Infrastructure Administrator II

Infrastructure Administrator II# Elevate Your Career Journey## Infrastructure Administrator IIApply:
Viejas Casino:
Full time:
Posted Today:
JR100963

Job Summary The Infrastructure Administrator II independently administers, configures, troubleshoots, and improves the organization’s infrastructure environment. This role combines system administration, network administration, Microsoft 365 / Office 365 administration, Azure-connected services, identity administration, monitoring, patching, documentation, and project execution. This position is intended for an experienced infrastructure professional who can independently resolve routine and moderately complex issues, own assigned systems or services, lead small infrastructure projects, and contribute to hybrid cloud adoption while maintaining strong hands-on support for on-premises operations.

The role supports a casino environment where uptime, secure access, vendor coordination, and careful change control are essential.

Job Description The Infrastructure Administrator II independently administers, configures, troubleshoots, and improves the organization’s infrastructure environment. This role combines system administration, network administration, Microsoft 365 / Office 365 administration, Azure-connected services, identity administration, monitoring, patching, documentation, and project execution. This position is intended for an experienced infrastructure professional who can independently resolve routine and moderately complex issues, own assigned systems or services, lead small infrastructure projects, and contribute to hybrid cloud adoption while maintaining strong hands-on support for on-premises operations.

The role supports a casino environment where uptime, secure access, vendor coordination, and careful change control are essential.
** CORE SCOPE OF POSITION*
* • Administer and maintain on-premises infrastructure, including physical servers, virtual servers, storage, backups, network equipment, wireless systems, VPN services, and core IT platforms.
• Configure, manage, and troubleshoot Windows Server, SQL Server, Active Directory, Group Policy, DNS, DHCP, file services, print services, certificate services, permissions, and identity-related systems.
• Administer Microsoft 365 / Office 365 services, including Exchange Online, Teams, One Drive, SharePoint, licensing, security settings, mailbox administration, distribution groups, shared mailboxes, retention settings, and support escalations.
• Support Azure and Microsoft Entra , including user and group administration, MFA, conditional access support, enterprise applications, device identity, hybrid identity, synchronization health, and access-related troubleshooting.
• Support network infrastructure, including switches, routers, firewalls, VLANs, routing, VPNs, wireless systems, IP addressing, cabling standards, and connectivity troubleshooting.
• Manage virtualization tasks, including virtual machine provisioning, snapshots, host monitoring, resource allocation, capacity review, and issue escalation.
• Execute infrastructure maintenance activities, including patching, firmware updates, backup validation, monitoring response, vulnerability remediation, configuration reviews, and system health checks.
• Own small to medium infrastructure projects or defined work streams, including planning, technical implementation, testing, rollback planning, documentation, and handoff.
• Support casino operational systems by prioritizing uptime, rapid incident response, vendor coordination, and careful change execution in a 24/7 business environment.
• Review, update, resolve, and close tickets according to service expectations and escalation procedures.
• Develop and maintain documentation, including SOPs,…