Senior Software Engineer (EMS/OMS) - Commodity Trading - London - Contract or Perm
Cititec has partnered with a commodities trading firm seeking their next hire to join a small, high-ownership team. The team are building a next-generation execution and order management platform.
About the Role
You will help design and build core components of a modern EMS/OMS platform, including order routing, lifecycle management, venue connectivity, and execution workflows. The system is being built from the ground up as a cloud-native platform. This is a hands-on engineering role with real ownership from design through to production.
What You’ll Do
* Design and implement core execution and order management services
* Build and maintain FIX protocol integrations with exchanges, brokers, and liquidity providers
* Develop low-latency, production-grade trading infrastructure
* Work directly with traders, quants, and risk engineers to translate trading workflows into robust systems
* Ensure production reliability through observability, testing, and operational ownership
* Collaborate on risk and pre-trade controls, position tracking, and post-trade flows
Experience required
* Ideally, you'll have strong experience building EMS/OMS systems
* Hands-on experience in C++, Rust, or Python
* Practical experience with FIX protocol
* Experience with commodities is preferred