Infrastructure Administrator

Essential Duties and Responsibilities

• Administer, maintain, monitor, and troubleshoot Windows Server environments and related infrastructure.
• Manage Active Directory, Group Policy, DNS, DHCP, user authentication, and other core Microsoft services.
• Administer Microsoft 365, Entra ID, and other cloud-based services.
• Maintain virtual server environments and supporting compute, storage, and networking infrastructure.
• Monitor infrastructure performance, capacity, availability, and system health.
• Maintain LAN, WAN, VPN, firewall, wireless, and site-to-site network connectivity.
• Configure and troubleshoot switches, routers, firewalls, access points, VPN connections, and related network equipment.
• Support connectivity between corporate offices, data centers, cloud environments, and remote business locations.
• Administer server and infrastructure backup systems and regularly verify successful backups.
• Participate in disaster recovery testing, documentation, and recovery procedures.
• Maintain system patching, firmware updates, operating system updates, and infrastructure lifecycle management.
• Monitor infrastructure alerts and proactively address potential reliability or security issues.
• Troubleshoot escalated incidents involving servers, networking, authentication, applications, connectivity, and infrastructure.
• Work with vendors and service providers to troubleshoot telecommunications, networking, hardware, software, and infrastructure issues.
• Participate in the planning and implementation of infrastructure upgrades, migrations, deployments, and technology projects.
• Support new locations, relocations, acquisitions, integrations, and technology installations as required.
• Maintain accurate documentation of infrastructure configurations, network diagrams, systems, procedures, credentials, and technology standards.
• Identify aging or unsupported technology and provide recommendations for replacement or improvement.
• Performs other duties as assigned by IT management.
• Participate in infrastructure maintenance outside normal business hours when necessary.

Infrastructure Responsibilities

The Infrastructure Administrator may support technologies including

• Microsoft Windows Server
• Active Directory and Group Policy
• Microsoft 365
• Microsoft Entra ID
• DNS and DHCP
• Virtualization platforms
• Server and storage infrastructure
• Firewalls and VPN technologies
• LAN/WAN networking
• Managed switches and wireless networks
• SD-WAN technologies
• Backup and disaster recovery platforms
• Endpoint protection and EDR solutions
• Infrastructure monitoring platforms
• Remote access technologies
• Cloud and SaaS applications
• Network security technologies
• UPS and supporting data center equipment

Minimum Qualifications

• 3+ years of professional experience administering IT infrastructure, systems, or networks.
• Strong working knowledge of Microsoft Windows Server environments.
• Experience administering Active Directory, Group Policy, DNS, and DHCP.
• Experience with Microsoft 365 and cloud identity technologies.
• Working knowledge of networking concepts including TCP/IP, VLANs, routing, switching, DNS, DHCP, VPNs, and firewalls.
• Experience troubleshooting server, network, and infrastructure-related issues.
• Experience working with virtualization technologies.
• Experience with backup and disaster recovery technologies.
• Ability to independently diagnose and resolve complex technical problems.
• Ability to document technical configurations and procedures clearly.
• Strong organizational and time-management skills.
• Strong written and verbal communication skills.
• Ability to communicate technical information to both technical and non-technical personnel.
• Ability to manage multiple priorities in a fast-paced operational environment.

Preferred Qualifications

• 5+ years of infrastructure, systems administration, or network administration experience.
• Experience supporting a multi-site or geographically distributed organization.
• Experience supporting retail, convenience store, hospitality, restaurant, or other 24/7 operational environments.
• Experience with enterprise firewall and SD-WAN technologies.
• Experience with hyperconverged or enterprise virtualization infrastructure.
• Experience with infrastructure monitoring and automation tools.
• Experience supporting cloud and hybrid infrastructure environments.
• Experience with PowerShell or other scripting/automation technologies.
• Experience participating in disaster recovery or business continuity exercises.
• Familiarity with PCI DSS or other security/compliance frameworks.
• Microsoft, Cisco, CompTIA, Fortinet, VMware, Nutanix, or comparable industry certifications.

Knowledge, Skills, and Abilities

Successful candidates should demonstrate

• Strong technical troubleshooting and analytical skills.
• A proactive approach to infrastructure monitoring and maintenance.
• Ability to recognize potential problems before they result in outages.
• Strong understanding of infrastructure dependencies and business impact.
• Ability to prioritize incidents based on severity and operational impact.
• Ability to work independently while collaborating effectively with other IT team members.
• Strong attention to detail and documentation.
• Ability to remain effective during outages or high-priority incidents.
• Customer-service-oriented approach when working with employees and business stakeholders.
• Ability to coordinate effectively with third-party vendors and technology partners.

Physical and Availability Requirements

• Ability to occasionally lift and move computer, network, or server equipment weighing up to approximately 50 pounds.
• Ability to work in server rooms, network closets, offices, and remote business locations as required.
• Ability to travel to company locations when necessary.
• Ability to perform scheduled maintenance outside normal business hours when required.
• Ability to participate in after-hours escalation or on-call support as assigned.