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