Network Engineer
Technology & Computing · Engineering
Network Engineers plan and maintain LAN, WAN and wireless networks. Nigerian telecoms companies, ISPs, banks and oil & gas firms are major employers. Cisco CCNA/CCNP and CompTIA Network+ are industry standard certifications.
Salary (Nigeria)
₦1,500,000 – ₦9,000,000 / year
Salary (International)
$15,000 – $90,000 / year
Exam requirements
Career pathway
Complete Secondary School Education
6 years
Build a strong foundation in Mathematics, English Language, Computer Studies, Physics, and other science-related subjects.
Obtain a Bachelor's Degree (Optional but Beneficial)
3-5 years
Earn a degree in Computer Science, Information Technology, Computer Engineering, Electrical/Electronic Engineering, Telecommunications Engineering, or a related field. A degree is beneficial but not mandatory for becoming a Network Engineer.
Learn Computer Fundamentals
1-2 months
Understand computer hardware, operating systems, networking basics, and system architecture.
Learn Networking Fundamentals
1-2 months
Study network types, topologies, the OSI and TCP/IP models, network devices, and basic communication concepts.
Master TCP/IP and IP Addressing
1-2 months
Learn IPv4, IPv6, subnetting, routing, switching, DNS, DHCP, NAT, and other core networking concepts.
Learn Routing and Switching
2-3 months
Configure routers and switches, VLANs, trunking, and routing protocols such as OSPF, EIGRP, and BGP.
Learn Network Security
1-2 months
Understand firewalls, VPNs, access control lists (ACLs), intrusion detection systems, and network security best practices.
Learn Linux and Windows Server Administration
1-2 months
Gain practical knowledge of Linux and Windows Server administration, including DNS, DHCP, and Active Directory.
Learn Wireless Networking
2-4 weeks
Study Wi-Fi standards, wireless security, wireless controllers, and enterprise wireless network deployment.
Learn Network Monitoring and Troubleshooting
1-2 months
Use monitoring and diagnostic tools to identify, analyze, and resolve network issues efficiently.
Learn Cloud Networking
2-3 months
Understand virtual networking and cloud infrastructure using AWS, Microsoft Azure, or Google Cloud Platform.
Learn Network Automation
1-2 months
Use Python, Ansible, or PowerShell to automate network configuration and management tasks.
Learn Virtualization Technologies
1 month
Gain experience with VMware, Hyper-V, VirtualBox, and virtual networking environments.
Build Home Lab Projects
2-4 months
Create practical networking labs using Cisco Packet Tracer, GNS3, EVE-NG, or physical networking equipment to simulate real-world scenarios.
Learn Version Control (Git & GitHub)
2-4 weeks
Learn Git for managing scripts, network automation projects, and configuration files.
Earn Industry Certifications
2-6 months
Obtain certifications such as Cisco CCNA, Cisco CCNP, CompTIA Network+, Juniper JNCIA, or Microsoft Azure Network Engineer Associate.
Build a Professional Portfolio
1 month
Showcase networking projects, automation scripts, lab configurations, diagrams, and certifications on GitHub or a personal portfolio website.
Gain Practical Experience
3-12 months
Complete internships, volunteer work, freelance projects, or entry-level network support roles to gain real-world experience.
Prepare for Technical Interviews
1-2 months
Practice networking concepts, subnetting, troubleshooting, routing, switching, and interview questions.
Apply for Network Engineer Roles
1-6 months
Apply for positions such as Network Technician, Network Administrator, Network Support Engineer, Junior Network Engineer, or Network Operations Center (NOC) Engineer.
Continuous Learning and Career Growth
Ongoing
Stay updated with emerging networking technologies, cloud networking, cybersecurity, automation, software-defined networking (SDN), and industry best practices.
Common challenges
Learning Networking Fundamentals
DifficultUnderstanding concepts such as the OSI model, TCP/IP, routing, switching, subnetting, and network protocols can be challenging for beginners.
How to handle: Start with the fundamentals, use visual learning resources, and practice regularly using networking simulators.
Mastering IP Addressing and Subnetting
DifficultCalculating subnets, IP ranges, and network addresses requires strong analytical skills and regular practice.
How to handle: Practice subnetting exercises daily and use online subnet calculators while learning.
Configuring Routers and Switches
ModerateSetting up and managing networking devices involves learning vendor-specific commands and configurations.
How to handle: Practice using Cisco Packet Tracer, GNS3, or EVE-NG and follow official vendor documentation.
Understanding Network Security
DifficultProtecting networks from cyber threats requires knowledge of firewalls, VPNs, access control lists, and security protocols.
How to handle: Learn cybersecurity fundamentals, implement security best practices, and stay updated on emerging threats.
Troubleshooting Network Problems
DifficultDiagnosing connectivity issues, hardware failures, and configuration errors can be time-consuming and complex.
How to handle: Develop a structured troubleshooting process, use diagnostic tools, and document common issues and solutions.
Collaboration with IT Teams
ManageableNetwork Engineers work closely with system administrators, cybersecurity teams, cloud engineers, and software developers.
How to handle: Strengthen communication skills, document network changes clearly, and participate actively in team planning sessions.
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Key skills
Resources
Minimum qualification
B.Sc. Computer Science, Electrical Engineering or IT