Network Engineer (L3)

Responsibilities

• REQUIRED SKILLS & COMPETENCIES
• LAN and WAN - switching, VLAN management, trunking, Spanning Tree and layer 3 routing
• Aruba switching - configuration, VLAN provisioning, port management and policy management
• Firewall management - Fortinet FortiGate and MikroTik; policy creation, NAT and security profiles
• VPN - SSL VPN and client VPN gateway configuration, profile management and monitoring
• DNS, DHCP and IPAM - zone management, scope configuration and IP address lifecycle
• Load balancing - rule configuration, health check management and listener lifecycle
• Cloud networking - virtual networks, security groups, NSG, cloud VA firewall and routing
• Cloud network virtual appliance firewalls - deployment, policy management and monitoring
• Anti-DDoS - on-premises DDoS appliance and cloud-native DDoS mitigation management
• Network monitoring - Cisco DNA Centre and Cisco Thousand Eyes for visibility and synthetic testing
• QoS monitoring - quality of service configuration, monitoring and performance trend analysis
• Network security support - posture monitoring, CVE patching and security policy compliance
• Infrastructure as code - Terraform and Ansible for network configuration management
• Performance and policy review - regular network performance analysis and policy optimisation
• Design and manage LAN and WAN topology - Aruba switching, VLAN provisioning and layer 3 routing
• Manage Fortinet and MikroTik firewall policies - rule lifecycle, NAT, CVE patching and security profiles
• Configure and maintain SSL VPN and client VPN services; manage user profiles and monitor tunnel health
• Manage DNS zones, DHCP scopes and IP address management across all environments
• Configure and maintain load balancer rules, health checks and listener configuration
• Manage cloud networking across all provider environments - security groups, routing and cloud VA firewalls
• Operate and maintain anti-DDoS appliances and cloud DDoS mitigation services
• Monitor network performance and availability using Cisco DNA and Cisco Thousand Eyes
• Monitor QoS and conduct regular performance and policy reviews; produce trend analysis reports
• Maintain network security posture; respond to security anomalies and policy violation alerts
• Participate in the change advisory process for all network changes and maintain audit records
• Maintain network documentation, configuration runbooks and topology diagrams
• Provide Level 3 network incident support and coordinate with vendors where required
• Preferred Skills
• Relevant certifications (CCNP/CCIE, NSE, Aruba certifications)
• Experience with DDoS protection solutions
• Scripting (Python, Bash) for automation
• Exposure to Zero Trust or advanced security architectures

Additional Information

Role Overview We are seeking a highly skilled Network Engineer (L3) on a contract basis to design, implement, and lead the operation of enterprise network infrastructure across on-premises and multi-cloud environments. This role requires deep expertise in LAN/WAN, security, cloud networking, and automation, along with the ability to act as a technical escalation point and drive network optimization initiatives. The engineer will focus on architecture, complex troubleshooting, performance tuning, and ensuring secure, scalable, and highly available network environments.

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Company Intel

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