Threat Hunter - Senior - EY GDS Spain - Hybrid

Cyber Security – Senior Threat Hunter

The opportunity:

We are looking for SOC L3 Threat Hunter is responsible for proactively identifying advanced, stealthy, and previously unknown threats across enterprise environments. This role operates beyond alert-driven SOC operations, focusing on hypothesis-based threat hunting, adversary behaviour analysis, and closing detection gaps across Microsoft Sentinel, Microsoft Defender for Endpoint, and Defender for IoT.

The role serves as a technical authority within the SOC, supporting L1/L2 analysts, partnering with Incident.Response and Detection Engineering teams, and continuously improving the organization’s threat visibility and SOC maturity.

Your key responsibilities:

· Conduct hypothesis-driven, TTP-centric threat hunts using telemetry from Microsoft
Sentinel and Microsoft Defender platforms.

· Develop hunt hypotheses based on:

Adversary campaigns

MITRE ATT&CK te...