Network/System Admin

OKECHUKWU C. NDUKA

Green Brook, NJ, *****.

Email: ********@*****.***. Phone: 908-***-****

Profile

A Cisco Certified Network Associate (R&S, Cyber Ops) with over 3 years of experience as a Network Professional in areas concerned with network and security design implementation, operations and troubleshooting enterprise network infrastructure and monitoring performance.

Relevant Skills

Effective Team Player with excellent interpersonal skills.

Effective verbal and written communication skills.

Strong analytical skills and learning ability. Work comfortably in fast-paced global team environments and solve problems with limited supervision.

Knowledge of Linux based system and VMWare virtualization.

IT Skills

In-dept understanding of Routing, Switching, Firewall, IDS, IPS, WLAN, PCAP and Network Analysis, Wireshark, Snort, Sguil, Nmap, Netstat, Dsniff, Grep, Sudo, Openssl, OSI model, TCP/IP, UDP, ICMP, SNMP, SMTP, HTTP, SCP, SFTP, FTP, RIP, EIGRP, OSPF, BGP, PAT, NAT, TLS/SSL, SSH, SLA, ACL, SHA, AES, AAA, PPP, VLAN, NTP, VTP, STP, RSTP, EtherChannel, VPN, IPsec, SPAN, WAN, VoIP, DHCP, Subnetting, Syslog, PowerShell, Lync, Linux, Windows and Microsoft Office suite (O365).

Employment History

JOJDO Business Solutions LLC, Colorado.

Network and System Administrator. (Feb. 2018 – Till Present)

Manage Cisco Routers, Switches, Wireless controllers, ASA Firewall, and other network appliances in production environments.

Implementation, documentation and troubleshooting of Cisco Network Devices like Routers, Switches, ASA Firewalls, Wireless Controllers etc. including remote access.

Setting up and managing different layer 2 and 3 technologies.

Experience with security appliances and systems, including firewalls, anti-virus software, authentication systems etc.

Managing network security policies including NAT/PAT, Frame Relay, VPN and ACL's.

Monitor system and network traffic alerts and escalate exceptions.

Experience in Content Filtering, URL filtering, Malware Filtering etc. through Firewall, WebTitan Cloud.

Virtualization installation, configuration and management of VMware Hosts, ESX/ESXi, and vCenter on a centralized machine.

MS Servers 2008/2012 R2 – Active Directory, Exchange Server 2013, DNS, DHCP.

Set up user accounts, group policy, organizational units, permissions and passwords.

Exchange Server - Establishes and manages users Outlook, Microsoft Office 365 accounts.

Apply OS patches and upgrades on a regular basis, and upgrade administrative tools and utilities.

Thorough understanding of VLAN mapping, IP addressing, sub-netting and VLSM.

Monitor network performance, track significant issues and make recommendations.

Troubleshoot and resolve desktop hardware, software and system related problems reported by users and replaced defective components when necessary.

Good knowledge of various VPNs like Site to Site VPN, IPSec VPN, SSL VPN.

Knowledge of Cyber Security threat Fundamentals and Operations, Identify Services Engines (ISE) etc.

Knowledge of CVSS scoring, SOC playbook, Classic kill chain model, Incident Response etc.

Zenith Bank Plc. Lagos, Nigeria. (2010 – 2017)

System Administrator. (Jan. 2015 – Oct. 2017)

Configured and troubleshoot Cisco routers, Switches, Firewall and layer 2/3 technologies.

Managed Network security policies including content filtering, NAT/PAT, VPN and ACL's.

Worked with security appliances and systems, including firewalls, anti-virus software, authentication systems etc.

Managed MS Windows servers 2008, 2012 – Active Directory, Exchange Servers, DNS.

Set up and manage user accounts, group policy, permissions and passwords in a 5000+ employee environment.

Established and managed users Outlook, Microsoft Office 365 accounts, mobile devices and mail flow etc. on Exchange Admin.

Maintained steady availability of network connections on all nodes.

Carried out programs and applications software updates including antivirus.

Installation of PCs, OS, software and hardware and provide technical support to users.

Troubleshoot network aware devices and replace components when necessary.

Resolve desktop hardware and software issues, including other system related problems reported by staff users via remote assistance and over the phone.

Consumer Banker and Operations Officer. (2010 – 2014)

Daily banking operations (Investment Advisory, Customer Service, Supply Chain, Inventory Management, E-payments and Cash Management) at the financial center.

Provided oversight on all operational activities including transaction accuracy, compliance with CDD, AML, CTF and other regulatory authorities.

Excellent knowledge of Banking operations, digital payment and quality customer services.

Professional Qualification

Cisco Certified Network Associate. – CCNA ID: CSCO13210023

CCNA Cyber Ops ID: CSCO13210023

Educational Qualification

University of Nigeria, Enugu State, Nigeria. Business Management. (BS)

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