Blockchain Developer

JR United Kingdom; Newport; Remote; GBP 80,000 - 100,000; Full time

Job summary

A growing Global Investment organisation is seeking a Senior Blockchain Engineer to develop innovative solutions involving smart contracts, APIs, and backend systems. This contract role offers a competitive daily rate and the opportunity to work on a transformative digital platform in the financial sector. Ideal candidates will possess extensive experience in blockchain technologies and smart contract development, contributing to projects that redefine investment strategies.

Qualifications

• 5+ years of backend/blockchain development including 2+ years on live smart contract deployments.
• Deep understanding of EVM architecture, blockchain consensus, and gas mechanics.
• Experience integrating blockchain features into financial or investment products.

Responsibilities

• Build secure and scalable smart contracts and backend systems.
• Support the build of a new digital platform for tokenized assets.

Skills

Backend development

Blockchain development

Smart contracts

Node.js

Go

Rust

Solidity

APIs

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