operation of blockchain infrastructure, including smart contracts, transaction approval processes, wallets, nodes, and Web3 applications.

You will work closely with Operations, DevOps, Compliance, and Product teams to embed security into the development lifecycle and operational workflows.

• Security Governance & Risk Management:
• Own and manage security controls for blockchain-related processes, including transaction approvals, smart contract deployment, secure wallet operations, and key management.
• Define and enforce Web3 security and compliance standards aligned with regulatory requirements and industry best practices.
• Conduct risk assessments and implement mitigation strategies across blockchain and DeFi systems.
• Architecture & Engineering:
• Design and review secure blockchain network architectures, including permissioned and public blockchain deployments.
• Collaborate with engineering teams to integrate security into the software development lifecycle (SSDLC).
• Operational Security:
• Oversee secure key management practices, including KMS, HSMs, MPC-based solutions and recovery processes.
• Monitor threat intelligence and respond to blockchain-specific threats, vulnerabilities, and incidents.
• Lead security reviews of smart contracts, decentralized applications (dApps), wallet security providers, and other crypto-related products.
• Cross-functional Collaboration:
• Work with Infrastructure, DevOps, Compliance, Operational Risk Management, and Product teams to align security with business goals.
• Contribute to a culture of transparency, innovation, and continuous improvement.
• Mentor team members and promote security awareness across the organization.

• Proven experience in blockchain security, including smart contract auditing, wallet security, infrastructure design, and cryptographic key management.
• Strong understanding of Web3 technologies, decentralized systems, and associated risks.
• Hands-on experience operating blockchain nodes in cloud-native environments.
• Knowledge of information security best practices and frameworks.
• Familiarity with secure SDLC practices and DevSecOps methodologies.
• Excellent verbal, written, and interpersonal communication skills.

• Strong understanding of Web3 technologies and decentralized systems.
• Experience with Layer 1 and Layer 2 blockchain protocols.
• Knowledge of cryptographic primitives and secure coding practices.
• Ability to manage complex projects in an enterprise environment.
• Effective team collaboration across all organizational levels.
• Highly developed problem-solving skills and analytical thinking capabilities.

• Hybrid work model (flexible, typically 3 days/week in office).
• Flexibility to support critical operations and incident response.
• Ability to lead and influence in a fast-paced, high-trust environment.