Senior Systems Engineer: Windows, Azure & Fortinet

RIVO Holdings, LLC

San Diego (CA)

On-site

USD 110,000 - 140,000

Full time

3 days ago

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Benefits offered by this job

Childcare support

Fitness program

Company events

Padres tickets

Free coffee/Snacks

Parking/Commute

Attendance incentive

Generous PTO

Health coverage

401(k) matching

Job summary

RIVO Holdings, LLC is seeking a proactive Senior Systems Engineer to join our IT team. You’ll administer and secure our Microsoft-based infrastructure and Fortinet network environment, spanning Hyper‑V servers, Azure cloud, and a multi-tenant Microsoft 365/Azure environment, while building automation for reliable, well‑managed technology.

This on-site role requires hands-on expertise in Windows Server, Entra ID, Intune, and Fortinet security.

Qualifications

5+ years of experience as a systems administrator in a Windows/Microsoft environment.
Hands-on experience with Windows Server, Microsoft Intune, Entra, Microsoft Azure Subscriptions, and Hyper-V virtualization.
Strong working knowledge of Microsoft 365 and Entra ID (Azure AD) administration, including multi-tenant environments.
Hands-on experience administering Fortinet or similar enterprise firewall, switching, and wireless infrastructure.
Solid scripting/automation skills, including PowerShell and Microsoft Graph API.
Experience with networking fundamentals: switching, routing, VPNs, and firewalls.
Experience with backup and disaster recovery tools, including Microsoft 365 backup solutions.
Experience investigating and documenting security incidents.

Responsibilities

Administer and maintain Windows Server environments, Active Directory, DNS, DHCP, and Group Policy.
Support Microsoft 365 services including Exchange Online, SharePoint, Teams, and OneDrive across a multi-tenant environment.
Manage identity and access through Entra ID (Azure AD), including MFA, conditional access, and cross-tenant collaboration.
Administer Hyper-V virtualization and Azure infrastructure, including virtual networks and site-to-site VPN connectivity.
Monitor server, network, and storage performance and backups, and troubleshoot issues proactively.
Administer and harden Fortinet firewall, switch, and wireless infrastructure (FortiGate, FortiSwitch, FortiAP), including VPN configuration.
Monitor security logs, investigate incidents, and coordinate vendor escalations as needed.
Apply security patches, updates, and endpoint protection (Microsoft Defender) across servers and workstations.
Support device management and compliance policies through Microsoft Intune, including mobile device management for BYOD.
Track and drive remediation of Microsoft Secure Score findings.
Follow best practices for data protection, access control, and disaster recovery, including Microsoft 365 backup solutions.
Develop PowerShell and Microsoft Graph API scripts to automate administrative and monitoring tasks.
Build and maintain Power Automate workflows to support business process automation.
Support SAML/SSO integrations between Entra ID and third‑party applications.
Application and policy deployment using both Microsoft Intune and Microsoft Defender
Provide Tier 2/3 support for escalated help desk tickets.
Document systems, processes, and procedures for the IT team.
Manage user account provisioning/deprovisioning and hardware lifecycle.
Partner with IT and Security teams on projects and infrastructure upgrades.
Assist with vendor management, escalations, and software license management.