Okegbola Simeon

Network & Security Engineer with over 5 years of experience designing, securing, and operating mission-critical enterprise network infrastructures across the Oil & Gas and Telecommunications sectors. Proven expertise managing large-scale multi-site environments comprising over 20 remote operational sites and 15 regional offices, delivering highly available routing, switching, firewall security, VPN connectivity, and WAN infrastructure. Experienced with Fortinet security solutions, Cisco enterprise networking, MPLS, SD-WAN, IPsec VPNs, and high-availability network architectures.

Adept at leading technical teams, hardening enterprise network perimeters, optimizing performance, and maintaining resilient network services supporting business-critical operations.

Network Lead at Sterling Oil Exploration & Energy Production Co. Ltd (2025-04 – Present)

• Designed, implemented, and maintained secure enterprise network connectivity across more than 20 remote operational sites and 15 regional offices, ensuring high availability and resilient communications.
• Managed Sophos firewall environment, implementing security policies, VPN connectivity, NAT, and perimeter protection for mission-critical infrastructure.
• Configured and supported enterprise routing and switching technologies including OSPF, BGP, VLAN segmentation, HSRP, and Layer 2/Layer 3 network services.
• Administered secure IPSec VPN connectivity between headquarters, branches, and remote operational locations.
• Led WAN modernization initiatives that improved application responsiveness and reduced synchronization delays by approximately 30%.
• Performed proactive monitoring, fault isolation, incident response, and root cause analysis using enterprise monitoring tools.
• Maintained network documentation, IP addressing records, topology diagrams, and configuration standards across enterprise infrastructure.
• Collaborated with cross-functional infrastructure teams to ensure network availability, security compliance, and business continuity.
• Manage Cisco Unified Communications Manager (CUCM) for 5,000+ endpoints and deployed 3CX solutions, reducing communication costs by 18%.

Network Engineer at Spectranet Limited (2021-10 – 2025-04)

• Designed and supported large-scale MPLS backbone infrastructure delivering enterprise Layer 2 and Layer 3 VPN services.
• Configured and maintained Cisco ASR, Huawei NE40/CX600, Cisco Nexus, H3C, and MikroTik routing platforms.
• Implemented and optimized BGP, OSPF, IS-IS, MPLS Traffic Engineering, QoS, and redundant routing architectures.
• Performed advanced troubleshooting across enterprise WAN, MPLS, LTE backhaul, and IP transport networks.
• Maintained 99.99% network availability through proactive monitoring, performance tuning, and structured incident management.
• Managed Fortinet FortiGate and Cisco ASA firewall environments, implementing firewall policies, NAT, IPsec VPNs, and perimeter security controls supporting mission-critical enterprise infrastructure.

B.Eng in Electrical & Electronics Engineering – Federal University of Technology, Minna (2020)

National Diploma in Electrical & Electronics Engineering – Maritime Academy of Nigeria (2013)