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Robert Half Logo Robert Half · IT - Administration

Security Analyst

United States, Dallas · Job Posted June 29, 2026
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Job Description

We are seeking a Security Analyst to support and strengthen our cybersecurity operations across a growing enterprise environment. This role will focus on monitoring, analyzing, and responding to security threats using Microsoft security technologies and endpoint protection platforms, including Microsoft Defender and SentinelOne. The ideal candidate has experience in threat detection, incident response, endpoint security, vulnerability management, and security operations in a mid-to-large enterprise setting.

Job Responsibility

  • Monitor security alerts and events across endpoint, identity, email, cloud, and network security platforms
  • Investigate and respond to security incidents using tools such as Microsoft Defender, Microsoft Defender for Endpoint, Microsoft 365 Defender, Microsoft Sentinel, and SentinelOne
  • Perform triage, analysis, containment, eradication, and recovery activities for cybersecurity incidents
  • Review and tune alerting rules, detection logic, analytics, and response workflows to improve security operations effectiveness
  • Analyze suspicious activity, malware detections, phishing attempts, unauthorized access, and endpoint threats
  • Support the administration and optimization of Microsoft security tools, including policy configuration and dashboard/report review
  • Conduct vulnerability reviews and support remediation tracking with IT and system owners

Requirements

  • 3+ years of experience in cybersecurity, information security, SOC, or security operations
  • Hands-on experience with Microsoft Defender products, including Defender for Endpoint and/or Microsoft 365 Defender
  • Experience with endpoint detection and response tools such as SentinelOne
  • Experience investigating security incidents and performing incident response activities
  • Knowledge of security operations concepts including SIEM, EDR, XDR, threat detection, phishing analysis, and vulnerability management
  • Familiarity with Microsoft Sentinel, log analysis, and alert correlation
  • Understanding of identity and access security concepts, including MFA, Conditional Access, and privileged access
  • Working knowledge of Windows security, Active Directory, Entra ID, and Microsoft 365 environments
  • Ability to analyze logs, identify indicators of compromise, and escalate or remediate threats appropriately
  • Strong documentation, analytical, and communication skills

What we offer

  • medical
  • vision
  • dental
  • life and disability insurance
  • 401(k) plan
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