Blockchain Security Architect

Salary: £60,000 - 90,000 per year

Requirements:

• We are looking for a degree in Computer Science, Cybersecurity, Information Technology, Engineering, or a related discipline.
• We value 10 or more years of experience in cybersecurity, application security, cloud security, software engineering, blockchain technologies, or related technology disciplines.
• We prefer demonstrated experience assessing or securing blockchain platforms, smart contracts, distributed ledger technologies, or digital asset solutions.
• We look for strong understanding of cryptography, PKI, encryption, digital signatures, key management, and secure communication protocols.
• We value experience with blockchain platforms such as Ethereum, Hyperledger Fabric, Corda, Canton, Quorum, Polygon, Solana, or similar technologies.
• We prefer knowledge of smart contract security considerations and common blockchain attack vectors.
• We value experience conducting threat modeling, security architecture reviews, or risk assessments for distributed systems and cloud-native applications.
• We look for understanding of cloud-native architectures, APIs, containers, Kubernetes, and modern application development practices.
• Professional certifications such as CISSP, CCSP, Certified Blockchain Security Professional (CBSP), Certified Blockchain Architect, AWS Security Specialty, or equivalent certifications are highly desirable.
• Experience within financial services, digital assets, tokenization, payments, or other highly regulated industries is preferred.
• We value interest in emerging technologies including digital assets, tokenization, smart contracts, decentralized finance (DeFi), and distributed ledger platforms.
• We need the ability to work effectively with engineering, architecture, cybersecurity, risk, and business teams in a global environment.
• Limited travel may be required based on business needs.

Responsibilities:

• We perform security architecture reviews for blockchain, distributed ledger, tokenization, and digital asset initiatives.
• We assess blockchain platforms, smart contracts, decentralized applications, and supporting infrastructure for security risks and design weaknesses.
• We partner with engineering, cloud, application, and cybersecurity teams to develop secure blockchain architecture patterns and security controls.
• We conduct threat modeling and security assessments for blockchain platforms, smart contracts, digital asset custody solutions, and supporting services.
• We define security requirements for cryptographic key management, wallet security, node security, consensus mechanisms, and cross-chain integrations.
• We evaluate third-party blockchain platforms, vendors, and service providers from a security and risk management perspective.
• We provide subject matter expertise on blockchain security threats, attack vectors, and emerging industry security practices.
• We work in accordance with our hybrid work model and support global stakeholders across multiple time zones.

Technologies:

• AWS
• Architect
• Blockchain
• Cloud
• Cryptography
• Ethereum
• Fabric
• Support
• Kubernetes
• Security
• NodeJS

More:

We are State Street, a global firm that helps institutional investors manage risk, respond to challenges, and drive performance and profitability. Our Security Architecture organization plays a critical role in protecting our applications, data, cloud platforms, and emerging technology initiatives. In this hybrid role, based in London, Kilkenny, or Edinburgh, we offer full-time employment, inclusive development opportunities, flexible work-life support, paid volunteer days, and vibrant employee networks. We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential.

last updated 34 week of 2026