Lead Systems Administrator

The Keller Group is partnering with a well-established, Arizona-based organization to hire a Lead Systems Administrator to support daily operations across servers, networks, and end-user systems. This key role will work closely with leadership to maintain a stable, secure environment and provide hands‑on support across the business. This is a fully onsite position, so all candidates must be in the Greater Phoenix Area.

We’re looking for someone who is experienced, direct, and comfortable owning systems administration and troubleshooting in a fast‑moving environment.

Own Core Systems + Network Operations

• Manage and maintain Windows server environments and core infrastructure
• Monitor performance, reliability, and system uptime
• Troubleshoot complex issues across systems, networking, and user environments

Support Microsoft 365 + Active Directory

• Administer Microsoft 365 (users, permissions, policies, security settings)
• Manage Active Directory and user access controls
• Support endpoint and identity‑related troubleshooting

Manage Network + Security

• Configure and support network components including firewalls, VLANs, VPNs, routing, and switching
• Support cybersecurity tools, patching, and standard best practices
• Ensure systems meet security and compliance expectations

Support Industry Software + End Users

• Provide support for AutoCAD and related workstation environments
• Assist with troubleshooting software performance and access issues
• Provide onsite technical support for daily employee needs

Documentation + Process Improvement

• Maintain clear documentation for system configurations and procedures
• Recommend improvements for stability, security, and efficiency

• Bachelor’s degree in Computer Science, Information Systems or relevant field.
• 6‑8+ years of progressive experience with IT systems administration
• AutoCAD experience required
• Expertise with Windows Servers, Active Directory, and Microsoft 365
• Advanced networking knowledge (firewalls, VLANs, VPNs, routing/switching)
• Comfortable supporting various offices and remote employees
• Solid grasp of troubleshooting skills and hands‑on firewall experience (Sonic Wall knowledge is a plus)
• Clear, professional communicator who’s comfortable working independently
• Able to work in office (Monday‑Friday)

• Competitive salary (DOE) with potential bonus opportunity.
• Strong benefits package.
• Stable organization with long‑term growth.
• Supportive, collaborative office environment with direct access to leadership.

If you’re a seasoned Systems Administrator who enjoys owning infrastructure, solving complex problems, and keeping systems running smoothly, we’d love to connect. Apply now!