Remote Senior Microsoft Defender Security Administrator

Accelera Solutions; Virginia (MN); Hybrid; USD 110,000 - 140,000; Full time

Job summary

Accelera Solutions is seeking a security-focused professional to manage Defender for Endpoint, Defender for Cloud, and SIEM integrations across Windows, Linux, and mobile endpoints.

The role emphasizes threat hunting, incident response, and DoD RMF/NIST compliance in a remote setup. You will collaborate with engineering and security teams to maintain controls, generate comprehensive reports, and ensure policy enforcement.

Qualifications

• 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.
• DoD 8140 compliant certification such as CompTIA Security+ is preferred.
• Active Secret Clearance is required.

Responsibilities

• Monitor Defender health, alerts, onboarding status, sensor health, policy enforcement and security configuration.
• Ensure NGAV solutions are running optimally and address alerts or issues.
• Maintain Attack Surface Reduction controls and report deviations to engineering.
• Verify real-time updates and threat intelligence from Microsoft cloud are applied.
• Integrate Microsoft Defender with Microsoft Sentinel and other SIEM tools; maintain central logging and dashboards.
• Ensure security across Windows, Linux and mobile devices; report platform-specific issues.
• Generate and review reports on security posture, incidents and compliance; monitor dashboards.
• Follow established procedures for maintaining Defender solutions and escalate anomalies.
• Ensure WDAC policies are correctly applied and functioning; report policy violations.

Skills

Threat hunting

Incident response

Communication

Problem-solving

Education

Bachelor’s degree in Computer Science or related field

Tools

Microsoft Defender for Endpoint

Microsoft Defender for Cloud

Microsoft Sentinel

Active Directory/Entra

Job description

Accelera Solutions is seeking a security-focused professional to manage Defender for Endpoint, Defender for Cloud, and SIEM integrations across Windows, Linux, and mobile endpoints.

The role emphasizes threat hunting, incident response, and DoD RMF/NIST compliance in a remote setup. You will collaborate with engineering and security teams to maintain controls, generate comprehensive reports, and ensure policy enforcement.