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# Software Engineer (Prop Trading Firm)

- **Company:** Radley James
- **Location:** Greater London, UK (Remote available)
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Algorithmic Trading, Cloud Computing, Python (Programming Language), Software Engineering, Low Latency, Solidity
- **Published:** August 26, 2026
- **Apply:** https://www.collegerecruiter.com/job/2815180321-software-engineer-prop-trading-firm

## About the Role

They are looking for someone with a solid software engineering background and several years of experience (typically around 3-7). Experience with trading systems or DeFi is beneficial but not required., * Strong production experience with Rust and Python

 * Hands-on experience with smart contracts and Solidity at an application level
 * 3-4+ years in crypto or DeFi-native roles
 * Deep understanding of decentralized exchanges and the current DeFi landscape
 * Experience building and maintaining public APIs
 * Understanding of trading concepts, either practical or theoretical
 * Ability to run and maintain systems on cloud infrastructure
 * Based in London or working remotely from anywhere in Europe

Nice to have:

 * Experience designing, writing, and deploying smart contracts
 * On-chain trading or strategy development experience
 * Familiarity with ecosystems such as Solana, Sui, or Cosmos
 * Experience diagnosing performance, latency, or throughput issues
 * Interest in product design and user experience alongside engineering

## Description

Top global trading firm looking for a DeFi developer to join a small, highly technical trading team building high-performance systems that operate directly on decentralized markets.

The role is hands-on and focused on building production systems in Rust and Python, covering execution, on-chain integrations, and performance-critical components where latency and reliability are key. There is strong end-to-end ownership and clear visibility across the full trading stack.

They are looking for someone with a solid software engineering background and several years of experience (typically around 3-7). Experience with trading systems or DeFi is beneficial but not required.

What they're looking for:

 * Strong production experience with Rust and Python
 * Hands-on experience with smart contracts and Solidity at an application level
 * 3-4+ years in crypto or DeFi-native roles
 * Deep understanding of decentralized exchanges and the current DeFi landscape
 * Experience building and maintaining public APIs
 * Understanding of trading concepts, either practical or theoretical
 * Ability to run and maintain systems on cloud infrastructure
 * Based in London or working remotely from anywhere in Europe

Nice to have:

 * Experience designing, writing, and deploying smart contracts
 * On-chain trading or strategy development experience
 * Familiarity with ecosystems such as Solana, Sui, or Cosmos
 * Experience diagnosing performance, latency, or throughput issues
 * Interest in product design and user experience alongside engineering


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