Blockchain Developer

JR United Kingdom; Hounslow; Remote; GBP 100,000 - 125,000; Full time

Job summary

A leading global investment organization is looking for a Senior Blockchain Engineer to build a new digital platform. This contract role involves developing secure smart contracts and backend systems for tokenized assets within a regulated environment. Candidates should have extensive experience in blockchain development, especially with Solidity and DeFi. This opportunity is for those based in the UK.

Qualifications

• 5+ years of backend/blockchain development.
• Deep understanding of EVM architecture and DeFi primitives.
• Experience integrating blockchain features into financial products.

Responsibilities

• Build secure, scalable smart contracts.
• Develop backend systems supporting tokenized assets.
• Work within a regulated environment creating innovative investing products.

Skills

Backend Development

Blockchain Development

Smart Contracts

Solidity

DeFi

Tools

Hardhat

Ethers.js

Web3.js

Foundry

Job description

Social network you want to login/join with:

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