Systems Administrator

Siegel Group; Las Vegas (NV); Hybrid; USD 70,000 - 95,000; Full time

Job summary

Siegel Group in Las Vegas, NV seeks a hands-on IT professional to own our M365, endpoint, and network security stack. The role emphasizes self-direction in a lean team and requires 2-3 years of real-world experience.

You will manage Identity and Access with Entra ID, administer Intune, monitor EDR/SIEM alerts, and support firewall policies across sites. Strong PowerShell scripting and documentation experience are essential.

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 Fortinet 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.

Responsibilities

• Administer M365 platform including Exchange Online, SharePoint, Teams.
• Configure Entra ID lifecycle, CA, MFA, and license documentation.
• Manage Intune enrollment, policies, and Autopilot.
• Oversee Fortinet firewall policy across sites.
• Monitor and respond to security alerts via EDR/SIEM.
• Create runbooks and maintain documentation.
• Mentor teammates and automate with PowerShell.

Skills

M365 Platform

Intune

Entra ID

PowerShell

EDR/SIEM

Networking basics

Automation scripting

Tools

Fortinet

Purview DLP

Microsoft 365 admin center

Job description

Job DetailsJob Location: Shared Service - 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