Network Administrator - DTS062

Role Description

Core Responsibilities

• Enterprise Network Operations (LAN / WAN / Data Centre)
• Work with Managed Service Providers to administer and support:
• LAN (core/distribution/access switching)
• WAN connectivity (MPLS, internet, edge routing)
• Data centre networking environments
• Monitor availability, capacity, and performance; take proactive action to prevent service degradation
• Perform incident, problem, and change management for network services
• Cloud Network Integration (Critical for your model)
• Support Azure and AVS networking, including:
• ExpressRoute configuration and troubleshooting
• Hybrid connectivity between:
• On-prem data centres
• AVS private cloud
• Azure native services
• Ensure consistent routing, segmentation, and security across environments
• Network Infrastructure Lifecycle & Refresh
• Support network infrastructure refresh programs, including:
• Switch and router upgrades
• Firewall lifecycle management
• Wi-Fi infrastructure refresh
• Validate configurations, ensure high availability, and support migration cutovers
• Maintain alignment to enterprise standards and architecture
• Network Security & Perimeter Services
• Work with Managed Service Providers to administer and support:
• Cisco and Checkpoint firewalls
• Bluecoat proxy solutions
• Network access control and segmentation
• Implement firewall rule changes with impact assessment
• Support vulnerability remediation and security compliance activities
• Application Delivery & Load Balancing
• Work with Managed Service Providers to administer:
• Citrix Netscaler (ADC/load balancing)
• Support application traffic management, SSL offload, and availability optimization
• Enterprise WiFi (Campus & Workplace)
• Work with Managed Service Providers to manage Aruba / HPE wireless infrastructure:
• Controllers, access points, authentication
• Ensure high performance and coverage across workplace environments
• Support onboarding and troubleshooting for enterprise wireless services
• AI Data Centre Support (Important Differentiator)
• Support networking for high-performance compute environments:
• Low latency, high throughput networking
• GPU cluster connectivity (if applicable)
• Work with infrastructure teams to ensure network supports AI/analytics workloads
• Monitoring, Logging & Optimization
• Knowledge of network monitoring tools to:
• Identify performance bottlenecks
• Analyze traffic patterns
• Ensure centralized logging and observability for network devices
• MSP & Vendor Coordination
• Work with Managed Service Providers:
• Validate work performed
• Provide technical oversight
• Ensure adherence to standards and SLAs
• Participate in change planning and service integration
• Documentation & Governance
• Maintain network diagrams, configurations, and operational runbooks
• Participate in change advisory boards and governance processes
• Ensure compliance with enterprise security and operational standards