Senior Cyber Defense Analyst: Defender XDR Expert

General Dynamics Information Technology; Fairfax (VA); On-site; USD 106,000 - 144,000; Full time

Job summary

General Dynamics Information Technology is seeking a cybersecurity professional with 5+ years of experience to investigate, analyze, and respond to incidents across enterprise environments.

You will leverage Microsoft Defender XDR, Defender for Endpoint, Defender for Identity, and Defender for Office 365 to detect, analyze, and mitigate threats while aligning security controls with NIST, RMF, and ISO standards.

Qualifications

• 5+ years of related experience in cybersecurity, information security, or incident response.
• Experience with Microsoft Defender XDR suite and Sentinel.
• Knowledge of NIST, RMF, CMMC, FedRAMP, CIS Controls, ISO 27001.
• Experience with SIEM and SOAR technologies.
• Security-related certifications such as CISSP, GIAC, or SC-series.

Responsibilities

• Investigates, analyzes, and responds to cybersecurity incidents within a network environment.
• Uses Defender XDR and other tools to analyze events and mitigate threats.
• Monitors alerts, investigates incidents, and coordinates response activities.
• Assesses cybersecurity policies, controls, and access management for devices, apps, and cloud services.
• Ensures security plans align with organizational and regulatory requirements.
• Identifies risks and recommends corrective actions to improve security posture.
• Collaborates with stakeholders to improve detection and incident response capabilities.

Tools

Microsoft Defender XDR

Microsoft Defender for Endpoint

Microsoft Defender for Identity

Microsoft Defender for Office 365

Microsoft Purview

Microsoft Sentinel

Job description

General Dynamics Information Technology is seeking a cybersecurity professional with 5+ years of experience to investigate, analyze, and respond to incidents across enterprise environments.

You will leverage Microsoft Defender XDR, Defender for Endpoint, Defender for Identity, and Defender for Office 365 to detect, analyze, and mitigate threats while aligning security controls with NIST, RMF, and ISO standards.