Senior Enterprise Network Administrator — Multi-Site & ZTNA

Ardurra; Miami, Northern (FL, KY); Hybrid; USD 85,000 - 105,000; Full time

Job summary

Ardurra is seeking an IT Network Administrator to join our Corporate IT team in Miami, FL. You will manage and secure our nationwide LAN/WAN, Fortinet firewalls, VLANs, VPNs, and Zscaler deployments to support 100+ offices.

The role requires 5–10 years of enterprise network experience, strong collaboration with CIO and third‑party providers, and occasional travel to other Ardurra offices. Competitive benefits and a stable, growth‑focused environment.

Qualifications

• 5–10 years in network/system administration in multi-site enterprise.
• Experience with Windows Server, AD, DNS/DHCP, Office 365, VPN, and RDP.
• Fortinet, Zscaler, and security best practices familiarity.

Responsibilities

• Manage LAN/WAN infrastructure, Fortinet firewalls, switches, routers, and wireless.
• Install, configure, and support network equipment including VPNs.
• Administer Zscaler platform and implement ZTNA.
• Develop VLANs and network segmentation.
• Collaborate with CIO and outsourced providers on architecture.
• Provide on-call support and disaster recovery coordination.

Skills

Network administration

Multi-site env

Communication

Customer service

Project management

Education

Associate or Bachelor degree

Tools

Fortinet

Azure AD

Office 365

Zscaler

VPN

Job description

Ardurra is seeking an IT Network Administrator to join our Corporate IT team in Miami, FL. You will manage and secure our nationwide LAN/WAN, Fortinet firewalls, VLANs, VPNs, and Zscaler deployments to support 100+ offices.

The role requires 5–10 years of enterprise network experience, strong collaboration with CIO and third‑party providers, and occasional travel to other Ardurra offices. Competitive benefits and a stable, growth‑focused environment.