IT Systems Administrator IV

Centurion Health • Sterling, VA

2d • Onsite

About The Position

Centurion is seeking a full-time IT Systems Administrator IV to join its IT team at the corporate office in Sterling, Virginia. Centurion provides comprehensive healthcare services to correctional facilities, state hospitals, and community mental health centers nationwide.

The role provides advanced infrastructure and operational support across enterprise technologies, including Active Directory, Exchange, Microsoft Azure, VMware, networking, file and print services, corporate applications, and other critical IT systems. The administrator serves as a senior technical resource for complex infrastructure issues, leads root-cause analysis, and implements scalable, secure, and reliable solutions. The role applies advanced tools, automation, and industry best practices to improve system performance, availability, and operational efficiency.

This position is a senior escalation point for IT Operations, Engineering, Helpdesk, and Security teams. It provides technical leadership and mentorship to other administrators and supports timely resolution of high-impact incidents. Responsibilities also include proactive infrastructure monitoring; advanced administration and support of endpoints and infrastructure; configuration, maintenance, testing, upgrades, and documentation of systems; and coordination with IT teams and vendors as needed.

Requirements

• At least 7 years of progressive experience in enterprise IT infrastructure and operations, supporting complex, highly available on-premises, hybrid, and cloud-based environments.
• Bachelor’s degree in Information Technology, Computer Science, or a related field preferred; equivalent advanced technical experience, education, and industry certifications will be considered.
• Advanced knowledge of Windows Server, Active Directory, Group Policy, DNS, DHCP, IIS, NTFS/DFS, and PowerShell, including experience designing, administering, troubleshooting, and optimizing enterprise environments.
• Advanced experience with Microsoft Azure and hybrid infrastructure, including Azure Virtual Machines, Microsoft Entra ID, VNets, NSGs, VPN/ExpressRoute, Azure Storage, Azure Monitor, Log Analytics, Azure Backup, Azure Site Recovery, PowerShell, and Azure CLI.
• Extensive experience supporting Microsoft 365 and hybrid Microsoft environments, including identity, authentication, SharePoint Online, Exchange-related services, and integration between on-premises infrastructure and Microsoft cloud services.
• Advanced experience with SCCM/MECM, including operating system and application deployment, patch management, vulnerability remediation, configuration management, compliance reporting, and troubleshooting complex endpoint and server deployment issues.
• Hands-on experience with enterprise virtualization, storage, and backup technologies, including VMware ESXi/vSphere, SAN infrastructure, and Veeam Backup & Replication.
• Advanced understanding of enterprise networking, including TCP/IP, DNS, DHCP, routing, switching, VLANs, VPNs, wireless technologies, firewalls, and network troubleshooting.
• Ability to perform advanced infrastructure troubleshooting and root-cause analysis using enterprise monitoring and diagnostic tools.
• Strong experience with infrastructure automation and scripting, particularly PowerShell, including reusable scripts and automation for administration, monitoring, deployment, configuration, and operational tasks.
• Working knowledge of ITIL-based incident, problem, and change management processes.
• Experience supporting enterprise applications and platforms, including troubleshooting integrations and dependencies across infrastructure platforms.
• Experience serving as a senior escalation point for complex infrastructure and production issues and coordinating troubleshooting across IT Operations, Engineering, Security, vendors, and application teams.
• Ability to mentor junior and mid-level Systems Administrators, establish technical standards, document procedures, and provide technical guidance.
• Strong understanding of security principles and infrastructure hardening, including identity and access management, least privilege, vulnerability remediation, patching, logging, and system configuration.

Nice To Haves

• Microsoft Azure Administrator Associate (AZ-104), Microsoft Azure Solutions Architect Expert, VMware VCP, Cisco CCNA, CompTIA Security+, or comparable advanced infrastructure, cloud, networking, and security certifications.
• Experience supporting disaster recovery and business continuity solutions using Azure Site Recovery and Azure Backup.
• Experience with Cisco Meraki, Azure networking, ExpressRoute, and hybrid connectivity.
• Experience with Python, Azure Automation Runbooks, Logic Apps, or similar automation technologies.
• Experience supporting enterprise applications such as Citrix, SharePoint, Barracuda, and Freshservice.
• Experience supporting or integrating with EHR/EMR and other healthcare-related systems, particularly in highly regulated or distributed healthcare environments.

Responsibilities

• Proactively monitor enterprise infrastructure, including network systems, physical and virtual servers, cloud resources, storage, appliances, backup systems, and other business-critical technologies; identify potential issues and take corrective action.
• Administer and support endpoints and enterprise infrastructure components, including servers, core infrastructure services, file storage, print services, virtualization platforms, backup systems, and related technologies.
• Serve as a senior escalation point for Tier 3 and complex infrastructure incidents; lead advanced troubleshooting, root-cause analysis, remediation, and coordination with IT teams and vendors as needed.
• Configure, maintain, test, upgrade, and document systems administration platforms and infrastructure technologies.
• Develop and maintain technical documentation, knowledge base articles, operating procedures, and troubleshooting documentation.
• Provide technical leadership and mentorship to junior and mid-level administrators and share infrastructure best practices across the IT organization.
• Lead technical initiatives and infrastructure improvements, including upgrades, migrations, lifecycle management, cloud adoption, vulnerability remediation, disaster recovery, performance optimization, and technology standardization.
• Evaluate technical risk, document infrastructure changes, and support controlled production implementations.
• Collaborate with Security teams to remediate identified infrastructure risks.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior