Senior Cybersecurity Analyst

General Dynamics Information Technology, Inc.; United States; Remote; USD 90,000 - 130,000; Full time

Job summary

General Dynamics Information Technology, Inc. is seeking a cybersecurity professional to investigate, analyze, and respond to incidents within enterprise networks using Microsoft Defender XDR and related tools.

You will coordinate with stakeholders, implement security controls, and document findings while aligning with NIST and RMF guidance; 5+ years of experience required. Certifications such as Security+, CySA+, CISSP or equivalent are preferred to demonstrate expertise in defending complex

Qualifications

• 5+ years of experience in cybersecurity, information security, security operations or incident response.
• Experience investigating incidents across cloud, endpoint, identity, email and collaboration environments.
• Strong knowledge of security frameworks and compliance standards (NIST, RMF, CIS, ISO 27001).

Responsibilities

• Investigates, analyzes, and responds to cybersecurity incidents within an enterprise environment.
• Monitors security alerts and events using Microsoft Defender XDR and related tools.
• Coordinates incident response with technical and business stakeholders and documents findings.
• Evaluates and maintains cybersecurity policies, controls, and procedures aligned with regulatory requirements.
• Performs risk assessments, compliance testing, and threat investigations; supports data governance controls.
• May coach less-experienced professionals and contribute to improving detection capabilities.

Skills

Threat hunting

Incident response

Log analysis

Detection engineering

Security frameworks

Education

Security certifications (Security+, CySA+, CISSP, GIAC, SC-200/SC-300/SC-400)

Tools

Microsoft Defender XDR

Defender for Endpoint

Defender for Identity

Defender for Office 365

Microsoft Purview

Data Loss Prevention (DLP)

Insider Risk Management

Information Protection

Sensitivity Labels

Insider Risk Management

Microsoft Sentinel

NIST RMF

FedRAMP / CIS Controls / ISO 27001

Job description

Investigates, analyzes, and responds to cybersecurity incidents within a network environment or enclave.

Uses data collected from a variety of cyber defense tools and platforms, including intrusion detection systems (IDS), firewalls, endpoint protection technologies, network traffic logs, Microsoft Defender XDR, Microsoft Defender for Endpoint, Microsoft Defender for Identity, and Microsoft Defender for Office 365, to analyze events and mitigate threats.

Monitors, investigates, and responds to security alerts, incidents, and suspicious activity across enterprise environments using Microsoft security technologies and other security monitoring tools.

Interprets, analyzes, and reports all events and anomalies in accordance with computer network directives, including initiating, responding to, documenting, and reporting discovered incidents.

Evaluates, tests, recommends, coordinates, monitors, and maintains cybersecurity policies, procedures, and systems, including access management for hardware, firmware, software, and cloud services.

Ensures cybersecurity plans, controls, processes, standards, policies, and procedures are aligned with organizational and regulatory security requirements.

Identifies security risks and exposures, determines the causes of security violations, and recommends corrective actions to prevent recurrence and improve organizational security posture.

Supports the implementation and administration of Microsoft Purview solutions, including Data Loss Prevention (DLP), Information Protection, Sensitivity Labels, Insider Risk Management, and data governance controls.

Develops techniques and procedures for conducting cybersecurity risk assessments, compliance audits, threat investigations, and the evaluation and testing of hardware, firmware, software, and cloud technologies for potential security impacts.

Investigates and responds to security incidents involving unauthorized access, malware, phishing, data exfiltration, insider threats, fraud, attacks, or information leaks.

Collaborates with technical and business stakeholders to improve detection capabilities, incident response processes, and overall security operations effectiveness.

May coach and provide guidance to less-experienced professionals.

EDUCATION AND EXPERIENCE

Technical Training, Certification(s), or Degree, and 5+ years of experience in cybersecurity, information security, security operations, incident response, cyber defense, or related disciplines.

PREFERRED QUALIFICATIONS

• Experience with Microsoft Defender XDR, including Defender for Endpoint, Defender for Identity, Defender for Office 365, and Defender for Cloud Apps.
• Experience with Microsoft Purview Data Loss Prevention (DLP), Insider Risk Management, Information Protection, and Data Lifecycle Management.
• Experience investigating security incidents across cloud, endpoint, identity, email, and collaboration environments.
• Knowledge of threat hunting, incident response, log analysis, and detection engineering.
• Experience with SIEM and SOAR technologies, including Microsoft Sentinel.
• Familiarity with security frameworks and compliance standards such as NIST, RMF, CMMC, FedRAMP, CIS Controls, or ISO 27001.
• Relevant certifications such as Security+, CySA+, CISSP, GIAC, SC-200 (Security Operations Analyst), SC-300 (Identity and Access Administrator), SC-400 (Information Protection Administrator), or comparable certifications.