Senior Windows & Azure Administrator - TS/SCI On-Site

Stable Growing In-Demand Technology Service Provider to Businesses and Consumers; Washington (District of Columbia); On-site; USD 120,000 - 180,000; Full time

Job summary

Telecom Systems Provider to Businesses and Consumers in Indiana seeks a Senior Windows Systems Administrator to support a secure, mission‑critical environment. The role is hands‑on, fast‑moving, and requires deep expertise across Windows Server, AD, Azure AD, M365, and security controls.

Active TS/SCI clearance is mandatory to be considered. The candidate will administer Windows Server environments, manage identity and access, configure VDI platforms, and ensure DoD/NIST compliance across

Qualifications

• Active TS/SCI clearance is mandatory.
• Experience administering Windows Server 2016/2019/2022.
• Expertise in AD, DNS, DHCP, and Group Policy management.

Responsibilities

• Administer, maintain, and optimize Windows Server environments (2016/2019/2022) across multiple secure networks.
• Manage Active Directory, Entra ID (Azure AD), Group Policy, DNS, DHCP, and identity lifecycle operations.
• Support and enhance Microsoft 365, including Exchange Online, Teams, SharePoint, and security/compliance features.
• Configure and maintain Azure services, including VMs, VDI, storage, networking, and identity integrations.
• Oversee WLAN/VLAN configurations, network segmentation, and secure connectivity across classified environments.
• Manage SAN/NAS storage, backup systems, replication, and disaster recovery procedures.
• Support VDI platforms (Azure Virtual Desktop, VMware Horizon, Citrix, or similar).
• Implement and maintain Intune for endpoint management, compliance, and secure device configuration.
• Troubleshoot complex issues across servers, networks, virtualization, and cloud infrastructure.
• Maintain and update Privileged Job Instructions (PJI) or equivalent secure-environment operational documentation.
• Ensure compliance with DoD, NIST, and agency cybersecurity requirements.

Skills

Windows Server

Active Directory

Azure AD (Entra ID)

Intune

VDI

Security

Tools

Azure Virtual Desktop

VMware Horizon

Citrix

Microsoft 365

Job description

Telecom Systems Provider to Businesses and Consumers in Indiana seeks a Senior Windows Systems Administrator to support a secure, mission‑critical environment. The role is hands‑on, fast‑moving, and requires deep expertise across Windows Server, AD, Azure AD, M365, and security controls.

Active TS/SCI clearance is mandatory to be considered. The candidate will administer Windows Server environments, manage identity and access, configure VDI platforms, and ensure DoD/NIST compliance across