Battle-tested engineers, instructors, and certified experts who craft every workbook from real-world experience.
Certified Expert
1
CCIE Enterprise
Principal Network Engineer with 19+ years designing and tuning large-scale enterprise and service provider networks. I've earned my CCIE (#58659) through real-world...
Certified Expert
1
CCNA
With over 15 years of experience in enterprise technology and holding multiple expert-level certifications, I've helped thousands of professionals achieve their certification...
Certified Expert
1
Senior Network Automation Engineer
Senior Network Automation Engineer and NetDevOps Consultant with 12 years of hands-on experience modernising enterprise networks. I've spent over a decade driving CI/CD-powered automation, multi-vendor orchestration, and scalable Infrastructure as Code frameworks for production environments. Every lab scenario in my workbooks reflects real problems I've solved in the field, from Cisco platforms to Python-driven network automation pipelines. My goal: help engineers move beyond CLI work and build the automation skills modern networks demand.
Certified Expert
1
Network Security Engineer
Network and security engineer with 8+ years designing and building large-scale networks across enterprise infrastructure and SOC teams. I've worked on both...
Certified Expert
1
Infrastructure Expert
IT Engineer with 12 years of hands-on experience designing, building, and supporting virtualisation and storage infrastructures. I've worked across enterprise data centres,...
Certified Expert
1
Senior Network Engineer
With over 17 years of hands-on experience in network engineering and IT infrastructure, I have built my expertise through real-world challenges in...
Certified Expert
1
Senior Network Engineer
I'm Mehran Sahebdel - a Senior Network Engineer and instructor with more than seven years of hands-on experience building and operating enterprise-grade...
Certified Expert
Principal Data Center Architect
I am a 𝐋𝐞𝐚𝐝 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐈𝐧𝐬𝐭𝐫𝐮𝐜𝐭𝐨𝐫, 𝐃𝐚𝐭𝐚 𝐂𝐞𝐧𝐭𝐞𝐫 𝐄𝐦𝐮𝐥𝐚𝐭𝐢𝐨𝐧 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭, and 𝐠𝐥𝐨𝐛𝐚𝐥𝐥𝐲 𝐫𝐞𝐜𝐨𝐠𝐧𝐢𝐳𝐞𝐝 𝐬𝐮𝐛𝐣𝐞𝐜𝐭 𝐦𝐚𝐭𝐭𝐞𝐫 𝐞𝐱𝐩𝐞𝐫𝐭 specializing in protocol-level network engineering. My...
Certified Expert
1
CCDE/CCIE
CCIE | Principal Network & Security Architect | AI-Driven Infrastructure | SDN & Data Center | Team Lead & Trainer | Sharing...
Certified Expert
Microsoft Azure & Cloud Systems
I’m an IT and Software Specialist with over 10 years of experience across network infrastructure, systems administration, and cloud-based environments. My work...
Certified Expert
1
CCNA
I create these workbooks to share real-world experience from working in virtualization and backup, gained through hands-on operations, technical support, server administration,...