Emmanuel Chigere

Served as Technical Lead for enterprise IP service provisioning across Northern Nigeria (Abuja), directing large-scale integration of ipNX solutions into complex corporate infrastructures and multi-site WAN environments.
Architected and deployed scalable BGP IP transit, secure Layer 2/Layer 3 MPLS VPNs, VRF-based Metro Ethernet, and enterprise backhaul services over fiber and fixed wireless networks.
Engineered and optimized routing and switching architectures using EIGRP, OSPF, BGP, and MPLS, delivering fault-tolerant, high-performance WAN environments.
Implemented high-availability hybrid-cloud connectivity using AWS EC2, private endpoints, load balancing, and redundant WAN paths to support mission-critical workloads.
Provided Tier 2/3 escalation support in collaboration with Enterprise Service Management and i-TAC teams, maintaining strict SLA compliance across enterprise circuits.
Provisioned enterprise Metro backhaul using VRF-based Layer 3 MPLS VPNs and dedicated Layer 2 MPLS leased-line services connectivity for high-security clients.
Monitored core and edge network performance using NetFlow and Prometheus, proactively mitigating service degradation and preventing large-scale outages.
Automated network configuration and telemetry data collection using Python scripting, significantly reducing provisioning time, automating data collection and improving operational efficiency.
Led the Engineering Department’s technical compliance strategy during ISO 9001:2015 recertification, ensuring 100% audit success with zero non-conformities.
Recommended and led migration of core services (Wireless LAN Controllers and RADIUS authentication servers) from on-premise infrastructure to AWS cloud, strengthening disaster recovery posture, scalability, and operational resilience.

Conducted advanced network traffic analysis using tools such as Wireshark and TCPdump to identify anomalies, troubleshoot connectivity issues, and analyze packet-level data.
Provided technical assistance and end-user support for hardware, software, and network-related issues, enhancing system usability and operational efficiency.
Installed, configured, and maintained servers, routers, switches, and endpoint devices. Managed patch cycles, implemented endpoint protection measures, and performed routine system backups to ensure operational stability and security compliance.
Utilized AWS VPC Flow Logs and AWS CloudTrail to analyze both on-premises and cloud network traffic, identifying communication flows, monitoring performance metrics, and detecting potential security gaps.
Gained practical experience in vulnerability assessment using Qualys and conducted log and SIEM analysis through Splunk to monitor security events and investigate incidents.
Explored security audit methodologies and compliance assessment practices, including reviewing IAM policies, encryption standards, and security group configurations to strengthen cloud infrastructure security and align with best practices.
Received training in designing and delivering cybersecurity awareness programs, including planning and executing simulated phishing campaigns to evaluate organizational security readiness and user awareness levels.

Configured and managed customer network infrastructure including routers, L2/L3 switches, wireless controllers, SIP/VoIP trunks, and access radios, improving network performance, QoS optimization, and service stability.
Designed and implemented graphical network monitoring dashboards with automated outage alerting, reducing downtime by 55% and improving service availability to 98.9%.
Led deployment of a TR-069 Auto-Configuration Server (ACS) to automate large-scale CPE provisioning and lifecycle management, reducing WAN transport costs by over 40% in 2024.
Utilized centralized monitoring tools such as Amazon CloudWatch, SolarWinds Network Performance Monitor, and Nagios to enhance infrastructure visibility across OLTs, routers, switches, radios, and load balancers.
Contributed to the configuration and upgrade of B-RAS and PPPoE servers to strengthen authentication mechanisms and optimize broadband session management.
Supported FTTH network operations across Retail and SME segments, contributing to sustained high-availability infrastructure performance.
Applied ITSM practices to incident logging, SLA tracking, and cross-team coordination, supporting MTTR and uptime targets.

Monitored system and network performance using SolarWinds and PRTG, identified anomalies, and assisted in implementing solutions to reduce downtime.
Assisted in maintaining a multi-vendor network environment, including Cisco, Mikrotik, Ubiquiti, equipment, ensuring smooth service connectivity.
Supported deployment and maintenance of SSH VPN gateways, and hybrid connectivity setups to facilitate secure and efficient data exchange between remote user subscribers.
Configured Mikrotik Captive Portal for client networks, including setting access durations, user authentication, and secure wireless network configurations (WPA2/WPA3).
Managed user accounts, including creating, updating, and suspending accounts as needed.
Assisted with routine server maintenance, backups, and patch updates to ensure system stability.
Documented network changes, incidents, and standard operating procedures to support team knowledge sharing.
Provided first-line troubleshooting support for hardware, software, and connectivity issues

At IP2Air Networks Limited, I served as a Network Administrator and Support Engineer, driving network reliability, service performance, and operational continuity. I managed and optimized critical network infrastructure, including routers, switches, firewalls, and wired and wireless environments, ensuring secure and uninterrupted service delivery.

I proactively identified risks, resolved complex network challenges, and implemented improvements that reduced downtime and enhanced user experience. By combining technical expertise with a strong service-focused mindset, I helped maintain high availability while supporting business objectives.

I also contributed to infrastructure planning and solution deployment, providing recommendations that improved scalability, performance, and customer satisfaction. My role extended beyond technical support to influencing decisions that strengthened operational efficiency and service quality.