Verinext

Senior IT Systems Administrator – Contract, Part Time

Verinext

contract

Posted on:

Location Type: Hybrid

Location: Mesa • Arizona • United States

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Job Level

Senior

Tech Stack

AzureCloudDNSFirewalls

About the role

  • Administer and support Windows Server and Windows 10/11 endpoint environments.
  • Manage Active Directory, Azure Active Directory (Entra ID), Group Policy, DNS, DHCP, and identity lifecycle management.
  • Maintain hybrid and cloud-based infrastructure hosted in Microsoft Azure.
  • Perform system monitoring, patching, upgrades, and performance tuning across enterprise systems.
  • Implement and maintain backup, disaster recovery, and business continuity solutions.
  • Administer Microsoft 365 services including Exchange Online, Teams, SharePoint, and OneDrive.
  • Manage Azure resources such as virtual machines, storage accounts, networking, and security policies.
  • Support hybrid identity integrations including Azure AD Connect and conditional access.
  • Assist with automation using PowerShell and Azure tools where applicable.
  • Support Windows Endpoint Lifecycle including provisioning, hardening, and ongoing maintenance.
  • Administer endpoint management solutions such as Microsoft Intune and/or Endpoint Manager.
  • Enforce security and compliance policies across corporate and BYOD devices.
  • Provide Tier 3 escalation support for complex endpoint issues.
  • Configure and maintain Fortinet/FortiGate firewalls, VPN connectivity, and network security policies.
  • Collaborate with security teams to implement MFA, endpoint protection, and identity-based controls.
  • Monitor system logs, respond to incidents, and assist with remediation efforts.
  • Ensure adherence to organizational security and compliance standards.
  • Provide advanced troubleshooting and root-cause analysis for infrastructure issues.
  • Create and maintain technical documentation, runbooks, and standard operating procedures.
  • Partner with IT leadership on infrastructure planning, upgrades, and continuous improvement initiatives.
  • Mentor junior administrators and provide technical guidance when needed.

Requirements

  • 5+ years of experience in Systems Administration or Infrastructure Engineering roles.
  • Strong expertise with:
  • o Windows Server and Windows desktop environments
  • o Active Directory and Azure AD (Entra ID)
  • o Microsoft 365 administration
  • o Microsoft Azure infrastructure
  • Hands-on experience managing Windows endpoints in a BYOD environment.
  • Experience configuring and supporting Fortinet/FortiGate firewalls.
  • Advanced PowerShell scripting or automation experience.
  • Solid understanding of networking fundamentals (VPN, DNS, routing, security policies).
  • Excellent documentation, communication, and problem-solving skills.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Windows ServerWindows 10Windows 11Active DirectoryAzure Active DirectoryMicrosoft 365Microsoft AzurePowerShellFortinetnetworking fundamentals
Soft Skills
documentationcommunicationproblem-solvingmentoringtechnical guidance