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# Systems Administrator

- **Company:** Addison Group
- **Location:** Oklahoma City, OK, United States
- **Salary:** $65,000.0 - $90,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Apple Mac Systems, Microsoft Online Services, Linux, Disaster Recovery, Domain Name System (DNS), Multi-Factor Authentication, Network Architecture, Network Administration, Performance Tuning, VMware Infrastructure, Virtual Machines, VMware VSphere, Network Routers, Firewalls (Computer Science), Vcenter, Wireless Technologies, Server Operating Systems & Platforms, User Accounts, Vmware
- **Published:** September 30, 2026
- **Apply:** https://www.juju.com/job/16_ab43483e2

## About the Role

* Hands-on experience with virtual machines and virtualized server environments
 * Experience administering Microsoft 365 in a production environment
 * Working knowledge of Linux and macOS alongside Windows systems
 * Strong background in network administration and troubleshooting
 * Experience supporting small to mid-sized environments or outsourced IT models
 * Ability to take initiative, prioritize tasks, and operate independently in a small-team setting
 * Strong problem-solving, communication, and documentation skills

## Description

We're looking for a well-rounded, hands-on Systems Administrator to manage our network and virtual infrastructure while providing full-spectrum IT support. In this small, collaborative IT team, you'll support a wide range of systems and technologies, handling everything from Tier 1 help desk tickets to advanced VMware administration, Microsoft 365 support, and disaster recovery.

This role is ideal for someone who has supported small to medium-sized businesses or has worked in an outsourced IT environment, where versatility and exposure to diverse platforms are part of the day-to-day role., * Administer VMware, vSphere, and vCenter environments, including virtual machine provisioning, patching, and performance optimization

 * Manage and support Microsoft 365 services, including user accounts, access controls, and security features
 * Support and maintain Windows, Linux, and macOS systems across server and endpoint environments
 * Manage network infrastructure including switches, routers, firewalls, and wireless systems to ensure uptime and reliability
 * Oversee backup, recovery, and disaster recovery processes to protect critical business data
 * Maintain endpoint security, multi-factor authentication, DNS-level protections, and system hardening
 * Provide Tier 1-3 support for hardware, software, and system issues across the organization
 * Document systems, configurations, and procedures while identifying opportunities for process improvement
 * Balance daily support needs with long-term infrastructure stability and optimization efforts


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