Senior Security Engineer: Risk, Cloud & AI Security Leader

Capital Markets Gateway LLC (CMG) is hiring a Senior Security Engineer to own security risk management, threat modeling, and governance initiatives. You will report to the CISO and drive cross‑program security work with senior leadership, building scalable processes for cloud, supply chain, and identity controls across a remote‑first, London‑proximate team.

The role emphasizes hands‑on risk management, design reviews, and collaboration to mature our security posture, including AI security

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