Senior Security Engineer - Proactive Security Lead (Remote)

Capital Markets Gateway LLC (CMG) is seeking a Senior Security Engineer to own security risk management, threat modeling, and governance initiatives. You will report to the CISO and drive cross program work with senior leadership, turning complex risks into actionable, repeatable security workflows.

The role covers cloud security, supply chain, endpoint and identity controls, and AI security, with a path from senior IC to broader leadership as the program scales.