Cyber Threat Hunt Lead

Gritter Francona

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Ashburn, Virginia, US on site Until 8/23/2026 5+ years exp First posted March 18, 2026 Last posted March 18, 2026
Job description

Gritter Francona is looking for a Cyber Threat Hunt Lead to support a potential project with the Department of Homeland Security. The Threat Hunt Lead will build and guide a proactive threat hunting capability for the Department of U.S. Customs and Border Protection (CBP). The Threat Hunt Lead will direct a specialized team in proactively searching for malicious activity across CBP networks that evades traditional security solutions. This role requires an offensive mindset, deep knowledge of attacker TTPs, and expert-level skills with SIEM and endpoint management tools. The Threat Hunt Lead will be responsible for developing hunt hypotheses, executing hunt missions, and coordinating with the SOC to create new detections based on your findings.

Key Responsibilities:

• Lead the CTH team to proactively and iteratively conduct threat hunting efforts against CBP networks, systems, and high value assets to detect and isolate advanced threats.

• Utilize threat models and Cyber Threat Intelligence to formulate hypotheses about attacker activity on CBP networks and systems to investigate during formal hunt missions.

• Propose corrective actions and inform necessary parties of security issues, reportable offenses, or cybersecurity best practices.

• Work with the CBP SOC to create new security content, including signatures and detection alerts, resulting from hunt missions and Purple Team engagements.

• Lead the Cyber Threat Hunt team to report significant findings to leadership and coordinate with asset owners to deconflict findings.

Requirements

  • A minimum of five (5) years of experience as a Tier III senior cyber threat hunt analyst performing threat analysis, technical analysis, and network asset traversal.
  • A minimum of five (5) years of hands-on experience, including recent experience with network-based security monitoring using cybersecurity capabilities.
  • A strong background in host and network-based forensics, intrusion detection, malware identification, and security content development.
  • Deep knowledge of and experience with security information and event management (SIEM) and networked-device management tools such as Splunk and Tanium.
  • Experience interpreting scripts (e.g., VB scripts, Python, C++) to support cyber threat detection.
  • Certified Ethical Hacker (CEH) or one of the following: DoD 8570 IAT Level II or IAM Level I or CSSP Analyst / Incident Responder.

Benefits

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k, IRA)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off (Vacation, Sick & Public Holidays)
  • Short Term & Long Term Disability
  • Training & Development
About this role

Summary

Lead threat hunting team to detect advanced cyber threats for CBP.

Job title

Cyber Threat Hunt Lead

Experience level

senior level

Minimum experience

5+ years exp

Industry

government

Location requirements

On-site in Ashburn, Virginia, with possible remote options.

Salary

Not specified

Management role

No

Skills & keywords

Required skills

threat analysisnetwork security monitoringhost and network forensicsSIEMPythonC++Certified Ethical Hacker

Preferred skills

None specified

Specializations

threat huntingnetwork securityincident detectionmalware analysisSIEM
Locations

Structured locations inferred from the posting.

Ashburn, VA, USA

On-site City