What are the responsibilities and job description for the Systems Administrator position at SIEGEL GROUP NEVADA INC?
The 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