IT Network Administrator

About the role

Ardurra is seeking an experienced IT Network Administrator to join our internal IT team in Miami, FL. Ardurra is a rapidly growing multidisciplinary civil engineering firm with more than 2,600 employees across 100+ offices nationwide. Our Corporate IT team supports the technology infrastructure that enables our engineers and business teams to deliver critical infrastructure projects throughout the United States.

Key Responsibilities

• Manage, maintain, and monitor LAN/WAN infrastructure, Fortinet firewalls, switches, routers, and wireless systems across all Ardurra offices, ensuring optimal performance and security.
• Assess and recommend improvements to firewall management.
• Install, configure, and support network equipment including servers, VPN configuration, and other hardware/software as needed.
• Administer and support the Zscaler platform, including implementing and maintaining Zero Trust Network Access (ZTNA) solutions.
• Develop, configure, and manage VLANs across all locations to maintain network segmentation and security.
• Act as a strategic advisor to the CIO, articulating best practices, proposed solutions, and future network strategies.
• Collaborate with outsourced network service providers to align on architecture, configurations, and ongoing projects.
• Lead network design and architecture discussions, providing actionable recommendations to improve network efficiency and security.
• Perform hands-on firewall and switch configurations, system monitoring, and troubleshooting, ensuring minimal downtime and swift resolution.
• Collaborate with the IT security administrator to implement security best practices, patch management, and system updates.
• Provide support to all offices with network-related issues involving switches, firewalls, servers, access points, remote access, and related infrastructure.
• Maintain documentation related to network infrastructure, configurations, and IT procedures.
• Evaluate and recommend hardware and software upgrades in alignment with company standards.
• Provide on-call support as needed for critical issues outside normal business hours.

Qualifications

• Associate’s or Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent work experience).
• 5-10 years of network and/or systems administration experience in a multi-site enterprise environment.
• Proficiency with Windows Server, Active Directory, Azure Active Directory, DNS/DHCP, Office 365, and remote access tools (VPN, RDP).
• Hands-on experience with Fortinet networking equipment, firewalls, and cloud VoIP systems.
• Hands-on experience implementing and managing Zscaler.
• Strong knowledge of network protocols, troubleshooting tools, network design and device management.
• Familiarity with cybersecurity principles and best practices.
• Excellent communication, customer service, organizational, analytical and project management skills.
• Ability to communicate complex technical concepts to both technical and non-technical stakeholders.
• Ability to travel to various Ardurra offices on occasion (valid driver's license required).

Preferred Certifications

• CompTIA Network+
• Cisco Certified Network Associate (CCNA)
• Microsoft Certified: Azure Administrator Associate or similar