Blockchain Developer

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

Job summary

A growing Global Investment organization is seeking a Senior Blockchain Engineer to support the development of a new digital platform. This remote contract role involves building secure smart contracts and backend systems while integrating blockchain features into investment products. Ideal candidates will have extensive experience in blockchain development, particularly with smart contracts and various blockchain technologies.

Qualifications

• 5+ years of backend/blockchain development, including 2+ years on live smart contract deployments.
• Proficiency with Solidity and blockchain integration into financial products.

Responsibilities

• Build secure, scalable smart contracts and backend systems for tokenized assets.
• Work on protocol integrations within a regulated environment.

Skills

Backend Development

Blockchain

Smart Contracts

EVM Architecture

DeFi

Solidity

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