How to Become a Network Engineer: Career Guide

Network engineering remains one of the most stable career paths in IT, since every organisation with a digital presence depends on reliable, secure connectivity. Understanding the route into the role, the skills employers expect, and how the career progresses helps you plan a realistic path in.

Quick Answer

Becoming a network engineer typically means building hands-on skills in networking fundamentals, gaining a recognised certification such as CompTIA Network+ or Cisco CCNA, and getting practical experience through an entry-level IT support or apprenticeship role before moving into a dedicated network engineering position.

What Does a Network Engineer Actually Do?

A network engineer designs, implements, and maintains the infrastructure that connects computers, servers, and devices within an organisation. Day-to-day work includes configuring switches and routers, monitoring network performance, troubleshooting connectivity issues, and implementing security measures to protect the network from unauthorised access.

Core Skills Employers Look For

Networking fundamentals. A solid understanding of LAN and WAN concepts, IP addressing, subnetting, and the OSI model.
Hardware configuration. Practical experience configuring switches, routers, and firewalls from major vendors such as Cisco, Juniper, or Ubiquiti.
Troubleshooting. The ability to systematically diagnose and resolve connectivity and performance issues under pressure.
Security awareness. Understanding of network segmentation, firewall configuration, and common attack vectors.
Documentation. Clear record-keeping of network configurations, changes, and incident resolutions.

Certifications Worth Pursuing

CompTIA Network+. A vendor-neutral entry-level certification covering networking fundamentals, widely recognised as a strong starting point.
Cisco CCNA. A respected certification covering Cisco networking equipment configuration, valuable given how widely Cisco hardware is deployed.
CompTIA Security+. Useful alongside networking certifications, since security knowledge increasingly overlaps with network engineering roles.
Cisco CCNP. A more advanced certification for engineers moving into senior or specialist network roles.

A Realistic Route Into the Role

Build foundational knowledge. Study networking fundamentals independently or through a college course, and practise using free lab tools such as Cisco Packet Tracer.
Earn an entry-level certification. CompTIA Network+ is a common starting point that demonstrates baseline knowledge to employers.
Get hands-on experience. An IT support role, helpdesk position, or apprenticeship provides practical exposure to real network environments.
Specialise and progress. Move into a dedicated network engineer role, then pursue more advanced certifications as your experience grows.

What to Include on a Network Engineer CV

Specific hardware and software you have configured, not just general networking knowledge
Certifications achieved, listed clearly with the awarding body
Any troubleshooting or incident resolution examples with a measurable outcome
Familiarity with monitoring tools, ticketing systems, and documentation practices
Any exposure to network security, since this increasingly overlaps with the role

How Network Engineering Connects to Broader IT Skills

Strong network engineers understand how switches, cabling, and security controls work together as a complete system rather than in isolation. Our guides on network switches and network security cover the practical infrastructure knowledge that underpins day-to-day network engineering work.

Career Progression and Specialisation

Many network engineers progress toward specialisms such as network security, cloud networking, or wireless infrastructure as their career develops. Others move into senior infrastructure architecture roles, designing entire network strategies for larger organisations rather than managing day-to-day operations.

Frequently Asked Questions

Do I need a degree to become a network engineer?
Not necessarily. Many network engineers enter the field through certifications and hands-on experience rather than a formal degree, though a relevant qualification can help.

Which certification should I get first?
CompTIA Network+ is a common and widely respected starting point, since it covers vendor-neutral networking fundamentals.

How long does it take to become a network engineer?
This varies, but many people move from entry-level IT support into a network engineering role within two to four years of focused study and experience.

Is network engineering a good long-term career?
Yes. Reliable connectivity remains essential to nearly every organisation, and the field continues to evolve alongside cloud and security specialisms.

What is the difference between IT support and network engineering?
IT support typically handles day-to-day user issues across a range of systems, while network engineering focuses specifically on designing, configuring, and maintaining network infrastructure.