Full Job Description
Senior Cyber Security Analysts - Cyber Threat Hunting (CTH) in Jacksonville, FL to drive proactive, hypothesis-based threat hunts across endpoint, network, identity, and cloud telemetry to uncover stealthy adversary activity, directly contributing to reductions in attack dwell time within the FIS environment . Implement independent execution of complex investigations using enterprise-level EDR and SIEM platforms, correlation of multi-source evidence, and rapid scoping, containment, and remediation support for incidents including malware, credential compromise, and unauthorized access. Responsible for clearly documenting hunt outcomes and investigative conclusions, translating threat intelligence and adversary TTPs into high-fidelity behavioral analytics mapped to frameworks such as MITRE ATT&CK. Partner with Security Operations Center, Penetration Testing Teams, and Detection Engineering stakeholders to operationalize successful hunts into durable detections and improved response playbooks. Automate and scale hunting and investigative workflows through scripting languages (PowerShell/BASH/Python), enrichment, and data analysis to improve speed, consistency, and signal quality. Lead threat hunting efforts in newly acquired or integrating M&A environments, requiring rapid assessment of unfamiliar architectures, establishment of baselines, identification of inherited risk and latent compromise, and hunting for pre- and post-acquisition adversary activity while informing integration and risk-reduction strategies. Provide technical direction, standards, and mentorship through threat hunting expertise, supporting FIS's internal Cyber Security function.
REQUIREMENTS:Bachelor's degree or foreign equivalent in Computer Engineering, Computer Science, Cybersecurity, or a related field, and five (5) years of experience in an information security or related role, including: performing threat hunting, cyber threat intelligence, and incident response activities within enterprise environments, including investigation of malware, credential compromise, and unauthorized access; investigating endpoint based security threats using enterprise endpoint detection and response (EDR) platforms, including CrowdStrike Falcon, involving behavioral analysis, process activity, command line execution, and persistence mechanisms; developing, tuning, and investigating security detections using security information and event management (SIEM) platforms including Splunk, Azure Sentinel, and QRadar, for analysis of authentication logs, endpoint telemetry, network events, and cloud audit logs; investigating malicious infrastructure threats, including analysis of malicious domains, credential harvesting activity, and adversary controlled infrastructure using enterprise security and threat intelligence platforms, including Anomali; supporting cybersecurity incident response activities, including incident triage, scoping, containment, and remediation; utilizing scripting and automation to support security operations, including use of Python, PowerShell, and Bash for data analysis, alert enrichment, workflow automation, and investigative support; and consuming and applying threat intelligence, including indicators of compromise (IOCs), adversary tactics, techniques, procedures (TTPs), open source intelligence (OSINT), and mapping activity to MITRE ATT&CK industry recognized frameworks. Telecommuting and/or working from home may be permissible pursuant to company policies.
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