DeFi Developer

Radley James
City of London, England
5 months ago
Applications closed

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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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