# Senior Threat Hunter

**Company**: Leidos
**Location**: Fort Huachuca, AZ
**Work arrangement**: hybrid
**Experience**: senior
**Job type**: full-time
**Salary**: $107,900.00 - $195,050.00
**Category**: Security
**Industry**: Aerospace & Defence

**Apply**: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Sierra-Vista-AZ/Senior-Threat-Hunter_R-00190103?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_d277b1a1-b1e

## Description

The C5ISR Center Cyber Security Service Provider (CSSP) is a premier defensive cyber operations organisation supporting the Department of War (DoW). Operating 24x7x365, the team provides continuous monitoring, threat detection, incident response, and vulnerability management across a diverse, multi-tenant subscriber environment.

In this role, you will proactively identify, investigate, and mitigate sophisticated cyber threats across subscriber networks. You will apply deep knowledge of the cyber threat landscape to develop advanced detection strategies, test threat-hunting hypotheses, and identify and neutralise adversary activity targeting the Department of Defense Information Network (DoDIN).

**Primary Responsibilities:**

- Lead and support incident response during high-severity cyber incidents, providing expert analysis and recommending appropriate containment, remediation, and recovery actions.

- Conduct proactive threat hunting across cloud and on-premises subscriber environments to identify and investigate malicious or suspicious activity before it causes mission impact.

- Identify adversary tactics, techniques, and procedures (TTPs) and develop countermeasures, including custom signatures, detection rules, and correlation logic.

- Build, tune, and monitor AI-assisted detections, including machine learning capabilities, to identify adversary behaviour and movement within customer environments.

- Apply advanced cybersecurity tools and methodologies to detect, analyse, and mitigate cyber threats while integrating threat intelligence into sensing and detection infrastructure.

- Develop and refine threat-hunting hypotheses based on intelligence, emerging threats, anomalous activity, and known adversary behaviour.

- Produce clear, actionable reports documenting findings, risk, and recommended remediation actions for technical teams, stakeholders, and senior leadership.

- Collaborate across cybersecurity, IT, and network teams to strengthen the security posture of subscriber systems and environments.

- Stay current on emerging threats, attack techniques, technologies, and industry trends, translating new intelligence into improved detection and response capabilities.

- Develop and deliver cybersecurity training for threat hunters, network defenders, and other relevant personnel to strengthen technical knowledge and incident response capabilities.

- Mentor team members and help foster a culture of technical excellence, continuous learning, collaboration, and improvement.

- Brief senior leaders, including SES and Flag Officer-level stakeholders, on cyber threat activity, significant incidents, and cybersecurity trends as needed.

**Basic Qualifications:**

- Bachelor's degree and 8+ years of relevant cybersecurity experience.

- 7+ years of experience in cyber analysis, threat hunting, and/or purple-team or blue-team operations.

- Experience working for or with a U.S. Government Cyber Security Service Provider (CSSP).

- Demonstrated experience investigating sophisticated cyber threats and developing or improving threat detection capabilities.

- Working knowledge of adversary tactics, techniques, and procedures (TTPs) and their application to threat hunting, detection engineering, and incident response.

- Experience operating in complex enterprise environments that may include cloud, SaaS, and on-premises infrastructure.

- Certification requirements (e.g., Security+) and a CSSP Analyst certification (e.g., CEH, GCIH, or equivalent).

- Active TS/SCI security clearance.

- Excellent written, verbal, and interpersonal communication skills, including the ability to translate complex technical findings into clear, actionable information for technical and executive audiences.

**Location:** Hybrid 3 days on-site at Fort Huachuca

**Clearance:** U.S. citizenship and an active TS/SCI clearance.

**Pay Range:** $107,900.00 - $195,050.00

## Skills

### Required
- cybersecurity
- threat hunting
- incident response
- cloud security
- machine learning
- AI-assisted detections
- adversary tactics
- techniques and procedures (TTPs)
- detection engineering
- cyber analysis
- purple-team or blue-team operations

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Source: [Apply at leidos.wd5.myworkdayjobs.com](https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Sierra-Vista-AZ/Senior-Threat-Hunter_R-00190103?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)