Security Engineer — FinOps & Trading Infrastructure

Blockchain is seeking a hands-on Security Engineer embedded with the Institutional Trading and FinOps team in Paris. You will own the secure operation of off‑chain trading processes and infrastructure, focusing on risk assessments, control implementation, and automation to detect anomalies.

You will collaborate with Trading, Middle Office and Quant teams to map data flows, define the target state, and drive posture uplifts with third‑party vendors and CI/CD integrations.