Network Administrator

AI summary

A full-time Network Administrator role in Lagos with an IT Solutions Company, responsible for day-to-day administration, security, and reliability of network infrastructure across multiple sites. The role covers wireless access, VLANs, Sophos firewall administration, IP address management, and close collaboration with the SOC team on vulnerability remediation and incident response.

• Full-time role based in Lagos, reporting to the Technical Lead, IT & Innovation
• Hands-on network administration across multiple sites including firewall and wireless management
• Direct collaboration with SOC team on CVE analysis and remediation
• Requires 2–4 years of network administration experience
• Relevant certifications such as CCNA, CompTIA Network+/Security+, or Sophos are an advantage

Original source description

Network Administrator in an IT Solutions Company - Stretch-it Concepts ⏲ Sep 3, 2026, 2:05 PM ⋕ View all Cybersecurity & Networking jobs Stretch-it Concepts - Our client, an IT Solutions Company is recruiting to fill the position below: Job Title: Network Administrator Location: Lagos Employment Type: Full-time Department: IT Operations / Technical Services Reports To: Technical Lead, IT & Innovation Works Closely With: SOC (Security Operations Centre) Team, Datacenter Engineering Team Job Purpose The Network Administrator is responsible for the day-to-day administration, security, and reliability of the organisation's network infrastructure across all sites. The role owns the network layer end-to-end — from wireless access and IP addressing to firewall administration and surveillance network uptime — and works closely with the SOC team to identify and remediate security vulnerabilities across the network estate. This is a dedicated, full-time technical role reporting to the Technical Lead, distinct from the Datacenter Engineering function. The Network Administrator will report directly to the Technical Lead, IT & Innovation, who will provide hands-on mentorship and operational support during onboarding and beyond. This reporting line is designed to give the role clear ownership of network administration duties while keeping close coordination with the Datacenter Engineering Key Responsibilities: Access Point (AP) Management — Deploy, configure, monitor, and troubleshoot all wireless Access Points across sites to ensure reliable and secure wireless connectivity. Documentation & Reporting — Maintain up-to-date network diagrams, IP/VLAN registers, and firewall configuration records; provide regular status reports to the Technical Lead. Security Collaboration with SOC — Work directly with the Security Operations Centre (SOC) team to analyse Common Vulnerabilities and Exposures (CVEs) affecting network infrastructure and coordinate timely patching and remediation. VLAN Administration — Design, configure, and maintain VLAN segmentation across switches and sites to ensure proper network isolation, security, and traffic management. Firewall Administration (Sophos) — Configure, monitor, and maintain Sophos Firewalls across the HUB, FifthLab, Arena, and Castew buildings, including rule management, VPN configuration, and security policy enforcement. Incident Response — Investigate and resolve network-related incidents (connectivity loss, security alerts, device lockouts) promptly, escalating to the Technical Lead where required. Camera / Surveillance Network Management — Manage the network infrastructure supporting all CCTV/camera systems, ensuring connectivity, uptime, and secure access for surveillance operations. Network Infrastructure Management — Administer, monitor, and maintain the organisation’s core and site-level network infrastructure to ensure consistent uptime and performance across all locations. IP Address Management (IPAM) — Maintain the organisation's IP addressing scheme, allocate and track IP address usage, and prevent conflicts across the network. Qualifications & Experience: Bachelor's degree / HND in Computer Engineering, Computer Science, Information Technology, or a related field. Familiarity with vulnerability management concepts and experience: collaborating with a SOC or security team on CVE remediation. Solid understanding of VLANs, IP addressing/subnetting, and wireless Access Point management. Relevant certifications an advantage: CCNA, CompTIA Network+/Security+, Sophos certifications, or equivalent. Working knowledge of Sophos Firewall administration (or equivalent enterprise firewall platforms). Minimum of 2–4 years' hands-on experience: in network administration, ideally across multi-site environments. Key Skills & Competencies: Effective collaborator — works cross-functionally with SOC and Datacenter Engineering without duplicating effort. Ability to work independently across multiple sites while maintaining clear communication with the Technical Lead. Strong troubleshooting and problem-solving skills under operational pressure. Good documentation habits and attention to detail. Security-conscious mindset with an understanding of network hardening best practices. How To Apply Interested and qualified candidates should send their CV and a recent photograph of themselves to: jobs@stretchitconcepts.com using the Job Title as the subject of the email. Application Deadline: 4th October, 2026. View all Jobs in Nigeria Lagos State Network Administrator job vacancies in Nigeria