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Senior Cybersecurity Threat Hunter III with Security Clearance

InvictusAlexandria, VA🇺🇸United StatesPosted 7 Sept 2026

Why This Role Stands Out

Leverage your expertise in threat intelligence and advanced analytics to proactively identify sophisticated cyber threats in a hybrid environment, contributing to national security with a TS/SCI clearance. This role offers significant growth as you lead complex hunts, develop new methodologies, and mentor junior analysts within a reputable organization. You'll thrive here if you are a driven and analytical cybersecurity professional eager to make a substantial impact.

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Alexandria, VA, United States
Posted
5 days ago

Job Description

Title: Senior Cybersecurity Threat Hunter III Location: Alexandria, VA  Clearance: TS/SCI with the ability to obtain and maintain a CI polygraph Job Details:

  • Lead complex, hypothesis-driven threat hunts across multiple enterprise data sources and enclaves to identify sophisticated or previously undetected adversary activity
  • Proactively analyze security telemetry to identify indicators of compromise, anomalous behavior, and adversary activity that has not met an incident threshold or has evaded automated security controls
  • Assess and correlate data from multiple sources, including network, endpoint, identity, SIEM, threat intelligence, vulnerability, and other available security data
  • Document hunt activity, findings, evidence, and recommended follow-on actions in authorized systems and initiate or support incident-response processes when malicious activity is identified
  • Provide relevant findings and trends for SOC operational reporting, significant-activity reporting, and defensive awareness
  • Develop and prioritize hunt campaigns based on threat intelligence, mission risk, adversary TTPs, detection coverage, incident lessons learned, and environmental changes
  • Perform advanced behavioral analysis and identify patterns indicative of persistence, credential abuse, lateral movement, command and control, collection, or other adversary activity
  • Serve as an escalation point for junior threat analysts and provide technical guidance on hunt methodology, analytical pivots, and evidence validation
  • Translate successful hunt findings into actionable requirements for detection engineering, watch operations, security engineering, and incident response
  • Develop reusable hunt playbooks, queries, analytic methods, documentation standards, and training materials
  • Mentor junior personnel and support exercises, knowledge sharing, and assessment of threat-analysis proficiency Requirements:
  • Bachelor's degree from an accredited institute in a technical discipline applicable to the position; an additional 4 years of may be substituted in lieu of a degree
  • Minimum six (6) years of relevant experience in addition to education level
  • Significant hands-on experience conducting threat hunting, advanced cyber analysis, or adversary-focused investigations
  • Strong knowledge of MITRE ATT&CK, adversary TTPs, threat intelligence application, and network/host/identity security telemetry
  • Experience developing hunt hypotheses and converting analytical findings into detection or defensive improvements
  • Experience mentoring analysts or leading complex analytical efforts
  • Must possess current DoD 8570 IAT II or IAM II certification
  • Experience working in a DoD or IC environment
  • Current active TS/SCI clearance, with the ability to obtain and maintain a CI polygraph

Equal Opportunity Employer/Veteran/Disabled

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