Senior Cyber Threat Hunting Specialist Job at Amentum (Redstone Arsenal, Huntsville)

Job Description

The Senior Cyber Threat Hunting Specialist supports the Missile Defense Agency (MDA) on the Integrated Research and Development for Enterprise Solutions (IRES) contract.

Job Responsibility

Serve as the primary Subject Matter Expert (SME) on advanced threats for the MDA Cyber Security Service Provider (MDA CSSP), collaborating with Defensive Cyber Operations, Cyber Threat Intelligence (CTI), Cyber Threat Emulation (CTE), and Forensics teams to drive unified defensive strategies
Develop and execute intelligence-driven hunt hypotheses to detect Advanced Persistent Threats (APTs) and anomalies that bypass traditional security controls
Map adversary Tactics, Techniques, and Procedures (TTPs) using the MITRE ATT&CK framework and integrate tactical threat intelligence into hunt operations
Analyze network traffic, host-based logs, and endpoint telemetry utilizing SIEM, EDR, and packet capture tools
Correlate asset, threat, and vulnerability data against known adversary exploits and techniques to determine impact and improve network defensive posture
Leverage actionable Cyber Threat Intelligence data to search for indicators of compromise and assist in the development of SIEM content/signatures to detect known attack patterns and make recommendations to improve detection capabilities, tune alerts, and close security gaps
Coordinate with CSSP subscribers to develop current configurations, rules, and signatures for cyber security related toolsets
Coordinate with CSSP subscribers to notify, investigate, and remediate discrepancies in security logging and CSSP alignment
Transition confirmed threats to Defensive Cyber Operations, providing forensic artifacts, root cause analysis, and actionable intelligence during active investigations
Create and maintain custom scripts (e.g., PowerShell, Bash, Elastic KQL, ES|QL) to automate data parsing, log aggregation, and routine hunt tasks
Provide technical mentorship, conduct training sessions, and participate in tabletop exercises to elevate the team's overall capability in advanced threat detection
Review data of ongoing intrusions or cybersecurity incidents and report, analyze, and document/report the findings in accordance with CJCSM 6510.01B guidelines
Provide support to internal and external insider threat and law enforcement / counterintelligence (LE/CI) agencies during cyber incidents / investigations
Advise security leadership and Defensive Cyber Operations teams on emerging adversary capabilities, translating tactical hunt findings into strategic recommendations for infrastructure hardening
Develop and maintain comprehensive documentation, including hunt runbooks, methodologies, and technical debriefs, ensuring actionable intelligence is effectively disseminated across multiple departments

Requirements

Must have 6 years of combined experience in Defensive Cyber Operations (DCO), to include enterprise-level security monitoring, incident response, and threat hunting
Must have 2 years of experience in management or leadership in a team environment
Must have experience applying the MITRE ATT&CK framework to security operations or intelligence analysis
Must have one, or more, of the following certifications: CFR, CySA+, GCFA, GCIA, GICSP
Must have an active DoW Top Secret with SCI Eligibility
Have experience with MS Office 365 suite applications (Word, Excel, PowerPoint, Visio, etc.)
Be able to multi-task and prioritize various projects and assignments in a dynamic work environment to meet scheduled/unscheduled customer requests
Be willing to travel up to 25% of the time
Be willing to support teams in a 24/7 operational environment and respond quickly to emergencies as needed
Have excellent communication skills, with the ability to translate complex technical findings into concise and actionable intelligence for senior leadership and non-technical stakeholders

Nice to have

Have a Master's degree, or higher, in Cybersecurity, Computer Science or related field
Possess one or more of the following advanced cybersecurity certifications: Offensive Security: OSCP, PNPT, GPEN | Forensics/Incident Response: GCFA, GCFE, GCIH, EC-Council Certified Hacking Forensic Investigator (CHFI) | Threat Hunting/Analysis: GIAC Certified Cyber Threat Intelligence (GCTI)
Have an active DoD Top Secret clearance
Have experience with security analysis and solutions in a WAN/LAN environment to include Routers, Switches, Network Devices, and Operating Systems (e.g., Windows, and Linux)
Have experience with other Security Operations Centers (SOC)/DCO tools/applications, such as Firewalls, Intrusion Detection Systems / Intrusion Prevention Systems, Network Security Manager, Forward Proxy, Spam Firewall, etc.
Have experience analyzing security compliance scans performed across a WAN (ACAS/Nessus preferred)
Have experience analyzing network and host-based threats (ESS preferred)
Be able to mentor and train personnel in an evolving, high-paced environment
Be familiar with DoD Security Operations Centers (SOC)
Be familiar with DCO/Cybersecurity Service Provider (CSSP)-guiding security policies and procedures
Have demonstrable experience in offensive security operations, such as penetration testing, red teaming, or exploit development
Have experience with advanced digital forensics, including host-based and memory analysis
Be proficient in scripting and data analysis with languages such as Python, PowerShell, Bash, or KQL to automate tasks and parse large datasets
Be familiar with the intelligence cycle and its application to cybersecurity operations
Have experience with hunt-centric security platforms, including industry-standard Endpoint Detection and Response (EDR), Security Information and Event Management (SIEM), and Security Orchestration, Automation, and Response (SOAR) tools
Be familiar with the application of Artificial Intelligence (AI) and Large Language Models (LLMs) in cybersecurity, including the ability to leverage AI-driven security tools and critically assess their output

What we offer

Health, dental, and vision insurance
Paid time off and holidays
Retirement benefits (including 401(k) matching)
Educational reimbursement
Parental leave
Employee stock purchase plan
Tax-saving options
Disability and life insurance
Pet insurance

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Senior Cyber Threat Hunting Specialist

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