Work Preference
Summary
Overview
Work History
Education
Skills
Affiliations
Certification
Languages
Timeline
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CHRISTIAN OKAFOR
Open To Work
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CHRISTIAN OKAFOR

Lagos,LA

Work Preference

Desired Job Title

Senior NOC Engineer and Team Lead-NOC DeptNOC Support EngineerNetwork Support EngineerInformation Technology Intern

Work Type

Full TimePart TimeContract WorkGig Work

Location Preference

RemoteOn-Site
Location: Lagos, LA, NigeriaAustraliaNew ZealandCanada
Open to relocation: Yes

Important To Me

Work-life balanceCompany CultureFlexible work hoursPaid time off

Summary

I'm a proactive Telecom Engineer with over three years of professional experience. I specialize in three major NOC operations- monitoring, troubleshooting, and escalations/resolution of Voice, VAS operations, and IaaS solutions. I'm skilled in fixing complex network problems and maintaining systems effectively. I have hands-on experience in spotting where equipment might need improvement and making sure our networks stay reliable. I pay close attention to detail, love solving problems, and am willing to work well with you to keep your telecommunications NOC environment top-notch.

Network operations professional with solid track record of managing and optimizing network infrastructure. Known for effective problem-solving and maintaining high network availability. Proven ability to collaborate with team members and adapt to changing network demands, leveraging technical skills in network monitoring, incident management, and system analysis.

Overview

1
1
Certification
8
8
years of professional experience
12
12
years of post-secondary education

Work History

Senior NOC Engineer and Team Lead-NOC Dept

Interconnect Clearinghouse Nigeria Ltd
Lagos, Nigeria
07.2024 - Current
  • Led a team of NOC engineers in maintaining high availability and operational excellence across ICN's VoIP and interconnect infrastructure.
  • Served as the primary technical liaison with SBC vendors, ensuring rapid resolution of critical network incidents and service issues.
  • Managed SIP databases, routing policies, and numbering plans to ensure seamless interconnectivity between ICN, MNOs, and MVNOs.
  • Successfully delivered the MTN/ICN VoIP Expansion Project, upgrading interconnect capacity from 1Gbps to 10Gbps to support increased traffic demand and MVNO onboarding.
  • Spearheaded the integration of Vitel Wireless, Robert & John Ltd, and DMK Telecoms, enabling seamless SIP interconnectivity and service activation.
  • Automated provisioning and operational workflows using scripts and XML-based configurations, reducing manual intervention and deployment time.
  • Applied CCNA-level networking knowledge in TCP/IP, VLANs, routing, switching, and QoS to troubleshoot and optimize voice and data services.
  • Administered Linux-based VoIP and SBC servers, performing system monitoring, log analysis, service management, and fault resolution.
  • Conducted SIP trace analysis and traffic monitoring to proactively identify and resolve service-impacting issues.
  • Managed Mobile Number Portability (MNP) escalations and prepared monthly porting reports for regulatory submission to the NCC.
  • Produced traffic analytics and interconnect performance reports to support capacity planning, network optimization, and regulatory compliance.
  • Mentored and trained junior engineers on VoIP technologies, networking fundamentals, Linux administration, and operational best practices.

NOC Support Engineer

Interconnect Clearinghouse Nigeria Ltd
Lagos, Nigeria
02.2021 - 06.2024
  • I oversee the network infrastructure, ensuring adherence to NOC protocols, and delivering ongoing support and maintenance, significantly elevating customer satisfaction.
  • I have hands-on experience(remote and onsite) troubleshooting various SIP and VAS problems via technologies such as Cataleya and WTL PBX with CentOS Linux underlying ICN network infrastructure.
  • I troubleshoot complex network issues with tools such as wire shark, putty/CMD, prtg, etc while provisioning robust disaster recovery measures, through drafting several network diagrams for ease of fault detection and resolution.
  • I am proficient in fiber communication protocols for clients that Interconnect via fiber.
  • I conduct in-depth analysis of SIP packets to detect network issues, and call quality disruptions, ensuring an approximate 90% SLA uptime, and maintaining optimal service quality.
  • I maintain comprehensive documentation for each support ticket, integrating lessons learned into the knowledge base, and fostering a collaborative knowledge-sharing environment among network engineers.
  • I perform traffic analysis on voice calls collate all the traffic reports for all the POI locations of ICN and submit and defend them to NCC for review and possibly recommendations on solutions to persistent issues from the mobile operators and IDA clients.
  • I assist in monitoring and troubleshooting simple network issues on different data center equipment such as servers hosted on-premises and virtual using Putty (Linux) and Remote Desktop Connection.

Network Support Engineer

Swift Network Limited
Lagos, Nigeria
03.2020 - 01.2021
  • Installed, configured, and optimized Huawei and Cambium radios, including point-to-point, point-tomultipoint, and non-line-of-sight (NLOS) microwave links for reliable wireless connectivity.
  • Conducted site surveys, managed pre-installation planning, and performed integration and maintenance of client network infrastructure.
  • Supported both wired and wireless IP networks, ensuring high availability and performance through proactive diagnostics and troubleshooting.

Information Technology Intern

Swift Network Limited
Lagos, Nigeria
05.2018 - 11.2018
  • Assisted in WiMAX / LTE Radio Frequency planning, base station installation, commissioning, troubleshooting, and maintenance.
  • Performed Access Network performance measurement and optimization.
  • Use of Network Management Software tools namely: IP switch, I Manager, M2000, Zenoss Network Monitor, Zenoss Network Monitor for Monitoring of Base stations, servers, backhauls, Network availability and bandwidth, BBU, routers, and switches.
  • Performed daily routine surveillance on the inverter for optimal power.
  • Provide Support to on-site Operation Engineers and customer call center.

Education

Master of Science - Information Technology

National Open University of Nigeria
Lagos, Nigeria
02.2025 - Current

Bachelor of Engineering - Electronics Engineering

University of Nigeria
Nsukka, Nigeria
09.2014 - 10.2019

Higher School Leaving Certificate - West African Senior School Certificate (Sciences)

Model Secondary School
Nsukka, Nigeria
09.2008 - 07.2014

Skills

  • Good knowledge of VoIP technologies – Asterisk, WTL and Cataleya
  • Good understanding of Key voice quality metrics(Delay, Jitter, packet loss)
  • Strong Knowledge of the use of PRTG and Microsoft Visio for network diagrams
  • Motivated, organized, and professional
  • Linux/Unix understanding and ability to navigate through a system, look at logs, etc'
  • Fast learner with the ability to self-teach and dig through documentation
  • Deep understanding of the OSI layer and how network conditions affect voice quality
  • Strong analytical and problem-solving skills
  • Excellent and effective communication skills, both orally and in writing
  • Ability to use OTDR, E-Analyzer, power meter, and other signal testing tools/instruments
  • Operating Systems: Use of Linux Servers (CentOS)(Troubleshooting) and freeswitch
  • Networking: Proficient in Layer 3 and Layer 2 Protocols (OSPF, BGP, STP, MPLS, VPN/WAN) VOIP and VAS, Disaster Recovery, Wireshark for network analysis, and Network Monitoring
  • Tools: Familiar with Microsoft Office suite, Wireshark for network analysis, Incident Ticket Management, Microsoft Visio for network diagrams and various Network Monitoring tools such as PRTG Network Monitor, iManager, M2000, and Zenoss

Affiliations

Nigeria Society of Engineers

Certification

  • Cisco Certified Network Associate (CCNA) June 2026
  • Cisco: Introduction to Networks May 2026
  • Udemy complete training on Asterisks and 3C September 2024
  • Microsoft Azure Solutions Architect August 2023
  • Microsoft Azure Administrator June 2023
  • Microsoft Security and Compliance Fundamentals March 2023
  • MATLAB ONRAMP –Math Works December 2021
  • Introduction to Cloud Computing December 2021
  • Huawei Certified Internetwork Associate April 2020

Languages

English
Full Professional

Timeline

Master of Science - Information Technology

National Open University of Nigeria
02.2025 - Current

Senior NOC Engineer and Team Lead-NOC Dept

Interconnect Clearinghouse Nigeria Ltd
07.2024 - Current

NOC Support Engineer

Interconnect Clearinghouse Nigeria Ltd
02.2021 - 06.2024

Network Support Engineer

Swift Network Limited
03.2020 - 01.2021

Information Technology Intern

Swift Network Limited
05.2018 - 11.2018

Bachelor of Engineering - Electronics Engineering

University of Nigeria
09.2014 - 10.2019

Higher School Leaving Certificate - West African Senior School Certificate (Sciences)

Model Secondary School
09.2008 - 07.2014

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