Hire the Best Network Security Engineers
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Expert Cisco CCIE Network Engineer | Network Design, OT Security, SD-WAN, Troubleshooting & Training I am a Cisco CCIE-certified network engineer with over 15 years of experience delivering high-quality solutions in network design, OT security, troubleshooting, SD-WAN, and training. With extensive expertise in Cisco Routing & Switching (R&S), Cisco Security Stack, Meraki, Fortinet, and Claroty products, I support businesses in creating stable, secure, and scalable network infrastructures tailored to their unique needs, including operational technology (OT) environments. My core competencies include network architecture and validation, OT security deployment, SD-WAN implementation, project management, and complex troubleshooting across various industries, from enterprise to critical infrastructure. As a business owner and network instructor, I excel in translating advanced technical concepts into actionable solutions, empowering teams through hands-on guidance. Key Skills: Cisco CCIE, CCNP, CCNA certified Network Security, OT Security (Claroty), SD-WAN, Infrastructure Design, and Troubleshooting Meraki, Cisco R&S, Cisco Security Stack, and Fortinet Solutions Network and OT Security Training, Consulting, and Implementation I look forward to collaborating on projects where I can apply my specialized expertise to help you reach your network and OT security goals. Let’s connect and build a robust, future-ready infrastructure together!

Hello, my name is Ahmed Alzaeem. I am a seasoned Cisco ISP Network Engineer and Tier 1 ISP NOC Engineer with over +15 years of hands-on experience in designing, building, and managing complex network infrastructures. My expertise spans Asterisk PBX development, VPN architecture, Wi-Fi network operations, Squid Cache proxy solutions, and residential proxy service development for multiple service providers worldwide. As a network consultant, I specialize in the design and implementation of large-scale, high-availability networks, with deep proficiency across IPv4 and IPv6 protocols, internet optimization, and Quality of Service (QoS) engineering. I am also an experienced Windows Server and Linux systems administrator, Mikrotik router specialist, and network security consultant. In 2026, I have expanded my expertise to embrace Artificial Intelligence , integrating AI-driven network monitoring, threat detection, and intelligent traffic analysis into modern infrastructure solutions. I stay ahead of evolving cyber threats by applying cutting-edge security frameworks alongside traditional and next-generation network defense strategies. I consistently deliver on client expectations and pride myself on building strong, lasting professional relationships.

I've been working on IT infrastructure especially in Network and Security over 8 years. I am an expert in all Cisco, HP, Aruba, Huawei and Unifi Devices, VMware Virtualization, Microsoft products, Fortinet, Paloalto, Sophos, and Cyberoam Firewalls. I am Cisco CCNA-CCNP, Paloalto PCNSE, Forinet NSE-1, NSE-2, NSE-3, NSE-4 and Aruba ClearPass ACCA certified.

I'm a network and systems security engineer with programming skills. I have experience in enterprise networks of large organizations, especially in finance sector. I have been involved in and often lead software projects for network and infrastructure security. I can help you with: Designing and configuring your network/infrastructure with emphasis on security (Linux, Windows, Docker, Virtualization, NGINX etc.) Solving problems about your existing network/infrastructure Accomplishing and automating any task with Python