Systems Admin - Windows Admin

Windows Desktop / Server Administrator

The Windows Desktop / Server Administrator will provide Tier III IT operations support across the Office of Information Management (OIM) and SC mission systems. This role is responsible for operating and maintaining Windows-based servers, desktops, and hybrid infrastructure, ensuring service availability, performance, security, and compliance with DOE directives and federal IT standards. The ideal candidate will have deep expertise in Active Directory, Windows Server, endpoint management, and virtualization technologies, while also supporting cloud integrations and evolving enterprise service delivery models.

Responsibilities :

• Administer and maintain Windows Server and Desktop environments (2016 / 2019 / 2022), including domain controllers, file servers, print servers, and application servers.
• Manage Active Directory (AD), including user / group management, OU structure, GPOs, DNS, DHCP, and replication.
• Provide Tier III support for Windows desktop environments, including OS deployment, patching, and troubleshooting.
• Support endpoint devices (Windows, macOS, and Linux where required), ensuring compliance with security baselines.
• Implement and maintain Microsoft Endpoint Configuration Manager (SCCM / Intune) for software distribution, patch management, and endpoint compliance.
• Operate and monitor physical and virtual infrastructure, including Hyper-V and VMware platforms.
• Support backup and restore processes in line with Recovery Time Objectives (RTOs) and Recovery Point Objectives (RPOs).
• Maintain documentation of server configurations, rack layouts, cabling, power requirements, and capacity planning.
• Provide hands-on support for network and server hardware in communication closets and data centers.
• Continuously monitor Windows servers, desktops, and virtualization platforms for availability, health, and performance.
• Detect and resolve bottlenecks, outages, and performance issues in line with SLAs.
• Use approved monitoring tools (e.g., SCOM, SolarWinds, Azure Monitor) and recommend enhancements to improve operational effectiveness.
• Track and report on capacity utilization, resource consumption, and licensing compliance.
• Maintain operational records such as maintenance logs, backup validation history, and asset inventories.
• Maintain and update the Configuration Management Database (CMDB) to track Windows servers, desktops, and dependencies.
• Submit all changes via the OIM-approved change management system in accordance with the Change Control Review (CCR) process.
• Evaluate proposed changes for technical and cybersecurity risk, ensuring compliance with secure configuration baselines.
• Perform and document system patching, OS updates, and application upgrades in accordance with OIM policy.

Minimum Qualifications :

Other Job Specific Skills :