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Senior Microsoft Security Administrator

Job in Virginia, St. Louis County, Minnesota, 55792, USA
Listing for: Accelera Solutions
Full Time position
Listed on 2026-09-14
Job specializations:
  • IT/Tech
    Cybersecurity, IT Support
Salary/Wage Range or Industry Benchmark: 110000 - 140000 USD Yearly USD 110000.00 140000.00 YEAR
Job Description & How to Apply Below

Job Details

Job Location:

Remote - Mc Lean, VA 22102

This position is full time remote and requires the candidate hold an active secret clearance.

Responsibilities
  • Monitoring Endpoint Detection and Response (EDR):
    • Continuously monitoring Defender health, alerts, onboarding status, sensor health, policy enforcement, and security configuration.
  • Managing Next-Generation Antivirus (NGAV):
    • Ensure NGAV solutions are running optimally and address any alerts or issues.
    • Perform routine checks and updates to maintain peak performance.
  • Maintaining Attack Surface Reduction:
    • Ensure rules and controls are in place to minimize the attack surface of endpoints, as provided by the SOC
    • Report any deviations or issues to the engineering team for review.
  • Integrating Cloud-Delivered Protection:
    • Verify that real-time updates and threat intelligence from the Microsoft cloud are being received and applied.
    • Report any discrepancies or issues to the engineering team.
  • Connecting with SIEM Solutions:
    • Ensure seamless integration of Microsoft Defender with Microsoft Sentinel and other SIEM tools.
    • Monitor and maintain centralized logging, analytics, and reporting dashboards.
    • Perform data analysis via the SIEM tool as required.
  • Ensuring Cross-Platform Protection:
    • Verify comprehensive security across Windows, Linux, and mobile devices.
    • Report any platform-specific issues to the engineering team.
  • Delivering Comprehensive Reporting and Analytics:
    • Generate and review detailed reports on security posture, incidents, and compliance.
    • Ensure dashboards and alerts are functioning correctly and report any issues.
  • Applying Prescribed Procedures:
    • Follow established procedures and guidelines for maintaining Microsoft Defender solutions.
    • Escalate any issues or anomalies to the engineering team.
  • Implementing Windows Defender Application Control (WDAC):
    • Ensure WDAC policies are correctly applied and functioning as intended.
    • Report any policy violations or issues to the engineering team.
  • Integrating Microsoft Defender, Intune, and Purview for Data Loss Prevention (DLP):
    • Ensure DLP policies are correctly implemented and functioning across endpoints, mobile devices, and cloud services.
    • Implement approved DLP waivers for authorized users and devices.
    • Monitor DLP incidents and report any policy violations or data exfiltration attempts to the engineering team.
    • Maintain unified reporting and alerts for any DLP-related issues.
  • Qualifications
    • A bachelor’s degree in computer science, Information Security, or a related field.
    • 3+ Years of relevant experience
    • Experience with Microsoft Defender for Endpoint and Microsoft Defender for Cloud, including Defender for Servers.
    • Familiarity with endpoint security, threat hunting, and incident response.
    • Familiarity with SIEM solutions, especially Microsoft Sentinel.
    • Excellent attention to detail and problem-solving skills.
    • Good communication and collaboration skills to interact effectively with stakeholders at all levels.
    • Understanding of industry compliance standards (e.g., NIST SP 800-53) and relevant regulations (e.g., RMF, DISA STIGs, DoDI 8500.01/8510.01, CMMC/NIST 800-171) is advantageous.
    • Willingness to stay updated with the latest cybersecurity trends and emerging security tools.
    • Required DoD 8140 compliant certification such as CompTIA Security+
    • Secret Clearance
    Desired Skills
    • Experience with Service Now or other ticketing system
    • Experience administering and working with Windows and Linux operating systems
    • Microsoft Active Directory/Entra
    • Microsoft PowerBI Dashboarding
    • Advanced Power Shell scripting or prior software development experience
    • DoD PKI

    Accelera Solutions is an Equal Opportunity Employer/Veterans/Disabled.

    Position Requirements
    10+ Years work experience
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