3 of 3 Remote/Hybrid Ethereum Jobs in London

Blockchain Security Architect, Vice President

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
digital asset solutions. Strong understanding of cryptography, PKI, encryption, digital signatures, key management, and secure communication protocols. Experience with blockchain platforms such as Ethereum, Hyperledger Fabric, Corda, Canton, Quorum, Polygon, Solana, or similar technologies. Knowledge of smart contract security considerations and common blockchain attack vectors. Experience conducting threat modeling, security ...

Blockchain Architect/lead

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £500/day Negotiable
design of blockchain solutions, including consensus models, data structures, cryptographic frameworks, and node architectures. Platform Evaluation: Select and implement optimal blockchain platforms (e.g., Ethereum, Hyperledger Fabric, Corda, Polygon, Avalanche) based on enterprise needs. Hands-on Engineering: Actively contribute to the development of smart contracts and core components. Integration & Scaling: Define … enterprise architecture. Blockchain Expertise: 3+ years of dedicated, hands-on experience designing and delivering distributed ledger systems. Platforms & Smart Contracts: Deep technical proficiency with Ethereum, Hyperledger, or Corda , alongside smart contract development languages ( Solidity, Chaincode, DAML, or Rust ). Core Development: Strong background in languages like Java, Python ...

Blockchain Architect

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day
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 … 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 ...