Network Administrator

Network Administrator | 3-Month Contract | Sydney CBD

📍 Sydney CBD

🕒 3-Month Contract with potential extension

🏢 5 Days Onsite

We are seeking an experienced Network Administrator to join a high-performing technology team supporting a complex enterprise environment.

This is a hands-on role requiring strong expertise across networking, security, wireless, and communications infrastructure. You'll be responsible for maintaining critical systems, troubleshooting complex issues, implementing network improvements, and ensuring the reliability and security of enterprise services.

Key Responsibilities

• Administer and support enterprise network and communications infrastructure.
• Monitor network performance, availability, and capacity.
• Troubleshoot and resolve network incidents and outages.
• Manage network security platforms and connectivity services.
• Design and implement scalable, secure network solutions.
• Support infrastructure upgrade and refresh projects.
• Work closely with internal stakeholders and technology vendors.
• Contribute to continuous improvement initiatives and operational excellence.

Required Technical Skills

• Cisco Catalyst & Nexus Switches
• Arista Switching Technologies
• Cisco Wireless Controllers
• Palo Alto Firewalls (Physical & Virtual)
• GlobalProtect VPN
• IPSec Tunnels
• Certificate Management / PKI
• Avaya Phone Systems
• Enterprise LAN / WAN / MAN Networks
• Network Monitoring & Troubleshooting
• Network Security & Infrastructure Operations

Essential Experience

• Experience as a Network Administrator in a complex enterprise environment.
• Strong hands-on experience with network infrastructure, security, and communications technologies.
• Proven experience supporting high-availability environments.
• Strong understanding of networking principles and security best practices.
• Excellent troubleshooting and problem-solving skills.
• Ability to communicate effectively with both technical and non-technical stakeholders.
• Experience managing multiple priorities in a fast-paced environment.