Sr Systems Administrator

Edge Communications • Plano, TX

7d • Onsite

About The Position

A senior, hands-on generalist responsible for building, operating, and troubleshooting the systems supporting Edge’s managed services customers. The role works across Linux, Windows, Active Directory, VMware, and Proxmox environments, owns issues from initial alert through root-cause analysis, and serves as an escalation point during production incidents. This role supports multiple technologies and customer environments, including migrations, deployments, break/fix work, and after-hours emergencies.

Requirements

• 10+ years of hands-on systems administration experience in production environments.
• Extensive knowledge of Enterprise Linux/Debian Linux.
• Extensive knowledge of Windows Server and Active Directory, including Group Policy, DNS, and DHCP.
• Extensive experience with VMware vSphere/ESXi and Proxmox VE virtualization environments.
• Strong understanding of storage technologies (SAN, NAS, iSCSI) and server hardware.
• Strong understanding of TCP/IP networking, VLANs, and firewalls.
• Scripting experience with PowerShell and Bash.
• Proven experience recovering from outages involving failed hardware, corrupted file systems, broken domains, and failed upgrades.
• Comfort working across many technologies at once.

Nice To Haves

• Python scripting experience.
• Prior experience in an MSP or multi-customer environment.
• Industry certifications such as VMware VCP, RHCSA/RHCE, or Microsoft credentials.

Responsibilities

• Serve as an escalation point for L1/L2 teams on server, virtualization, and directory-related issues.
• Install, configure, and administer Enterprise Linux/Debian Linux and Windows Server systems.
• Build, manage, and troubleshoot VMware vSphere/ESXi and Proxmox VE clusters, including storage, networking, and high availability.
• Install, configure, and administer Windows Active Directory, including multi-domain and multi-forest environments, DNS, DHCP, Group Policy, and trusts.
• Apply patches, perform upgrades, and handle lifecycle maintenance across customer environments.
• Troubleshoot alerts from commercial, open-source, and locally developed monitoring tools.
• Analyze and recover from system failures while ensuring file-system consistency and integrity.
• Respond to after-hours emergencies and system-down escalations; work maintenance windows as they arise.
• Perform MSP customer projects, including migrations, deployments, and break/fix work.
• Create and maintain internal documentation, runbooks, and knowledge base articles.
• Automate repetitive tasks using PowerShell, Bash, or Python.
• Support backup and disaster recovery operations, including test restores.
• Mentor junior team members and share knowledge across the team.
• Stay current with emerging technologies and industry best practices.

Benefits

• Competitive salary.
• Monthly allowance toward premiums for individual medical insurance the employee enrolls in.
• Group dental and vision coverage.
• 401(k) retirement plan.
• Paid time off (PTO).
• Short- and long-term disability coverage.
• Life insurance.
• Opportunities for professional growth.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed