Skip to main content
Tallo logoTallo logo

Sr. Systems Administrator - Federal IT Support

Job

ASD Divisional Headquarters - 100

Washington, DC (In Person)

Full-Time

Posted 1 day ago (Updated 5 hours ago) • Actively hiring

Expires 6/29/2026

Apply for this opportunity

This job application is on an outside website. Be sure to review the job posting there to verify it's the same.

Review key factors to help you decide if the role fits your goals.
Pay Growth
?
out of 5
Not enough data
Not enough info to score pay or growth
Job Security
?
out of 5
Not enough data
Calculating job security score...
Total Score
52
out of 100
Average of individual scores

Were these scores useful?

Skill Insights

Compare your current skills to what this opportunity needs—we'll show you what you already have and what could strengthen your application.

Job Description

We are currently seeking an experienced senior-level IT infrastructure professional to support a small federal agency's enterprise IT environment in Washington, DC. This is a hands-on, production-support role requiring daily administration of hybrid on-premises and cloud infrastructure with minimal supervision from federal staff. The selected candidate will be the primary IT systems resource for the agency and is expected to operate independently, manage priorities, and deliver consistent results across a diverse technology stack. The environment is a hybrid Microsoft-centric infrastructure built on Cisco networking, VMware virtualization, Microsoft Azure, and Microsoft 365 — integrated via Azure Arc and Microsoft Entra ID. The agency has fewer than 150 users and fewer than 50 servers, with remote users distributed nationally. Contingent Upon Contract Award What You'll Be Doing Day to Day Perform day-to-day administration of Windows Server 2016/2019/2022 and Linux server environments across on-premises and Microsoft Azure cloud infrastructure Administer Microsoft Entra ID and on-premises Active Directory including conditional access policies, MFA integration, GPO management, user and group provisioning, and identity lifecycle operations Administer Microsoft 365 tenant including Exchange Online, SharePoint, and Teams; manage configurations, licensing, and integration with on-premises Active Directory Install, configure, test, and maintain servers, storage arrays, and related networking equipment in both on-premises and cloud environments Implement and manage patch management operations across Windows Server, Linux, and network infrastructure; apply OS updates and firmware on servers, storage systems, and Cisco networking equipment Administer endpoint management platforms (SCCM, Intune) for software deployment, device configuration, and compliance management across workstations and mobile devices Configure and maintain server hardening baselines; administer monitoring and alerting tools to maintain infrastructure health visibility across all critical IT resources Administer VMware virtualization infrastructure and Azure Arc-integrated hybrid cloud environment Manage SAN/NAS storage infrastructure including provisioning, capacity planning, and performance monitoring Design and maintain disaster recovery strategies; plan and execute DR exercises including failover validation and backup restoration testing Administer Cisco routing, switching, firewall, and VPN infrastructure supporting agency LAN and remote access Develop PowerShell scripts and automation workflows to streamline server provisioning, patch reporting, and recurring administrative operations Develop and maintain accurate systems documentation including SOPs, architecture diagrams, and configuration runbooks Evaluate current IT systems architecture and recommend corrective actions and operational improvements to agency leadership Apply knowledge of federal IT management principles including NIST guidelines and FISMA directives in day-to-day operations Participate in project team meetings and support integration of new systems with existing IT operations