Blockchain Developer

JR United Kingdom; Leicester; Remote; 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 position involves building secure smart contracts and backend systems that support tokenized assets and multichain infrastructure. Candidates should have substantial experience in backend and blockchain development, with a specific emphasis on DeFi and smart contract technology.

Qualifications

• 5+ years of backend/blockchain development.
• 2+ years on live smart contract deployments.
• Proficiency in Solidity and related tools.

Responsibilities

• Building secure, scalable smart contracts.
• Developing backend systems for tokenized assets.
• Integrating blockchain features into financial products.

Skills

Blockchain development

Smart contracts

EVM architecture

Gas mechanics

DeFi primitives

Solidity

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