Senior Microsoft 365 & SharePoint Administrator — Hybrid

Empower AI; United States; Hybrid; USD 79,000 - 123,000; Full time

Job summary

Empower AI seeks a Microsoft 365 / SharePoint Administrator to manage and sustain the enterprise collaboration environment for a Department of War agency, serving more than 13,000 users across NIPRNet, SIPRNet, and JWICS enclaves with DISA guidelines.

This is a salaried, FLSA-exempt role based in Quantico, VA (hybrid with remote eligibility) with up to 10% travel. The position requires DoD experience and security credentials.

Qualifications

• Bachelor's degree and a minimum of 4 years related experience (an additional 4 years may be substituted for the degree).
• Must be a U.S. Citizen.
• Must have an Active Secret Clearance (favorably adjudicated T3/T3R).
• Must be willing and able to obtain TS/SCI eligibility after start, if required by mission needs.
• Must be within investigation scope and/or currently enrolled in Continuous Evaluation / Continuous Vetting.
• Must maintain a current DoD 8570/8140 IAT Level II baseline certification (e.g., Security+ CE, CySA+, GSEC, SSCP, or CCNA-Security).
• Minimum of 3 years of experience administering Windows endpoint environments in an enterprise of 5,000+ devices.
• Hands-on experience with MECM/SCCM and/or Intune for patching, software deployment, imaging, and compliance reporting.
• Strong knowledge of Windows 10/11, Active Directory, Group Policy, PowerShell scripting, and Windows Server fundamentals.
• Experience building and maintaining STIG-compliant OS images and applying DISA STIGs using STIG Viewer and SCAP tools.
• Experience with vulnerability management tools (e.g., ACAS/Nessus) and remediation tracking through POA&Ms.
• Experience executing changes through a formal Change Management process and working in scheduled maintenance windows; ability to participate in an after-hours on-call rotation.
• Strong analytical, documentation, and communication skills.

Responsibilities

• Administer the Microsoft 365 tenant and services (SharePoint Online site provisioning, permissions, hub/site architecture; Teams policies and governance; Exchange Online; OneDrive; Purview retention and compliance settings) in compliance with DISA STIGs and DoD guidelines.
• Proactively monitor collaboration service health and performance, implement preventive maintenance, analyze and resolve Tier II/III platform incidents to root cause, and coordinate escalated technical issues with Microsoft and other vendors.
• Administer Zoom.gov and Adobe Connect accounts, security settings, and integrations, and govern Power Platform environments, connectors, and data loss prevention policies for developed solutions.
• Execute tenant changes and Microsoft 365 roadmap feature rollouts through formal Change Management, maintain configuration documentation, and provide RMF control evidence and availability data for the collaboration environment.
• Operate and maintain the enterprise endpoint management platform (e.g., MECM/SCCM, Intune) including site health, distribution points, collections, boundaries, client health, and reporting across multiple security enclaves.
• Package, test, and deploy operating system and third‑party security patches and updates in strict adherence to CAT I, II, and III timeframes and compliance AQLs, and track and report patch compliance for the Customer Support Metrics Dashboard.
• Package and deploy new applications and software removals, maintain the application catalog, and automate provisioning for image deployment across the enterprise.
• Build, test, and maintain hardened operating system images that are 100% compliant with the latest applicable DISA STIGs and validated against agency cybersecurity requirements prior to deployment.

Skills

U.S. Citizenship

Active Secret Clearance

DoD 8570/8140 IAT II

Windows Endpoint Administration

MECM/SCCM / Intune

Education

Bachelor's degree

Tools

MECM/SCCM

Intune

PowerShell

STIG Viewer / SCAP tools

Job description

Empower AI seeks a Microsoft 365 / SharePoint Administrator to manage and sustain the enterprise collaboration environment for a Department of War agency, serving more than 13,000 users across NIPRNet, SIPRNet, and JWICS enclaves with DISA guidelines.

This is a salaried, FLSA-exempt role based in Quantico, VA (hybrid with remote eligibility) with up to 10% travel. The position requires DoD experience and security credentials.