Senior Cyber Threat Hunter — Proactive Defender (Remote)

Fidelity Information Services, LLC; Oregon; Hybrid; USD 120,000 - 160,000; Full time

Job summary

FIS Management Services, LLC seeks a Senior Cyber Security Analyst – Cyber Threat Hunting (CTH) in Jacksonville, FL to drive proactive, hypothesis-based threat hunts across endpoints, networks, identities, and cloud telemetry, reducing dwell time in the FIS environment.

You will execute complex investigations using CrowdStrike Falcon, Splunk, Azure Sentinel, and QRadar; document outcomes; and translate threat intel and MITRE ATT&CK tactics into durable detections and response playbooks.

Qualifications

• Bachelor's degree or foreign equivalent in Computer Engineering, Computer Science, Cybersecurity, or related field.
• 5 years of experience in information security, threat hunting, incident response.
• Experience with EDR and SIEM platforms (CrowdStrike Falcon; Splunk, Azure Sentinel, QRadar).
• Scripting in Python, PowerShell, and Bash; mapping threat intel to MITRE ATT&CK.

Responsibilities

• Conduct proactive threat hunts across endpoints, network, identity, and cloud telemetry.
• Investigate with EDR and SIEM; correlate evidence; scope, contain, and remediate incidents.
• Document hunt outcomes and map TTPs to MITRE ATT&CK.
• Collaborate with SOC, Pen Testing, and Detection Engineering to operationalize detections.

Skills

Threat hunting

Incident response

EDR

SIEM

Python

PowerShell

Bash

Threat intel

MITRE ATT&CK mapping

Education

Bachelor's degree or foreign equivalent in Computer Engineering, Computer Science, Cybersecurity or related field

Tools

CrowdStrike Falcon

Splunk

Azure Sentinel

QRadar

Anomali

Job description

FIS Management Services, LLC seeks a Senior Cyber Security Analyst – Cyber Threat Hunting (CTH) in Jacksonville, FL to drive proactive, hypothesis-based threat hunts across endpoints, networks, identities, and cloud telemetry, reducing dwell time in the FIS environment.

You will execute complex investigations using CrowdStrike Falcon, Splunk, Azure Sentinel, and QRadar; document outcomes; and translate threat intel and MITRE ATT&CK tactics into durable detections and response playbooks.