Blockchain Developer

Blockchain Developer

London / Remote

£90,000–£110,000

We’re looking for a hands-on Blockchain / DLT Developer to join a growing technology team building distributed ledger solutions for financial services.

The key requirement - this is primarily a private / permissioned blockchain DLT role.

We’re looking for someone who has genuine hands-on experience building and deploying enterprise or permissioned blockchain solutions - not solely public-chain / Web3 experience.

You’ll work across a combination of permissioned DLT, smart contracts and public-chain technologies, helping develop a proprietary enterprise blockchain platform and its surrounding applications.

What you’ll do

• Build and deploy private / permissioned DLT and smart contract solutions.
• Develop blockchain applications for financial services, digital assets and capital markets.
• Contribute to a proprietary enterprise blockchain platform, including protocol and tooling development.
• Integrate DLT with APIs, backend services and wider platform infrastructure.
• Work with technologies including Ethereum, Hedera, Algorand and enterprise DLT.
• Build, test and optimise secure smart contracts.
• Collaborate with architects, engineers, product teams and clients.

What we’re looking for

• Hands-on private / permissioned / enterprise DLT experience — e.g. Hyperledger Fabric, Besu, Corda, Quorum or similar.
• Strong blockchain fundamentals across consensus, cryptography, tokenisation and DLT architecture.
• Experience with Solidity / Ethereum smart contracts.
• Experience with security tokens, digital assets or tokenisation.
• Strong development skills in Go, Java, Python or Node.js.
• Experience with Web3.js, Ethers.js, Hardhat, Foundry or equivalent tooling.
• Ideally, experience across financial services, capital markets or fintech.