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OMOLEWA AKINYOMI

@omolewaakinyomi

Network and Security Engineer at Interswitch Group, who led a Cisco ACI upgrade and migrated Cisco WLC to Catalyst 9800.

Nigeria

Message

At Interswitch Group, I maintain Head Office and Disaster Recovery Data Centre networks and configure Fortinet and Cisco FTD firewalls. I also designed secure site-to-site VPNs across on-premises and cloud platforms.

I led a Cisco ACI upgrade, including validation, APIC and switch upgrades, and post-upgrade health checks. I also managed the migration from Cisco WLC 5520 to Catalyst 9800, from configuration conversion through production cutover.

Previously, at Sterling Bank, I integrated redundant ISP backhaul connectivity at the DR site and connected Dell Power Flex infrastructure through Cisco ACI. Earlier roles at Polaris Bank Ltd. and Fidelity Bank PLC included branch and data centre network operations, troubleshooting, and network security.

Experience

Work history, roles, and key accomplishments

Current

Network and Security Engineer

Current

Interswitch Group

Jan 2025 - Present (1 year 10 months)

•Maintained high availability of Head Office and Disaster Recovery Data Centre networks, ensuring uninterrupted access to business-critical systems.
•Strengthened network security by configuring and managing Fortinet and Cisco FTD firewalls, reducing exposure to external threats.
•Designed and maintained secure site-to-site VPNs across on-premises and cloud platforms (AWS, Azure, GCP) to support r

Core Network Engineer

Sterling Bank

Jan 2024 - Jan 2025 (1 year)

•Led the integration of redundant ISP backhaul connectivity at the Bank’s DR site, strengthening business continuity, risk mitigation, and regulatory resilience.
•Implemented integration of Dell Power Flex infrastructure with the Bank’s network leveraging Cisco Application Centric Infrastructure (ACI) for scalable and policy-driven connectivity.
•Maintained near 100% uptime for Head Office and Dis

Network Engineer

Polaris Bank Ltd.

Jun 2022 - Feb 2024 (1 year 8 months)

•Successfully deployed and configured routers and switches for new and existing branches, supporting business expansion.
•Maintained 24/7 network availability across data centres, branches, and offsite locations.
•Provided first-line network support to 200+ branches, resolving connectivity and hardware issues efficiently.
•Reduced downtime by delivering remote troubleshooting and rapid fault isola

Network Administrator

Fidelity Bank PLC

Aug 2019 - Jul 2022 (2 years 11 months)

• Monitor and analyze network performance across the organization’s LANs, WANs, and wireless deployments.
• Ensure the stable operation and efficient performance of networks bank wide.
• Monitoring, analyzing and resolving alerts generated from monitoring solution
• Creating network policies and authorization roles and defending against unauthorized access.
• Monitor system capacity to determine i

Central Processing Officer

Union Bank of Nigeria

May 2017 - Jun 2019 (2 years 1 month)

• Evaluated transactions and reporting for adherence to applicable regulatory guidelines and data integrity
• Created spreadsheets using Microsoft Excel for daily, weekly and monthly reporting
• Improved operations through consistent hard work and dedication
• Monitored customer’s fixed deposits on the core banking application

Office Administrator

Igbinedion University

Jun 2016 - Apr 2017 (10 months)

Worked as Office Administrator at Igbinedion University.

Intern (IT SUPPORT)

Federal Airports Authority of Nigeria

Aug 2014 - Jan 2015 (5 months)

• Investigated and diagnosed network problems
• Maintaining the company’s IT network problems
• Answering incoming calls concerning IT reports, faults in a particular unit of the company
• Conducted daily IT checklist for each individual site in order to proactively prevent regular or common faults
• Provide general administrative support.