Blockchain Architect

Summary: The Blockchain Architect role involves leading the design, development, and delivery of enterprise-grade blockchain solutions in a fully remote capacity. This position requires a combination of architecture leadership and hands-on engineering, focusing on secure and scalable distributed ledger solutions. The architect will collaborate with various teams to ensure compliance and performance while implementing best practices in security and governance. The ideal candidate will have extensive experience in blockchain technologies and smart contract development.

Key Responsibilities:

• Lead end-to-end design and architecture of blockchain solutions (consensus models, data structures, APIs, security frameworks).
• Evaluate and select blockchain platforms (Ethereum, Hyperledger Fabric, Corda, Polygon, Avalanche) based on business needs.
• Define architecture blueprints including node design, data flows, and enterprise integration (ERP, CRM, APIs).
• Design token models, identity frameworks, and smart contract architectures.
• Contribute hands-on to development of smart contracts (Solidity, Chaincode, DAML, Rust) and core components.
• Build PoCs, reference implementations, and production-grade blockchain applications.
• Define and implement API layers and integration patterns for legacy interoperability.
• Ensure scalability, performance, and alignment with enterprise architecture standards.
• Implement security best practices (smart contracts, node communication, key management).
• Define data privacy, identity, and access management models.
• Ensure compliance with regulatory frameworks (e.g. GDPR, KYC/AML, data sovereignty).
• Establish governance models including node onboarding, consensus configuration, and upgrade strategies.
• Collaborate with cloud, data, and DevOps teams for deployment, monitoring, and operations.

Key Skills:

• Strong hands-on experience with blockchain platforms (Ethereum, Hyperledger, Corda, or similar).
• Proficiency in smart contract development and modern programming languages (e.g. Solidity, Java, Python, Go, Rust).
• Experience designing and delivering distributed systems and API-driven architectures.
• Knowledge of cloud platforms (Azure, AWS, GCP) and DevOps practices.
• Strong understanding of security, cryptography, and regulatory considerations.
• Proven ability to deliver end-to-end solutions in enterprise or regulated environments.
• 8+ years in software engineering / architecture.
• 3+ years of hands-on blockchain experience.

Salary (Rate): £550 daily

City: City of London

Country: United Kingdom

Working Arrangements: remote

IR35 Status: inside IR35

Seniority Level: Senior

Industry: IT

Detailed Description From Employer:

Blockchain Architect

+9 months +

+Fully remote working

+Inside IR35

+£500 - £550 a day

We are seeking a hands-on Blockchain Architect to lead the design, development, and delivery of enterprise-grade blockchain solutions. This role combines architecture leadership with active engineering involvement, driving solutions from concept through PoC to production. You will work closely with data, cloud, and DevOps teams to deliver secure, scalable, and compliant distributed ledger solutions.

The role:

Lead end-to-end design and architecture of blockchain solutions (consensus models, data structures, APIs, security frameworks). Evaluate and select blockchain platforms (Ethereum, Hyperledger Fabric, Corda, Polygon, Avalanche) based on business needs. Define architecture blueprints including node design, data flows, and enterprise integration (ERP, CRM, APIs). Design token models, identity frameworks, and smart contract architectures. Contribute hands-on to development of smart contracts (Solidity, Chaincode, DAML, Rust) and core components. Build PoCs, reference implementations, and production-grade blockchain applications. Define and implement API layers and integration patterns for legacy interoperability. Ensure scalability, performance, and alignment with enterprise architecture standards. Implement security best practices (smart contracts, node communication, key management). Define data privacy, identity, and access management models. Ensure compliance with regulatory frameworks (e.g. GDPR, KYC/AML, data sovereignty). Establish governance models including node onboarding, consensus configuration, and upgrade strategies. Collaborate with cloud, data, and DevOps teams for deployment, monitoring, and operations.

Experience Required

Strong hands-on experience with blockchain platforms (Ethereum, Hyperledger, Corda, or similar). Proficiency in smart contract development and modern programming languages (e.g. Solidity, Java, Python, Go, Rust). Experience designing and delivering distributed systems and API-driven architectures. Knowledge of cloud platforms (Azure, AWS, GCP) and DevOps practices. Strong understanding of security, cryptography, and regulatory considerations. Proven ability to deliver end-to-end solutions in enterprise or regulated environments. Experience 8+ years in software engineering / architecture 3+ years of hands-on blockchain experience If you'd like to discuss this Blockchain Architect in more detail, please send your updated CV to chloe.manerowski@cbsbutler.com and I will get in touch.