Network Administrator

Profile

Multi-skilled IT Network/System Administrator with experience of over 7 years in Technology Consulting, Network Implementation and Operations Support. A dedicated and hardworking team player with strong ability to take initiatives. Motivated by overcoming challenges and willing to explore new technologies and environments.

Highlights

Helped Etranzact International Plc to setup a disaster recovery site collocated with MainOne Cable, a tier 3 datacenter

Good knowledge of PCIDSS

Hands on experience with ITIL process management

Working knowledge of Software Defined Networking (SDN) Network Virtualization

Working knowledge of Cloud Technology (Amazon Web Service)

Deployed Aruba Wireless controller less (Access Point) for a FINTECH client in Nigeria

Carrying Windows patch management using WSUS

Big IP (F5) implementation to load balance services on the network for a Fintech company.

Lead a team of 5 engineers to redesign Etranzact’s network so that Servers/Network Segment considered as PCI devices can be properly segmented.

Sound knowledge of Windows Server Clustering

Technical Skills

Software

NetApp Storage, VMWare EXSi Microsoft Hyper-V, Windows Server 2008,2012,2016, Office 365 SolarWinds, Wireshark, MS Office (MS-Word, Excel, PowerPoint, Outlook), Spam Titan

Hardware

Cisco routers (3900, 3745,7200, 2800, 1800, 1700, ASR9000), Cisco Switches (Catalyst 3650,3560,4948,2960),ASA 5520, ASA5525X, ASA5540,Cisco Firepower, Palo Alto Firewall, Check Point Firewall, Fortigate Firewall, Cisco ISE, Cisco WSA, F5 (LTM and GTM), Wireshark, Cisco Unified Communication Manager (5.x, 6.x, 7.x, 8.x), Cisco Unified Communication Manager Express (7.x, 8.x, 9.x), Voice Gateways, Unity Connection VOIP gateways,(Grandstream IP-PBX), Active Directory Server, Windows DNS Server, Exchange Server, WSUS Server HP Servers, Nimble Storage.

Protocols

Switching and Routing, DHCP,SMTP,802.1Q, VLANs, VRRP, Multicast, HRSP, GLBP, MPLS, EIGRP, OSPF, BGP, IP Application layer protocols (i.e. HTTP, HTTPS, FTP, SSH, ICMP, DNS, NFS), IPsec VPN, DMVPN, vPC, VXLAN, VSAN, FCoE, VDC, DWDM,VTEPs, OpenFlow, SMPP. IAS,STP,VTP

Operating Systems

Windows, Linux,(Bash Scripting), IOS, Nexus

Professional Work Experience

Etranzact International Plc.

Network Engineer (Team Lead) Oct 2012 – August 2018

Maintained the Data Center network infrastructure

Designed and managed a variety of switching/routing network technologies such as 802.1Q, VLANs, STP, EIGRP, OSPF, BGP, IPSEC Site to site, IPSec GRE and NAT

Managed various network routers (such as Cisco 1700, 1800, 1900, 2800, 2900, 3800, 3900, 7200 Router, ASR9000) for customer connectivity to the Etranzact network.

Segmentation of Etranzact network using Palo Alto 3260 Firewall for Application and Database segment based on PCI DSS recommendation

Implemented firewall rules, Access control policy, Intrusion Policy static NAT, dynamic NAT and Policy based NAT on Etranzact’s network using Next Generation Firewalls and Traditional Firewall.

Used Solarwinds and PRTG for network device monitoring and configuration management and analyzing resources which is used in reports for Capacity Management.

Ensured network elements were compliant with Payment Card Industry Data Security Standard (PCI DSS) standards.

Managed the SAN (Storage Area Network) of Etranzact Network

Support and administration of Windows and Linux servers, Active directory (AD) (GP management, OU management), DNS and Exchange server infrastructure on Etranzact’s network which comprises of more than 100 staffs

Administration of WSUS for system security patch management

Overhauled Etranzact’s Database servers by installing Linux on HP Gen10 Servers

Troubleshoot a variety of IP Application layer protocols (i.e. HTTP, HTTPS, FTP, SSH, ICMP, DNS, NFS)

Use of packet and protocol analyzer such as Wireshark to carry out data trace, used to resolve network related issues

Configured, administered and optimized IP telephony platform across the group – CUCM, CUCME, Cisco Unity voicemail

Working knowledge with Video over IP

Provided necessary support to the Service Managers for high profile technical escalations.

Administration of SPAM TITAN solution used in filtering emails.

Radius server implementation for network infrastructure management using Cisco ISE Server.

Configuration of seamless mobility and secured management of Etranzact’s Wireless LAN using Cisco WLAN Controller 5520 and Cisco APs.

Executed the disaster recovery plan bi-annual as a recommendation and fulfillment of ISO 22301 auditing.

Reviewed and enforced Service Level Agreements and contracts with Internet & WAN Service Providers

Designed and implemented GRE tunnels, IPsec VPN, AnyConnect VPNS for service integration to third parties and Banks in Nigeria.

Used netscout packet sniffer to troubleshoot a persistent issue with a windows application at Etranzact when visibility of the problem was not clear.

Projects:

Installed Checkpoint 3200 Firewall as an added layer security device for Etranzact DR

Supervised a team of 3 Engineers to ensure real-time replication of databases from the primary data center to the collocated DR center

Supervised the revamp of Etranzact’s Data Center carried out by a third-party vendor.

Integration to multiple Banks datacenters using IPSEC protected GRE tunnels or IPSec VPN.

Configuration of multi-home BGP pair with multiple upstream providers.

Implementation and administration of F5 LTM load balancer to support web services and application server

IPSEC VPN configuration and network integration from Etranzact to multiple telecommunication companies (MTN, 9Mobile, Airtel and GLO).

Remediated based on audit result and continually ensured organization PCI-DSS compliance for card facing active components for Etranzact

Configuration of Western Union VPN tunnel for Etranzact

Integration of Etanzact’s Network with card processing companies (MasterCard and VISA Card)

Migration of Fidelity Bank Network from IPSEC GRE to DMVPN

Redesign and Implementation of Etranzact Switching LAN as a result of office re-design

Site-to-Site VPN implementation with Transaction junction

Migration of Network services from Site-to-Site VPN to MPLS between a regulator and Etranzact for service improvement.

Integration of Cisco Web Security Appliance (WSA) into Etranzact network for web filtering.

Technologies Used:

F5 Local Traffic Manager (LTM), Wireshark, Switching and Routing, 802.1Q, VLANs, EIGRP, OSPF, BGP, IP Application layer protocols (i.e. HTTP, HTTPS, FTP, SSH, ICMP, DNS, NFS), ASA 5520, ASA5525X, DMVPN, Hyper-V

Internet Solutions Nigeria Limited

Wireless Engineer June 2012 – October 2012

Configuration, Implementation and deployment of Internet Service to clients using RF with mikrotik router board

Troubleshooting client’s network

Deployed Aruba AP 207 wireless AP for a fintech company

Set up and installed Wireless access point in client’s premises

Liaised with project management team, 3rd line engineers and service desk engineers on a regular basis.

Contact customers via email and phone for initial requirement capture.

Remote support of on-site engineers and end users/customers during and after installation

Monitored and Tested network performance while providing network performance statistics to Management.

Projects:

Integrated Mikrotic Radio used for Internet service at US consulate Oniru Lagos Nigeria.

Carried out installation of network switches at Client site for distribution layer of network.

Implemented LAN and WLAN at a client site using Cisco switches and Access Points.

Network redesign, software and hardware upgrade at client sites.

Technologies Used:

Switching/Routing 802.1Q, VLANs, DHCP, HRSP, GLBP, EIGRP, OSPF, BGP

EDUCATION

Master’s Degree in Physics 2010

University of Ibadan, Ibadan Nigeria

Bachelor’s in Physics 2006

Obafemi Awolowo University, Ondo Campus

TRAINING AND CERTIFICATIONS

Cisco Certified Network Professional (CCNP) Sept 2011

Cisco Certified Network Professional Security (CCNP-S) Aug 2013

Cisco Certified Network Associate Security (CCNA Security) Nov 2012

Cisco Certified Network Associate (CCNA) Oct 2010

ISO 22301 Lead Implementer Oct 2016

ITIL V3 2011 Foundation Certification Mar 2016

ISO 20000 Lead Implementer June 2016

Project Management Professional (PMP) Jan 2016

Scrum Fundamentals Certified July 2018

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