Senior Detection & Response Engineer – From-Scratch Build

Open Select in London is seeking a hands-on Detection Engineer to build a from-scratch security detection and response capability for a fintech platform handling large daily transactions.

You will implement telemetry, tooling, and processes across AWS, on‑premise, Workforce IT and endpoints, reporting to the CISO and CTO.

Responsibilities include MITRE ATT&CK coverage, SOAR-driven containment, threat hunting, and leadership in a growing security function.

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