SENIOR NETWORK ENGINEER

The Agricultural Research Council; Pretoria; On-site; ZAR 300,000 - 400,000; Full time

Job description

Responsibilities

• Design, implement, and maintain scalable, secure, and high-performing enterprise network infrastructures (LAN, WAN, WLAN, SD-WAN, data centre networks).
• Develop network topology diagrams and documentation for current and future network architecture.
• Ensure continuous network availability, performance monitoring, and system health checks.
• Perform regular maintenance, updates, and patches on all network devices (routers, switches, firewalls, wireless access points).
• Diagnose and resolve complex network issues, under time constraints.
• Provide Level 3 support and serve as the escalation point for network-related incidents.
• Implement and manage network security measures including firewalls, VPNs, IDS / IPS, and access controls.
• Ensure network compliance with organizational policies and external regulations
• Lead or support the implementation of network-related projects (e.g., infrastructure upgrades, data center migrations, office expansions).
• Coordinate with vendors, service providers, and internal teams to deliver projects on time and within scope.
• Maintain accurate and up-to-date network diagrams, configurations, and operational documentation.
• Prepare technical reports, proposals, TORs, and post-implementation reviews.
• Design and maintain network failover and redundancy systems to support business continuity.
• Participate in disaster recovery planning, testing, and execution.
• Provide training and knowledge-sharing sessions to improve team capability.
• Collaborate with IT leadership, cybersecurity teams, business units, and external vendors to align network services with ARC needs.
• Participate in strategic planning and capacity forecasting.
• Ensure compliance to change management and respond to audit finding