Fully Remote Software Engineer

Radley James; Remote; GBP 60,000 - 80,000; Full time

Job summary

A leading digital assets firm is searching for a Senior Backend Developer located in Leeds, UK. In this hands-on role, you will build and maintain backend services and public APIs using Rust and Python, work closely with smart contracts, and contribute to a high-performance DeFi trading platform. Candidates should have a strong background in Rust and Python, with 3–4+ years of crypto/DeFi experience. This position offers a unique opportunity to work in a cutting-edge environment.

Qualifications

• 3–4+ years of experience in crypto / DeFi‑native roles.
• Strong experience with backend engineering in Rust and Python.
• Practical experience interacting with Solidity smart contracts.

Responsibilities

• Building and maintaining backend services and public APIs in Rust and Python.
• Working directly with EVM smart contracts at an application level.
• Contributing to the evolution of a performance‑critical DeFi trading platform.

Skills

Rust

Python

Solidity

Understanding of DEXs

Operating production systems

Job description

We’re working with a crypto-native DeFi trading platform, backed by a leading digital assets firm (client name kept confidential), to hire a Senior Backend Developer. The team is building high-performance, decentralized trading infrastructure with a strong focus on execution quality and user experience.

This is a hands‑on role covering backend engineering, smart contract integration, and trading‑adjacent systems, working closely with experienced engineers, product, and UX in a fast‑moving, production‑focused environment.

What you’ll be doing

• Building and maintaining backend services and public APIs in Rust and Python
• Working directly with EVM smart contracts at an application level
• Contributing to the evolution of a performance‑critical DeFi trading platform

What we’re looking for

• Strong experience with Rust and Python
• 3–4+ years in crypto / DeFi‑native roles
• Practical experience interacting with Solidity smart contracts (not just high‑level)
• Understanding of DEXs and trading concepts (hands‑on or theoretical)
• Comfortable operating production systems in a cloud environment