Senior LAN/WAN and Security Engineer at GUS Consulting Limited

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Senior LAN/WAN and Security Engineer

Location: Lagos


  • The primary objective of this position is to support ICT operations across Routing & Switching, Firewalls, Datacentres, Wireless and Security disciplines, and execute projects
  • In addition to executing on projects and operations support, this role will provide technical mentoring and guidance to L2 / L1 support groups throughout the organization.


  • Develop and support comprehensive network LAN, WAN, wireless and security solutions that meet requirements and integrate into the overall group’s network and security architecture.
  • Evaluate current network and security systems to propose and implement network system enhancements on Network Switches, Routers, Internet Firewall Services, VPN and other Network Management devices.
  • Create and maintain standard builds/templates and apply advanced network and security engineering and architecture knowledge on complex and diverse problems.
  • Participate in IT network infrastructure project design, reviews and ensure network architecture goals and requirements are met and aligned with business objectives.
  • Work with internal customers and service providers to design, implement and support networks.
  • Well versed in cloud architectures, software defined networking, datacentre switching technologies, and securing virtual environments (AWS, Azure, Google desired).
  • Assess vendor development/test strategies for various network domain projects.
  • Perform network troubleshooting to isolate and diagnose common network problems.
  • Background in deploying both bare metal systems and virtual cloud services.
  • Support and collaborate on the development, implementation and administration of processes and procedures to ensure the reliability, recoverability, and optimum performance of network infrastructure systems and solutions.
  • Develop network and security documentation, including diagrams and work instructions, test plans, implementation plans, and project timelines for various projects.
  • Ability to work as an individual contributor, as a technical expert and as a participant in a team environment.
  • Write functional requirements/specifications documents.


  • Bachelor’s Degree in Computer Science, Network Engineering, Information Technology or equivalent industry experience.
  • Cisco CCNA, CCNP, CCIE certifications. Information technology certifications such as MCP, ITIL, VCP.
  • 5 years of progressive experience in network architecture, design, engineering and implementation in complex large IT networks and network security
  • Advanced knowledge of and experience with networking and network protocols (e.g. TCP/IP, routing, firewalls, DNS, DHCP, F5 LTM, SSH, VPNs), IP routing protocols including RIP, BGP, OSPF, IP Multicast, MPLS.
  • Thorough understanding of modern service providers, TCP/IP data networks using standards and technologies including but not limited to: Ethernet, OSPF, IGMP, STP, RSTP, 802.1q, 802.11n, and 802.11ac.
  • Experience with Policy Based Routing, Quality of Service, netflow, Wireless 802.11 a/b/g/n/ac, virtual networks, NAT, ACL controls, Web Security/URL Filtering, IPSec, Intrusion Prevention System (IPS), Malware Prevention
  • IPv4 and IPv6 experience is compulsory.
  • Knowledge, skills and experience with Cisco routing, switching, and wireless hardware, software and protocols.
  • Experience with SDN, SD-WAN products and services, plus working knowledge of structured cabling systems and network facilities.
  • Experience in firewall design and in network security including: Device Hardening, IDS/IPS, SIEM, Firewalls, and IPSec, vulnerability assessment and intrusion detection.
  • Strong WAN experience managing global network infrastructure.
  • Proven ability to accomplish assigned tasks with little supervision.
  • Excellent written and verbal communications skills.
  • Demonstrated confidence with the ability to present and have conversations.
  • Establishes best practices through collaboration with IT Security and IT Infrastructure Operations.
  • Collaborates with IT Security and Client Services toward compliance and auditing.
  • Ability to maintain and foster sensitivity and respect for a culturally diverse work environment.
  • Ability to manage and prioritize complex, changing workloads in a challenging technical environment.
  • Ability to travel.

Application Deadline
22nd October, 2019.

Method of Application
Interested and qualified candidates should send their CV to: using the Job Title as the subject of the mail.

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