DeFi Systems Engineer – Rust/Python for Latency Trading

Radley James; Greater London; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

Radley James seeks a DeFi Developer in Greater London to join a technical trading team. This role involves building high-performance systems in Rust and Python for decentralized markets, with a strong focus on end-to-end ownership across the trading stack. The ideal candidate will have a software engineering background with 3–7 years of experience, particularly in crypto or DeFi contexts. The position also welcomes remote candidates from Europe.

Qualifications

• 3–7 years of solid software engineering experience.
• Strong production experience with Rust and Python.
• Deep understanding of the current DeFi landscape.

Responsibilities

• Build high-performance systems for decentralized markets.
• Focus on production systems covering execution and on-chain integrations.
• Manage and maintain systems on cloud infrastructure.

Skills

Production experience with Rust

Hands-on experience with smart contracts and Solidity

Experience in crypto or DeFi-native roles

Understanding of decentralized exchanges

Building and maintaining public APIs

Understanding of trading concepts

Cloud infrastructure management

Job description

Radley James seeks a DeFi Developer in Greater London to join a technical trading team. This role involves building high-performance systems in Rust and Python for decentralized markets, with a strong focus on end-to-end ownership across the trading stack. The ideal candidate will have a software engineering background with 3–7 years of experience, particularly in crypto or DeFi contexts. The position also welcomes remote candidates from Europe.