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CAREER
Computer Network & Systems Engineer
Design, build and maintain the digital infrastructure that keeps organisations connected
Computer Network and Systems Engineers plan, implement, and manage the networks and systems that allow organisations to communicate, share data, and operate securely. From configuring routers to troubleshooting outages, they are the backbone of every connected business.
Hard Skills
Tech & Tools
Network Architecture
Think of a network like the road system of a city — engineers decide where the highways go, how traffic is routed, and what happens when a road closes. They design both local area networks (LANs) and wide area networks (WANs) to keep data moving efficiently.
Hardware & Infrastructure
The job involves physical equipment too — routers, switches, servers, and firewalls. Engineers install, configure, and maintain these devices to keep systems running at full capacity
Protocols & Standards
Networks speak in protocols — the agreed rules for how data is sent and received.
- TCP/IP — the foundation of internet communication
- DNS & DHCP — how devices find each other on a network
- VPN & firewalls — securing data across connections
Soft Skills
People & Work Style
Analytical Thinking:
When a network goes down, every second costs money. Engineers need to diagnose faults fast — tracing problems through layers of hardware and software to find the root cause.
Communication:
You’ll translate complex technical issues into plain language for non-technical managers and clients. Clear reporting keeps stakeholders informed and decisions moving.
Methodical Work Style:
Network changes affect entire organisations. Engineers follow strict change management processes — documenting every configuration, testing before deploying, and rolling back if something breaks.
Continuous Learning:
The network landscape shifts constantly — cloud infrastructure, 5G, SD-WAN. Staying current with emerging technologies is part of the job, not an extra.
A Day in The Life
What this role looks like – real task from the field
Review overnight monitoring alerts and system logs
Check uptime dashboards for any outages or degraded performance
Prioritise any critical issues flagged overnight
Investigate and resolve any active network faults or performance issues
Apply firmware updates and security patches to network devices
Run routine capacity checks — bandwidth, storage, CPU utilisation
Sync with the infrastructure team on active tickets
Review upcoming maintenance windows and change requests
Coordinate with security team on any flagged vulnerabilities
Step away from screens — complex problem-solving needs mental breaks
Catch up with colleagues on cross-team projects
Configure new network segments or expand existing infrastructure
Test and validate changes in a lab environment before production rollout
Document configurations and update network diagrams
Log all changes made during the day with full documentation
Update ticket statuses and notify stakeholders of resolutions
Brief the on-call team on anything to watch overnight
Plan next day's priorities and scheduled maintenance tasks
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