Senior System Engineer

Solaris Energy Infrastructure, Inc. (NYSE:

SEI) provides scalable equipment-based solutions for use in distributed power generation as well as the management of raw materials used in the completion of oil and natural gas wells. Headquartered in Houston, Texas, Solaris serves multiple U.S. end markets, including energy, data centers, and other commercial and industrial sectors.

The Senior Systems Engineer provides hands‑on technical support to end‑users, including the Executive Team, while owning the corporate infrastructure stack. The ideal candidate pairs deep engineering expertise with a service‑first mindset: equally at ease closing a support ticket and architecting a system improvement. No task is beneath them; no challenge is too complex.

• Deliver first‑class technical support to all end‑users (hardware, software, M365, connectivity, peripherals) with same‑day resolution as the standard.
• Serve as the senior escalation point; maintain a high first‑contact resolution rate and contribute to the IT knowledgebase.
• Own onboarding/offboarding execution — account provisioning, device setup (Windows and Apple macOS), and hardware recovery.
• Manage printers, MFPs, monitors, docking stations, and peripherals.
• Administer the full M365 tenant:
  Entra , Exchange Online, SharePoint, Teams, One Drive, Intune, Defender, and Purview.
• Manage licensing, conditional access, MFA, data governance, Teams governance, and external federation.

• Support Apple macOS end‑users: troubleshooting, OS updates, software installation, and hardware issues.
• Integrate macOS with M365 and corporate security tooling (Sophos EDR, patch compliance) using available native controls.
• Own the full Windows device lifecycle: imaging, Autopilot/zero‑touch provisioning, and hardware refresh; manage macOS device setup and onboarding manually.
• Administer Windows Server environments:
  Active Directory, DNS, DHCP, Group Policy, and file services.
• Manage the Nutanix HCI platform — cluster health, high availability, and resource optimization.
• Administer the Cisco Meraki environment (MX, MS, MR, SD‑WAN) via Dashboard; maintain patching cadence and change control.

• Manage enterprise backup platforms with documented recovery procedures aligned to defined RTO/RPO targets; conduct regular DR testing.
• Administer Sophos EDR/XDR — endpoint detection, response, and threat monitoring.
• Manage email security, patch compliance, identity controls, and vulnerability management.
• Support SOX IT controls, access reviews, and audit evidence gathering; maintain the IT risk register.

• Administer and proactively monitor Microsoft Teams Rooms (MTR) across all collaboration spaces.
• Manage Logitech hardware (Rally Bar, Tap, Scribe) — firmware, policy, and peripheral health via Teams Pro Management portal.
• Develop standardized room configurations and runbooks for new site deployments.
• Conduct periodic technology stack reviews and deliver written recommendations with business case justification.
• Proactively identify and remediate technical debt; partner with the SVP of IT to maintain a forward‑looking infrastructure roadmap.

• 5+ years of progressive systems/infrastructure engineering experience in a corporate IT environment.
• Windows Server administration: AD, GPO, DNS, DHCP, file services.
• Apple macOS supports experience: troubleshooting, OS/software management, and integration with M365 and Active Directory/Entra .
• Nutanix HCI platform administration.
• Microsoft Teams Rooms with Logitech hardware (Rally Bar series, Tap, Scribe).
• Enterprise backup/recovery platforms including DR testing and documentation.
• Exceptional interpersonal skills with the ability to build credibility at all organizational levels.

• Microsoft certifications: MS-102, AZ-104, or equivalent;
  Apple Certified Support Professional (ACSP) a plus.
• Cisco Meraki CMNA or higher;
  Sophos Certified Engineer or equivalent.
• SOX IT controls experience; ITIL familiarity;
  Solar Winds Service Desk or similar ITSM.

• Exceptional communicator –…