Cyber Threat Hunter

Public Trust: None

Requisition Type: Regular

Your Impact

Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.

Job Description

Advance your career while impacting our national security in cyber as an Information Security Analyst Senior at GDIT. Here, technologists have many paths to grow a meaningful career supporting cyber missions and operations across the federal government.

MEANINGFUL WORK AND PERSONAL IMPACT

The Cyber Threat Hunter is responsible for proactively identifying, analyzing, and mitigating advanced cyber threats targeting enterprise, on-prem, cloud, and mission systems. This role leverages threat intelligence, behavioral analytics, hypothesis-driven hunting, adversary tactics/techniques/procedures (TTPs), and automation to detect malicious activity not identified by traditional security controls. Provide continuous monitoring of alert queues, triage security events, and monitor the health of data sources related to security sensors and endpoint security agents.

The ideal candidate possesses deep expertise in threat hunting methodologies, cyber threat intelligence (CTI), log analytics, scripting, cloud security, and SIEM technologies such as Splunk ES and Elastic. This role supports defensive cyber operations across on-premises, hybrid, and cloud environments.

WHAT YOU’LL NEED TO SUCCEED
Bring your cyber expertise and drive for innovation to GDIT. The Information Security Analyst Senior must have:

Threat Hunting Operations

• Conduct proactive and reactive threat hunts across enterprise networks, endpoints, servers, and cloud environments.

• Develop and execute hypothesis-based hunts using known adversary TTPs.

• Identify stealthy, persistent, or anomalous activity missed by automated detections.

• Pivot across multiple data sources to validate suspicious indicators.

Cyber Threat Intelligence (CTI)

• Leverage internal and external CTI feeds to enrich hunting operations.

• Translate intelligence reports into hunt hypotheses and detections.

• Analyze nation-state, criminal, and insider threat activity.

• Map adversary behavior to MITRE ATT&CK framework.

SIEM / Log Analytics

• Utilize Splunk or Elastic SIEM for advanced correlation searches, dashboards, detections, and threat investigations.

• Correlate logs from firewalls, EDR, DNS, authentication, proxy, cloud, and network sources.

• Tune detections to reduce false positives and improve fidelity.

Cloud Security Hunting

• Perform hunts within cloud environments such as Amazon Web Services, Microsoft Azure, and Google Cloud.

• Analyze cloud control plane logs, IAM activity, API abuse, storage misuse, and lateral movement.

• Hunt for persistence techniques in SaaS / IaaS / PaaS environments.

Automation & Engineering

• Develop scripts and automations to accelerate hunting and investigations.

• Build repeatable hunt playbooks and workflows.

• Integrate tools using APIs, SOAR, or custom automation.

• Automate enrichment of indicators and triage processes.

Incident Response Support

• Provide advanced analytical support to Incident Response teams.

• Validate indicators of compromise (IOCs)

• Support containment and eradication during active incidents.

● Security clearance level: TS/SCI Required

● US citizenship required

● Role requirements:

• Technical Training, Certification(s) or Degree, or additional years in lieu of degree

• 4+ years cybersecurity experience with 2+ years in threat hunting, SOC, IR, or CTI.

• Experience in DoW, Intelligence Community, or federal cyber environments preferred.

• Strong experience with Splunk or other SIEM platforms.

• Strong knowledge of CTI lifecycle and intelligence-driven defense.

• Experience creating hunt hypotheses and conducting structured hunts.

• Deep understanding of Windows, Linux, Active Directory, networking, and DNS.

• Knowledge of tools such as Trellix ESS, Splunk ES, Splunk SOAR, MAR/HX, NSM, Varonis, IDS, Stealthwatch, Cylance and ForeScout as duties performing cyber incident response and analysis.

• Familiarity with malware behavior and attacker tradecraft.

• Experience with cloud technologies (AWS, Azure, GCP).

Experience with one or more:

Ability to write or understand code in one or more:

• Python

• PowerShell

• Bash

• SQL

• Kusto Query Language

• JSON / YAML / Regex parsing

Compliance / Certifications

• DoD 8570 / 8140 compliant certification preferred such as:

• CompTIA Security+

• CySA+

• CASP+

• GIAC (GCIH, GCFA, etc.)

GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
● Growth: AI-powered career tool that identifies career steps and learning opportunities
● Support: An internal mobility team focused on helping you achieve your career goals
● Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
● Community: Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY
Explore a career in cyber at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your focus on defending and protecting what matters.

#armajobs

Work Requirements

Years of Experience

3 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Travel Required

10-25%

Citizenship

U.S. Citizenship Required