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# Infrastructure Administrator (Tier 3 level)

- **Company:** Standards IT, LLC
- **Location:** Oklahoma City, OK, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Microsoft Azure, Backup Devices, VoIP, Cloud Computing, Cloud Storage, Cyber Security, Dynamic Host Configuration Protocol, Disaster Recovery, Domain Name System (DNS), Virtual Private Networks (VPN), Windows Servers, Cloud Services, Virtualization Technology, Windows Desktop, Wireless Networks, Firewalls (Computer Science), Microsoft InTune, Fortinet, 3-tier Architectures, Network Server, Server Operating Systems & Platforms
- **Published:** October 13, 2026
- **Apply:** https://www.thejobnetwork.com/job/32817816-16cb-4a3a-8163-2bf76606202f/infrastructure-administrator-tier-level

## About the Role

* 10+ years of progressive business IT experience, or an equivalent combination of experience, education, and certifications.
 * Advanced knowledge of Windows Server and Windows desktop operating systems.
 * Experience with Microsoft 365, Azure, Entra ID, Intune, Active Directory, Group Policy, DNS, and DHCP.
 * Strong networking knowledge, including firewalls, switching, wireless, VPNs, and TCP/IP troubleshooting.
 * Experience with infrastructure design, implementation, migrations, and project leadership.
 * Strong troubleshooting and root-cause analysis skills.
 * Excellent written, verbal, documentation, and client communication skills.
 * Ability to manage multiple issues and projects with strong attention to detail.
 * Ability to work independently and collaborate with clients, vendors, and team members.
 * Willingness to learn new technologies quickly.
 * Ability to travel locally to client locations as needed.

Preferred Experience:

Experience with the following or comparable solutions:

 * Fortinet and Ubiquiti networking and security appliances
 * Virtualized server environments
 * Automated backup and recovery
 * Cloud storage and backup solutions
 * Cloud-based VOIP communication systems
 * EDR and MDR platforms
 * Cybersecurity, compliance, and regulated environments
 * Business consulting in multi-client environments

Relevant Microsoft, Fortinet, networking, cloud, or security certifications are a plus but not required.

## Description

The Infrastructure Administrator is a technical, strategic, and client-facing member of Standards IT who supports multiple client environments and serves as a senior escalation resource across support tiers. The role administers, secures, and improves endpoints, servers, networks, cloud services, virtualization, backup, and unified communications systems. It also leads infrastructure projects, maintains technical standards and documentation, and works directly with clients to align technology with their business goals.

Roles and Responsibilities:

 * Troubleshoot complex issues, identify root causes, and resolve requests within contracted SLAs.
 * Design, deploy, and support endpoints, servers, storage, networks, virtualization platforms, and cloud services.
 * Administer Microsoft 365, Azure, Entra ID, Intune, and related identity and access services.
 * Configure and support firewalls, switches, wireless networks, and VPNs.
 * Support backup, disaster recovery, endpoint security, and monitoring solutions.
 * Design and support VoIP and unified communications systems.
 * Plan and lead deployments, migrations, upgrades, and remediation projects.
 * Develop, maintain, and test business continuity and disaster recovery plans.
 * Maintain client documentation and ensure environments meet Standards IT's technical and security standards.
 * Perform proactive maintenance and recommend improvements to security, reliability, and performance.
 * Meet with clients to review service performance, needs, projects, risks, and priorities.
 * Coordinate with clients, vendors, and team members, including communicating risks, delays, and escalations.