Head Network Administrator

November 10, 2025

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Job Description


Optimus Bank is a digital-driven financial service platform built with a bold ambition of offering optimum banking experiences to millions of customers globally.

We are recruiting to fill the position below:

Job Title: Head Network Administrator

Location: Lagos
Job type: Full-time

Responsibilities

  • Configuration and installation of various network devices and services (e.g., routers, switches, firewalls, load balancers, VPN,VOICE PBX, QoS)
  • Network maintenance and system upgrades including service packs, patches, hot fixes and security configurations
  • Monitoring system resource utilization, trending, and capacity planning
  • Providing Level-2/3 support and troubleshooting to resolve issues
  • Work within established configuration and change management policies to ensure awareness, approval and success of changes made to the network infrastructure
  • Liaising with vendors and other IT personnel for problem resolution
  • Documentation of Policies and knowledge base.

Requirements

  • Candidates should possess a B.Sc / BA in Information Technology, Computer Science or a related discipline; professional certification (e.g. CCNP, NSE4)
  • Proficiency of networking protocols (e.g., IPSEC, HSRP, BGP, OSPF,EIGRP 802.11, QoS)
  • Understanding of VPN Technologies
  • Solid understanding of the OSI or TCP/IP model
  • Proficiency of LAN Technologies (Vlans;Trunks,Etherchannels, Spanning Tree)
  • Hands-on experience with Next-Generation Firewalls (Fortinet, Cisco Firepower) Hands-on experience with monitoring, network diagnostic and network analytics tools (e.g PRTG, SOLARWIND, WIRESHARK, FIREPOWER PACKET TRACER)

Benefits
What’s in it for you?

  • Limitless Growth.
  • Positive and Inclusive Work Environment.
  • Tailored Rewards and Recognitions.
  • Continuous learning environment.
  • Health and Wellness Benefits.

Application Closing Date
Not Specified.

How to Apply
Interested and qualified candidates should:
Click here to apply online

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