Network Administrator Job Description and Role Overview

This Network Administrator role is for IT professionals responsible for maintaining, securing and optimising organisational network infrastructure. Candidates with practical experience in network operations, troubleshooting and policy implementation should apply.

Network Administrator Job Profile

The Network Administrator is responsible for the daily operation and availability of the organisation's network systems. The role focuses on ensuring reliable connectivity, maintaining network hardware and software, and implementing security controls to protect data and services.

The post exists to support business continuity by monitoring network performance, diagnosing and resolving incidents, and contributing to network design and improvement projects. The Network Administrator works closely with IT colleagues and stakeholders to align network capabilities with organisational needs.

Network Administrator Job Description

The Network Administrator manages, monitors and maintains local and wide area networks to ensure optimal performance and uptime. Typical duties include configuring and maintaining routers, switches and firewalls, implementing network access controls and supporting remote and on-site users with connectivity issues. The role requires systematic troubleshooting of network events and coordinated incident response to minimise service disruption.

Operational expectations include proactive performance monitoring, routine maintenance and patching, and accurate documentation of network configurations and changes. The Network Administrator participates in change control, capacity planning and network testing, and contributes to projects that improve reliability, scalability and security. The role may require occasional after-hours support for critical maintenance or incident resolution.

Network Administrator: Duties and Responsibilities

• Install, configure and maintain network hardware and software including routers, switches, firewalls and access points
• Monitor network performance and availability, identifying and resolving bottlenecks
• Troubleshoot and resolve connectivity and performance incidents for LAN, WAN and wireless networks
• Implement and enforce network security policies and access controls
• Manage VPNs and remote access solutions to support distributed users
• Apply firmware and configuration updates and perform routine patch management
• Conduct capacity planning and provide recommendations for upgrades and improvements
• Prepare and maintain accurate network documentation, diagrams and inventory records
• Participate in change management and planned network maintenance activities
• Support backup, restore and redundancy processes to maintain business continuity
• Collaborate with IT teams on projects involving servers, storage and application performance
• Liaise with vendors and service providers for escalation and procurement of network services
• Perform regular security audits, vulnerability checks and remedial actions
• Provide user support and training for network-related issues and best practice

Network Administrator: Requirements and Qualifications

• Bachelor's degree in computer science, information technology or a related discipline, or equivalent practical experience
• Proven experience in network administration or support, typically two years or more
• Strong understanding of TCP/IP, DNS, DHCP, VLANs and subnetting
• Practical knowledge of routing and switching concepts and network topologies
• Familiarity with network security principles including firewalls, VPNs and access control
• Experience with performance monitoring, log analysis and incident management
• Good problem solving skills and the ability to diagnose complex network issues methodically
• Basic scripting or automation skills to support routine tasks and configuration management
• Ability to produce clear technical documentation and network diagrams
• Strong communication skills and experience working in cross functional teams
• Attention to detail and a methodical approach to maintenance and troubleshooting
• Willingness to provide occasional out of hours support for critical incidents or maintenance