IT Support Engineer III

About the role

Sterling Infrastructure is looking for an experienced IT Support Engineer III to join our team in The Woodlands. We are looking for a true IT generalist — someone with broad technical knowledge who enjoys troubleshooting complex problems and can step in when Level 1 and Level 2 support have reached their limits. This role will serve as a key Level 3 escalation resource while also supporting technology across our corporate offices, remote locations, and active construction jobsites. We need someone who is comfortable wearing a lot of different IT hats. If you're the person your team turns to when "we've tried everything and it still isn't working," we'd like to talk to you. This is not a remote job or a hybrid role. It is FT in The Woodlands, TX location 5 days a week!

Responsibilities

• Serve as a Level 3 escalation point for complex technical issues and own problems through resolution.
• Troubleshoot Windows, Microsoft 365, Active Directory, Entra ID, hardware, software, identity/access, networking, VPN, wireless, and business applications.
• Support and manage endpoints through Microsoft Intune/MDM.
• Monitor enterprise systems and respond to performance, availability, and technical issues.
• Assist with cybersecurity remediation, vulnerability findings, patching, and system hardening.
• Use PowerShell and automation to improve support and administrative processes.
• Provide technical guidance to Level 1 and Level 2 support staff.
• Support technology projects, office moves, equipment refreshes, system rollouts, and construction jobsites.

Requirements

• 7+ years of progressive IT experience, including advanced Level 3 support or IT operations experience.
• Strong experience with Microsoft 365, Active Directory, Entra ID, Windows 11, Group Policy, Intune, MFA, and SSO.
• Solid networking knowledge including TCP/IP, DNS, DHCP, VLANs, VPNs, wireless, switches, routers, and firewalls.
• Strong troubleshooting skills with the ability to independently work through unusual or complex technical problems.
• Experience supporting multiple locations, remote users, or field operations.
• PowerShell/scripting experience preferred.
• Construction or field operations experience is a plus.