Blockchain Developer

JR United Kingdom; Guildford; Remote; GBP 80,000 - 120,000; Full time

Job summary

A leading global investment organization is seeking a Senior Blockchain Engineer to join their team on a contract basis. This remote opportunity involves developing smart contracts and backend systems for innovative investment products, requiring expertise in Solidity and blockchain integration. Candidates must be located in the UK.

Qualifications

• 5+ years of backend/blockchain development experience.
• 2+ years working on live smart contract deployments.
• Deep understanding of gas mechanics and blockchain consensus.

Responsibilities

• Building secure, scalable smart contracts and backend systems.
• Integrating blockchain features into financial products.
• Working within a regulated environment on tokenized assets.

Skills

Backend Development

Blockchain Development

EVM Architecture

Solidity

DeFi Primitives

Tools

Hardhat

Ethers.js

Web3.js

Foundry

Job description

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Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35

We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of a new digital platform.

The successful candidate will be tasked with building secure, scalable smart contracts and backend systems powering tokenized assets and multi-chain infrastructure.

Required skills:

• 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments)
• Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives.
• Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry.
• Experience integrating blockchain features into real-world financial or investment products.

This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within a regulated environment, creating products that are reshaping the future of investing.

*please note that candidates must be based in the UK