Senior IT Systems Builder – Multi-Site & IT/OT

Mariana Minerals; Moab (UT); On-site; USD 90,000 - 130,000; Full time

Job summary

Mariana Minerals is seeking a Senior Systems Administrator to own hands-on systems administration, infrastructure implementation, and user support across corporate and field sites. You will help build core capabilities like authentication, backup, DR, incident response, and change management, while coordinating with Controls/OT engineering and HR.

The role requires ~25% travel to other offices and facilities; you will shape a builder-oriented environment rather than pure operations, driving

Qualifications

• 5+ years in systems and network administration with end-to-end ownership of infrastructure projects.
• Hands-on experience with Microsoft 365 and Entra ID, including centralized authentication and SSO.
• Strong networking fundamentals with enterprise hardware experience (VLANs, segmentation, firewalls, VPNs, wireless).
• PowerShell or scripting for administration and automation.
• Experience managing organization-wide software licensing and vendor coordination.
• Track record building processes or tools from scratch amid ambiguity.
• Experience coordinating managed service providers or consultants.
• Preferred: OT/mining environments, NIST SP 800-171/CMMC/ISO 27001, and Apple/Mac/Ubiquiti networking.
• Willingness to travel ~25% to other offices and project sites.

Responsibilities

• Administer Microsoft 365, Entra ID, and centralized authentication/SSO across corporate and field sites.
• Own the technical layer of SharePoint (permissions, architecture, governance) and manage access with HR.
• Maintain software and SaaS license management, including renewals and cost optimization.
• Establish end-to-end hardware lifecycle management across offices and field sites.
• Configure routers, switches, firewalls, VPNs, and wireless networks; enhance IT/OT boundary security.
• Build and document backup/disaster recovery, security controls, and incident/change processes.
• Coordinate and hold accountable managed service providers and consultants.
• Escalate complex issues and develop help desk processes and SLAs.
• Mentor junior IT staff and create documentation/training to grow the team.

Skills

Microsoft 365

Entra ID

SSO configuration

PowerShell

Networking fundamentals

Licensing management

Vendor coordination

Documentation & training

Infrastructure design

OT experience

Education

Bachelor's degree or equivalent

Tools

SharePoint

MS 365 Admin Center

Routers & switches

Firewalls & VPNs

Wireless networks

Job description

Mariana Minerals is seeking a Senior Systems Administrator to own hands-on systems administration, infrastructure implementation, and user support across corporate and field sites. You will help build core capabilities like authentication, backup, DR, incident response, and change management, while coordinating with Controls/OT engineering and HR.

The role requires ~25% travel to other offices and facilities; you will shape a builder-oriented environment rather than pure operations, driving