Senior Software Engineer | ~£950/day Outside IR35 | 6-months initial contract | London

Industry: Trading

Location: London – 4 days in office

Job Type: Contract – 6-month initial

Our client is building the next generation of execution and order management (EMS/OMS) infrastructure for global commodities trading. You will join a small, fast‑moving engineering team designing and delivering a cloud‑native trading platform from the ground up, tightly integrated with risk, pricing, and market data systems to support high‑performance trading environments.

This is a senior, hands‑on role for an engineer who wants end‑to‑end ownership – from low‑level protocol integration through to distributed execution services and trader‑facing tooling.

What You’ll Be Doing

• Design and build core components of a modern EMS/OMS platform, including order routing, order lifecycle management, venue connectivity,...