IT Systems Administrator IV

Centurion is proud to be a leading provider of comprehensive healthcare services to correctional facilities, state hospitals, and community mental health centers nationwide.

We are currently seeking a full-time IT Systems Administrator IV to join our IT team in Sterling, VA.The IT Systems Administrator IV provides advanced infrastructure and operational support across a broad range of enterprise technologies, including Active Directory, Exchange, Microsoft Azure, VMware, networking, file and print services, corporate applications, and other critical IT systems. Serve as a senior technical resource responsible for diagnosing and resolving complex infrastructure issues, driving root-cause analysis, and implementing scalable, secure, and reliable solutions.

Apply advanced infrastructure tools, automation, and industry best practices to improve system performance, availability, and operational efficiency. Act as a senior escalation point for IT Operations, Engineering, Helpdesk, and Security teams, providing technical leadership, mentoring junior administrators, and ensuring the timely resolution of high-impact incidents and operational challenges.

Performs proactive daily monitoring of enterprise infrastructure, including network systems, physical and virtual servers, cloud resources, storage, appliances, backup systems, and other business-critical technologies. Identifies potential issues and takes corrective action to maintain system availability, performance, and reliability.

Provides advanced day-to-day administration and support of endpoints and enterprise infrastructure components, including servers, core infrastructure services, file storage, print services, virtualization platforms, backup systems, and related technologies.

Serves as a senior escalation point for Tier 3 and complex infrastructure incidents, taking ownership of advanced troubleshooting, root-cause analysis, remediation, and coordination with other IT teams and vendors as necessary.

Configures, maintains, tests, upgrades, and documents systems administration platforms and infrastructure technologies. Develops and maintains technical documentation, knowledge base articles, operating procedures, and troubleshooting documentation.

Bachelor’s degree in Information Technology, Computer Science, or a related field preferred; equivalent combination of advanced technical experience, education, and industry certifications will be considered.
7+ years of progressive experience in enterprise IT infrastructure and operations, with demonstrated experience supporting complex, highly available on-premises, hybrid, and cloud-based environments.

Preferred certifications include 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.

Advanced knowledge of the Microsoft technology stack, including Windows Server, Active Directory, Group Policy (GPO), DNS, DHCP, IIS, NTFS/DFS, and Power Shell, with demonstrated experience designing, administering, troubleshooting, and optimizing enterprise environments.

Advanced experience with Microsoft Azure and hybrid infrastructure, including Azure Virtual Machines, Microsoft Entra , VNets, NSGs, VPN/Express Route, Azure Storage, Azure Monitor, Log Analytics, Azure Backup, Azure Site Recovery, and administration through Power Shell and Azure CLI.Extensive experience supporting Microsoft 365 and hybrid Microsoft environments, including identity, authentication, SharePoint Online, Exchange-related services, and integrations between on-premises infrastructure and Microsoft cloud services.

Advanced experience with SCCM/MECM, including…