Quick overview
Job description
Title: Systems Administrator
Location: Oak Brook, IL (Hybrid - Onsite 4 days a week)
Duration: 6+ months contract to hire
Interview: MS Teams
Job Description:
Position Summary
Client’s is seeking an experienced Systems Administrator to provide comprehensive support across corporate applications, servers, networks, and cloud environments. This is a hands-on role responsible for the administration, security, and reliability of enterprise infrastructure across multiple locations. The ideal candidate brings deep expertise across Microsoft Azure, Microsoft 365, Fortinet networking, and both virtualized and on-premises systems, and thrives in a fast-paced, multi-site environment.
Key Responsibilities
- Provide support across all corporate applications, servers, networks, and cloud environments.
- Azure Identity & Security: Administer Entra ID (Azure AD), Hybrid Identity Sync (Azure AD Connect / Entra Connect), Conditional Access, Multi-Factor Authentication (MFA), and Role-Based Access Control (RBAC).
- Azure Cloud & Hybrid Systems: Manage Azure Virtual Machines, Azure Virtual Desktops, Virtual Networks (VNets), Azure Storage, Intune / Endpoint Manager, and Microsoft 365 administration.
- Microsoft 365: Administer Teams and SharePoint, including SharePoint Intranet, Viva Engage, and Purview. Support migration of DFS storage to Teams.
- Email Administration (Exchange & Mimecast): Maintain all aspects of corporate email, including mailbox administration and migrations.
- Fortinet Network Administration: Manage FortiGates, FortiSwitches, FortiAPs, FortiMonitor, FortiManager, FortiAnalyzer, FortiNAC, and FortiSASE.
- Azure Virtual FortiGate: Design and manage VPN connectivity for segmented Management, POS, Corporate, NAC, and AVD networks across all locations.
- On-Premises System Administration: Administer Windows Server (2019–2022), Active Directory, Group Policy (GPO), DNS, DHCP, DFS, and NPS.
- Virtualization & Hardware (VMware & Dell): Design and manage Dell OpenManage Enterprise, vCenter, and ESXi across all locations.
- Linux Administration: Design and manage Linux servers for CUPS and NTP services.
- Public DNS & Certificates: Manage public DNS and certificates using NetworkSolutions and DigiCert.
Required Qualifications
- Proven experience administering enterprise Azure, Microsoft 365, and hybrid identity environments
- Strong hands-on expertise with Fortinet network and security infrastructure
- Solid background in Windows Server administration and core network services (AD, GPO, DNS, DHCP, DFS, NPS)
- Experience managing VMware (vCenter/ESXi) and Dell server hardware across multiple sites
- Linux server administration experience
- Experience managing public DNS and certificate services
- Strong troubleshooting, documentation, and communication skills
- Ability to support a distributed, multi-location environment
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