Systems Administrator

Job DetailsJob Location: Las Vegas, NV 89169Position Type: Full TimeEducation Level: Not SpecifiedJob Shift: DayJob Category: Information TechnologyThe Siegel Group (TSG) is a privately held real estate investment and management company based in Las Vegas, Nevada. For more than two decades, TSG has acquired, repositioned, developed, and self-managed real estate assets throughout the United States. With a diverse portfolio spanning multiple brands and industries, we are continuing to grow and are looking for positive, hardworking, growth-minded people to grow with us.

We’re a small, efficient IT team looking for a self-starter who can own their domains without constant direction. This is a hands-on build-and-operate role across our M365, endpoint, and network security stack. You’ll need 2–3 years of real experience and the ability to hit the ground running.

Microsoft 365 & Identity

Deep administration of the M365 platform — Exchange Online, SharePoint, Teams, and related services
Administer Entra ID — user lifecycle, Conditional Access, MFA enforcement, and role assignments
Configure and manage Purview DLP policies across M365 surfaces and endpoints
Conduct access reviews, enforce least-privilege, and maintain license and role documentation

Endpoint Management

Deploy and manage Intune — enrollment, compliance policies, configuration profiles, and Autopilot
Maintain endpoint security posture through EDR tooling, including sensor health and alert response

Network & Firewall

Manage next-gen firewall (Fortinet) policy configuration and change requests across all sites
Centralized policy management and cloud-based visibility across distributed network infrastructure
Support VPN, segmentation, patching, and firmware updates

Security & Alert Operations

Monitor, triage, and respond to network and security alerts across endpoint, firewall, and SIEM platforms
Investigate events, clear false positives, escalate confirmed incidents, and document dispositions
Support SIEM configuration, data source onboarding, and alert rule management
Support vulnerability tracking, remediation coordination, and incident response activities

Helpdesk Escalation & Documentation

Serve as a technical escalation point for Tier 1/2 helpdesk issues beyond basic troubleshooting
Create and maintain runbooks, how-to guides, and knowledge base articles
Contribute to asset inventory accuracy and configuration management records

General Operations

Write and maintain PowerShell scripts for automation and administration
Keep documentation, runbooks, and change records current
Mentor and train team members across platforms and processes, building shared capability so the team can operate effectively at scale

Required Qualifications

2–3 years in a systems, infrastructure, or IT engineering role
Deep, demonstrable M365 experience across the full platform
Hands-on Intune and Entra ID experience
Familiarity with next-gen firewall platforms — policy management, rule review, VPN
Experience triaging alerts in an EDR or SIEM environment
Solid networking fundamentals — TCP/IP, DNS, DHCP, VLANs, VPN
PowerShell scripting
Self-directed with strong follow-through — comfortable owning problems in a lean environment
Must be available after hours as needed for emergencies and escalations

Preferred Qualifications

Experience with Fortinet platforms (FortiGate, FortiManager, FortiCloud)
Microsoft Purview DLP experience
SIEM configuration and data source onboarding experience
Microsoft certifications (MS-102, AZ-104, SC-300, or equivalent) are a plus

Qualifications