IT Systems Administrator IV (85491)

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 PowerShell, with demonstrated 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, and administration through PowerShell 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 operating system deployment, application deployment, patch management, vulnerability remediation, configuration management, compliance reporting, and troubleshooting complex endpoint and server deployment issues.
• Strong hands-on experience with enterprise virtualization, storage, and backup technologies, including VMware ESXi/vSphere, SAN infrastructure, and Veeam Backup & Replication. Experience supporting disaster recovery and business continuity solutions utilizing Azure Site Recovery and Azure Backup is highly desirable.
• Advanced understanding of enterprise networking, including TCP/IP, DNS, DHCP, routing, switching, VLANs, VPNs, wireless technologies, firewalls, and network troubleshooting. Experience with Cisco Meraki, Azure networking, ExpressRoute, and hybrid connectivity is preferred.
• Demonstrated ability to perform advanced infrastructure troubleshooting and root-cause analysis using tools such as Windows Event Viewer, application and system logs, PRTG, Wireshark, Azure Monitor, Log Analytics, PuTTY, Dell OpenManage, and other enterprise monitoring and diagnostic platforms.
• Strong experience with infrastructure automation and scripting, particularly PowerShell, including developing reusable scripts and automation for system administration, monitoring, deployment, configuration, and operational tasks. Experience with Python, Azure Automation Runbooks, Logic Apps, or similar automation technologies is highly desirable.
• Working knowledge of ITIL-based incident, problem, and change management processes, with demonstrated experience evaluating technical risk, documenting infrastructure changes, and supporting controlled production implementations.
• Experience supporting enterprise applications and platforms such as Citrix, SharePoint, Barracuda, Freshservice, and other business-critical systems, including troubleshooting integrations and dependencies across infrastructure platforms.
• Demonstrated experience serving as a senior escalation point for complex infrastructure and production issues, including coordinating troubleshooting efforts across IT Operations, Engineering, Security, vendors, and application teams.
• Ability to lead technical initiatives and infrastructure improvements, including system upgrades, migrations, lifecycle management, cloud adoption, vulnerability remediation, disaster recovery, performance optimization, and technology standardization.
• Demonstrated ability to mentor and provide technical guidance to junior and mid-level Systems Administrators, establish technical standards, document procedures, share knowledge, and promote infrastructure best practices across the IT organization.
• Strong understanding of security principles and infrastructure hardening, including identity and access management, least privilege, vulnerability remediation, patching, logging, system configuration, and collaboration with Security teams to remediate identified risks.
• Experience supporting or integrating with EHR/EMR and other healthcare-related systems is a plus, particularly within highly regulated or distributed healthcare environments.