Senior Systems Administrator

Company overview:

Started by a former school district network admin in 2017, the business has grown almost entirely through referrals. AG Computer Services is a small IT shop: the owner, four technicians and a part-time office manager. Certification exams are paid for, and passing one comes with a raise.

The Senior Systems Administrator keeps our on-premises and Microsoft 365 environment patched, backed up and documented. Our IT Operations team supports about 120 servers across two data centers and Azure. Expect a mix of projects and tickets. Hybrid. You will need to be in Frisco at least two days per week.

In this role you will:

Work with security on vulnerability remediation and hardening. Own Microsoft 365 and Entra ID administration, including Exchange Online and conditional access. Automate routine tasks with PowerShell and Bash. Support file servers, print servers and storage arrays (NetApp, Pure Storage, Dell PowerStore). Manage VMware vSphere or Hyper-V clusters, including host patching and capacity. Keep server inventory, network diagrams and runbooks current. Run monthly patching cycles with WSUS, SCCM/MECM or Ansible. Set up monitoring in PRTG, Zabbix, SolarWinds or LogicMonitor.

Who you are:

5+ years of systems administration experience. PowerShell scripting. Willingness to work occasional evenings and weekends for maintenance. Strong Windows Server and Active Directory skills. Familiarity with backup and disaster recovery tools and practices. Microsoft 365 administration experience.

What we offer:

$51.50 to $62.00/hr

Free parking.

Interview process: a phone call, a meeting with the hiring manager, and a final conversation with the team.

Duration: 9 months. Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at AG Computer Services.