Network Engineer Security

Joshua Mabonga

647-***-**** **************@*****.***

Senior Network Engineer

Accomplished Network Engineer with extensive experience in designing, implementing, and maintaining large-scale network and cloud infrastructures. Expertise in managing complex enterprise and data center systems, cloud-based platforms, and deploying CCaaS and UCaaS solutions. Skilled in routing and switching, routing protocols, switching techniques, wireless networks, voice networks, network monitoring and network security. Certified in CCNP-ENT, CCDP, GCP, AWS, Network and Information security, ITILv3, Process Improvement and Lean Six Sigma, with ongoing CCIE-ENT certification. Proven leadership in delivering high-impact solutions.

Key Skills

Network Architecture Technology Solutions Cybersecurity solutions Network security Wireless networking Network Testing Problem Solving Team Leadership Project Management switching technologies Automation Voice networking

Technical Skills

Telephony Solutions & Cloud Platforms: Expertise in designing and deploying telephony-as-a-service solutions across platforms like Avaya, NICE, Five9, RingCentral, and Amazon Connect.

Architectural Evaluation & Design: Skilled in evaluating and designing telephony and cloud systems, including defining non-functional requirements.

Cloud Technologies: Proficient in AWS, GCP, and Azure cloud deployments, with experience automating infrastructure using Python.

Automation & Infrastructure Management: Experienced in automating deployments using Ansible and Terraform, with expertise in managing infrastructure and configuration.

Professional Experience

Bell Canada, Toronto, ON December 2018 – Present

Network Cloud Architect November 2021 – Present

Led the design and implementation of Network cloud integration systems for Bell Canada, ensuring seamless system integration and compliance with business and security requirements. Spearheaded the automation of application and infrastructure deployments using Ansible and Terraform, improving efficiency across multi-platform environments.

Transform Bell’s network services by integrating and automating public and private cloud solutions, enhancing overall service efficiency and scalability.

Lead cloud architecture and design decisions, collaborating with enterprise architects, product managers, and engineers to implement best practices and optimize cloud infrastructure.

Improve operational processes by implementing innovative technical solutions and applying DevOps practices, resulting in more streamlined and efficient operations.

Spearhead cloud migration initiatives, ensuring seamless integration of cloud technologies and achieving optimal performance across network services.

Increase team efficiency by applying design thinking to develop a skills matrix and realign team roles based on individual strengths, leading to improved productivity and performance.

Network automation with CI/CD pipelines

Network and Security Support Engineer December 2018 - November 2021

Implemented an efficient ticket troubleshooting system that reduced SLA response times by 50% and decreased operational expenses by $16,000 per month through streamlined troubleshooting and a reduced need for additional technicians.

Supported external customer connections, including T1 circuits, DSL circuits, MPLS VPNs, IPVPN circuits, and SD-WAN (Viptella), ensuring reliable and secure data transmission.

Provided comprehensive support for Bell's enterprise network, including advanced switching (LAN, Spanning Tree, HSRP, VRRP, VSS, vPC, VDC) and routing (OSPF, EIGRP, BGP).

Managed network security using Checkpoint (R75, R77, R80), Cisco Firepower, Juniper SRX, and Fortigate firewalls, ensuring robust protection across the network.

Utilized F5 load balancers for network traffic management and load balancing, optimizing performance across multiple platforms.

Monitored the enterprise wireless network (Aruba Wireless) and managed network design using Microsoft Visio, contributing to system upgrades and documentation.

Kenya Airways, Nairobi – Kenya April 2011 - June 2018

Team Leader Network and Communications.

Led a team of engineers in designing and implementing a highly available network for Kenya Airways' Main HQ and outstations, increasing network availability from 62% to 98%. Successfully migrated the company’s contact center from analog to a cloud-based IP solution, resulting in $60,000 in CAPEX and $24,000 in OPEX savings annually. Additionally, spearheaded the migration of a wireless network from an on-prem Cisco solution to a cloud-based Ruckus system, saving the company $40,000 in CAPEX.

Coordinated the technical implementation and support for global network infrastructure, including radios, wireless communications (HF, UHF/VHF, Wireless LANs, WANs), across all locations.

Led the upgrade and migration of network equipment, improving performance and scalability with Cisco Prime, and implementing structured cabling for safe communication infrastructure.

Led redesign of a data center network using Cisco Nexus 7000 switches, ASR1001-X routers, and 3750 switches, incorporating OTV and vPC configurations.

Conducted unified wireless LAN implementations using Cisco Mesh Networks and performed wireless site surveys with AirMagnetPro for optimal network performance.

Analyzed and implemented integrated network solutions across departments, tailoring communication systems for converged network operations.

Oversaw network monitoring using tools like PRTG, Nagios, iPerf, and SolarWinds, supporting services like IP, IP VPN, IPSec, MPLS, and BGP.

Monitored and maintained network security using Checkpoint Firewalls (R75, R77), ensuring compliance with security protocols and standards.

Managed the Network Operations budget, planning and coordinating both existing and new network projects to optimize costs and resource allocation.

Education

Master of Management, Innovation and Entrepreneurship 2023

Smith School of Business at Queen’s University, Kingston, Ontario

Bachelor of Science in Electronics and Computer Engineering

Jomo Kenyatta University of Agriculture and Technology, Kenya

Certifications

CCNP-ENT CCDP GCP AWS CCNA Security Lean Six Sigma ITILv3 CCIE-ENT

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