Blockchain Developer

Smart Contract Developer (Enterprise Blockchain)

London HQ 2 days a week

We’re looking for an experienced Smart Contract Developer with strong expertise in enterprise blockchain platforms, Solidity‑based smart contracts, and cloud‑native backend services.

This role is ideal for someone who has delivered production‑grade blockchain solutions across regulated industries such as banking, payments, supply chain, or sustainability and enjoys working within consortium‑led environments.

Developer Profile

• Senior Software Developer (Node.Js, Typescript or Java (Spring Boot) with strong blockchain focus)
• Strong knowledge of Ethereum‑compatible platforms including GoQuorum and Hyperledger Besu
• Experience with enterprise blockchain frameworks such as R3 Corda and Ripple
• Solid understanding of microservices and asynchronous architectures
• Familiarity with REST APIs, event‑driven systems, and message queues
• Strong understanding of blockchain security, permissions, key management, and transaction integrity

Key Responsibilities

• Design, develop, test, and deploy smart contracts across Ethereum, GoQuorum, Hyperledger Besu, and Corda platforms
• Build asset tokenisation solutions and on‑chain/off‑chain transaction workflows
• Develop and integrate RESTful APIs and microservices using Node.js and/or Java
• Ensure security, scalability, and performance of blockchain applications
• Collaborate with architects, product owners, and external partners across multi‑organisation blockchain networks
• Lead or mentor development teams and promote engineering best practices
• Support cloud‑native deployments across Azure and AWS
• Contribute to innovation initiatives, POCs, and Layer 2 scaling exploration
• Participate in design reviews, governance, and blockchain security audits

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