Microsoft System Administrator - Mid

The Microsoft System Administrator-Mid provides administration and operational support for Microsoft platforms that are directly in scope for the SEC ISS contract, including Microsoft 365 GCC/GCC G5 and Microsoft Azure services. This role maintains secure, reliable, and compliant service delivery across Windows Server, Active Directory/Azure Active Directory, Exchange Online, SharePoint Online, and Teams environments. The position delivers Tier 1/2/3 incident, request, and maintenance support to sustain SEC collaboration and enterprise productivity services through proactive monitoring and system upkeep. The administrator also supports Teams-based conferencing, Teams/Webex interoperability, and live streaming operations for mission-critical events while coordinating with ISS teams to meet SLA and operational objectives. PRIMARY RESPONSIBILITIES - Microsoft Platform Administration. - Administer and maintain Windows Server, Active Directory, Group Policy, and Microsoft 365 GCC services in accordance with SEC operational standards. - Provide Tier 1/2/3 operational support for Microsoft 365 GCC/GCC G5 collaboration and productivity services, including incident response, service requests, and escalation. - Manage user accounts, permissions, and security policies across Active Directory/Azure Active Directory, Exchange Online, SharePoint Online, and Teams. - Perform configuration, patching, and maintenance activities to preserve system stability, security posture, and service continuity. - May require participation in on-call or surge support activities depending on operational needs. Azure and Identity Operations - Configure and maintain Azure resources, including virtual machines, storage accounts, and virtual networking components. - Administer Azure Active Directory identity services and access controls to support compliance and system integrity. - Monitor Azure health, availability, and performance, and implement improvements for reliability and compliance. - Support implementation and enforcement of security policies and standards across Microsoft and Azure environments. Collaboration, Messaging, and Video Services - Support day-to-day operations for Exchange Online, SharePoint Online, Teams, and related Microsoft collaboration services. - Support Teams Live Events, enterprise webcasts, conference services, and Teams/Webex interoperability scenarios to ensure reliable video/audio delivery and rapid issue resolution. - Coordinate AV/VTC and collaboration support with cross-functional ISS teams and external vendors for high-visibility meetings and broadcasts. - Communicate service status, planned changes, and restoration updates to stakeholders and end users. Monitoring, Automation, and Service Improvement - Develop and maintain PowerShell automation scripts for recurring administration, maintenance, and reporting tasks. - Perform proactive monitoring, alert triage, and trend analysis to reduce outages and minimize user impact. - Troubleshoot and resolve incidents affecting messaging, collaboration tools, and enterprise Microsoft applications; escalate complex issues as needed. - Maintain SOPs, runbooks, and technical documentation, and support continuous improvement initiatives aligned to SLA performance, automation goals, and secure operations expectations. REQUIRED QUALIFICATIONS

• This position is restricted to U.S. citizens only. Applicants must not hold dual citizenship with any other country to be eligible for work under this contract.
• The ability to obtain and maintain SEC Public Trust (or higher if required).
• Bachelor's degree in a relevant field (e.g., Information Technology, Computer Science, Engineering).
• 4+ years of experience in system administration with a focus on Microsoft technologies.
• Strong experience administering Windows Server, Active Directory, Group Policy, and Microsoft 365 environments.
• Demonstrated experience supporting Exchange Online, SharePoint Online, and Microsoft Teams in an enterprise environment.
• Hands-on experience supporting Azure services, including Azure Active Directory, virtual machines, storage, and networking.
• Experience supporting Microsoft Teams conferencing and video streaming operations for enterprise events. Windows Server administration
• Active Directory/Azure Active Directory and Group Policy management
• Microsoft 365 administration (Exchange Online, SharePoint Online, Teams)
• Microsoft Azure administration (virtual machines, storage, networking)
• PowerShell scripting and task automation
• Monitoring, incident troubleshooting, and root-cause analysis
• Security policy enforcement and permissions management
• Teams conferencing, Webex interoperability support, and live streaming operations

PREFERRED QUALIFICATIONS

• Experience supporting Microsoft 365 GCC G5 environments in a federal or similarly regulated organization.
• Experience implementing Entra ID Governance, Conditional Access, PIM, and lifecycle access reviews at enterprise scale.
• Experience with Azure Monitor, Log Analytics, and Application Insights for operational visibility and performance optimization.
• Experience with ITIL-aligned incident/problem management and ServiceNow-based service operations.
• Experience supporting high-visibility live collaboration events (e.g., town halls, executive briefings, commission-style meetings).
• Microsoft Certified: Azure Administrator Associate (AZ-104)
• Microsoft 365 Certified: Administrator Expert (MS-102)
• ITIL 4 Foundation

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