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Senior Microsoft Security Administrator
Job in
Virginia, St. Louis County, Minnesota, 55792, USA
Listed on 2026-09-14
Listing for:
Accelera Solutions
Full Time
position Listed on 2026-09-14
Job specializations:
-
IT/Tech
Cybersecurity, IT Support
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- Continuously monitoring Defender health, alerts, onboarding status, sensor health, policy enforcement, and security configuration.
- Ensure NGAV solutions are running optimally and address any alerts or issues.
- Perform routine checks and updates to maintain peak performance.
- 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.
- 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.
- 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.
- Verify comprehensive security across Windows, Linux, and mobile devices.
- Report any platform-specific issues to the engineering team.
- Generate and review detailed reports on security posture, incidents, and compliance.
- Ensure dashboards and alerts are functioning correctly and report any issues.
- Follow established procedures and guidelines for maintaining Microsoft Defender solutions.
- Escalate any issues or anomalies to the engineering team.
- Ensure WDAC policies are correctly applied and functioning as intended.
- Report any policy violations or issues to the engineering team.
- 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.
- 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
- 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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