Software Engineer

Radley James; Remote; GBP 65,000 - 85,000; Full time

Job summary

A leading technology platform in Bolton is seeking a Senior Backend Developer to build and maintain backend services and public APIs using Rust and Python. The role requires strong experience in DeFi and interaction with smart contracts. The ideal candidate will have practical knowledge of decentralized exchanges and cloud environments, working closely with a team to enhance the performance of a critical trading platform.

Qualifications

• Strong experience with Rust and Python in production environments.
• Minimum of 3–4 years in crypto or DeFi roles.
• Practical experience with Solidity smart contracts at the application level.

Responsibilities

• Build and maintain backend services and public APIs.
• Work directly with EVM smart contracts.
• Contribute to the performance evolution of a trading platform.

Skills

Rust

Python

Solidity smart contracts

Decentralized exchanges (DEXs)

Cloud environments

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