Avensys Consulting UK
Blockchain Architect
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Role: Blockchain Architect
Location: UK/Remote (If travel is required it will be agreed in advance)
Type: 8 months Contract
Rate: GBP 500 Per Day – Inside IR35 MAXX
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.
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.
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Requirements
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- 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
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