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# Sr Systems Administrator

- **Company:** Progressive IT
- **Location:** Denton, TX, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Microsoft Azure, CompTIA Security+, Dynamic Host Configuration Protocol, Linux, Disaster Recovery, Domain Name System (DNS), VMware ESX Servers, Monitoring of Systems, Hyper-V, Network Troubleshooting, Windows Servers, Windows PowerShell, Red Hat Enterprise Linux, Cloud Services, TCP/IP, Virtual Local Area Networks, Virtualization Technology, VMware Virtualization, VMware VSphere, Software Vulnerability Management, Scripting, Software Troubleshooting, Firewalls (Computer Science), Information Technology, Performance Monitor, Patch Management, Vmware
- **Published:** November 4, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=fda56e9cfe7348f1

## About the Role

* 7+ years of systems administration or infrastructure engineering experience.
 * Advanced Windows Server administration, including Active Directory, Group Policy, DNS, DHCP, and file services.
 * Strong experience with VMware vSphere/ESXi or Hyper-V virtualization.
 * Working knowledge of Linux administration in mixed environments.
 * Understanding of TCP/IP, VLANs, firewalls, certificates, and network troubleshooting.
 * Experience with server hardening, patch management, vulnerability remediation, privileged access, and cybersecurity best practices.
 * Proficiency in PowerShell scripting and automation.
 * Experience with infrastructure monitoring, alerting, capacity planning, performance troubleshooting, and root cause analysis.
 * Experience leading server migrations, infrastructure upgrades, and hardware refresh projects.
 * Ability to develop technical documentation, system diagrams, SOPs, build standards, and disaster recovery procedures.
 * Strong communication, collaboration, and mentoring skills, including working with networking, security, engineering, and business teams., * Bachelor's degree in IT, Computer Science, or a related field; equivalent experience considered.
 * Certifications such as Microsoft Windows Server Hybrid Administrator, Azure Administrator, VMware VCP, Red Hat RHCSA/RHCE, or CompTIA Security+.
 * Familiarity with ITIL, NIST, CIS, and CMMC frameworks.

## Description

Seeking an experienced Systems Administrator to manage and support enterprise Windows/Linux infrastructure, virtualization, security, and cloud services. This role involves troubleshooting complex issues, maintaining secure and reliable systems, and supporting infrastructure upgrades and automation initiatives., * Administer Windows Server environments, VMware virtual machines, Active Directory, Group Policy, and related services.

 * Deploy and manage CrowdStrike endpoint security agents.
 * Perform server patching, security hardening, vulnerability remediation, and performance monitoring.
 * Troubleshoot infrastructure issues, conduct root cause analysis, and serve as a senior technical escalation resource.
 * Automate administrative tasks using PowerShell and other scripting tools.
 * Support infrastructure migrations, upgrades, storage, backup, and disaster recovery initiatives.
 * Maintain technical documentation and collaborate with infrastructure and cybersecurity teams.