Keith discovered a love for computers and networking in 1984 and began his IT career in 1985. He specializes in networking and security.

Knox brings a wealth of data analysis and visualization experience to CBT Nuggets. Knox started off as a CBT Nuggets learner, became a mentor in our Learner Community, and is now a trainer. Having benefited from the CBT Nuggets Learning Experience firsthand, Knox creates training that connects with learners.

Jeff Kish has over 15 years of IT experience, focusing mainly on core infrastructure and data center technologies. He holds a number of Cisco certifications, including CCIEs in Routing and Switching and Data Center. He also focuses on network programmability and software-defined networking.

James got his start in IT by becoming the de facto IT professional for a nonprofit organization — and the rest was history. He has over three decades of IT experience.

When it comes to cybersecurity, you’d be hard pressed to find an instructor with the experience and knowledge that Bob Salmans brings to his training.

Simona has a passion for everything Microsoft Office-related. In addition to being a Microsoft Certified Trainer, she is also a certified ScrumMaster.

Garth specializes in Google Cloud Platform, Microsoft SQL Server, and programming. He is a Google Developer Expert.

A former CBT Nuggets learner, John used online IT training to help him build a diverse skill set, which includes networking and cybersecurity.

John’s path to becoming a trainer started when he found himself helping people more and more at work with tech-related issues.

Shawn is an associate editor at Linux Journal. He has been teaching IT for more than a decade.

All it took was the command prompt in Windows 95 to get Lalo hooked on technology. Nowadays, his passion is Cisco collaboration technology.

Kelvin brings a wealth of networking and systems administration knowledge to CBT Nuggets. More recently, he has focused on honing his automation and DevOps skills.

Jonathan Barrios brings over a decade of teaching experience to deliver cutting-edge programming, data analytics, data science, and machine learning skills to CBT Nuggets.

Erik brings over 20 years of IT experience to his training, with a focus on cybersecurity and digital forensics.

A former full-stack developer, Shaun Wassell brings a wealth of web development and programming experience to his training.

Scott got started with IT in his early teens when his parents bought him a TRS-80 Color Computer 2 from Radio Shack. Since then, he’s spent thirty years in corporate IT management and leadership roles, earned numerous AWS and PMI certifications, and created training content for A Cloud Guru.

Jeremy is a well-known author, trainer, and speaker. He specializes in Cisco, Microsoft, and AWS technologies.

Bart Castle brings more than a decade of cloud computing experience to CBT Nuggets. On top of holding all the core Amazon Web Services certifications, he’s one of the few instructors worldwide to earn AWS Authorized Instructor Champion status.

Jacob has spent roughly twenty years building a skill set that includes networking technologies, server management elements, database and web design and implementation, and yes, even a little scripting and coding from time to time. He's taught in live classrooms, seminar halls, via webcams, and has been recorded for posterity.

Ben began programming when he was just 15 years old. A Google Developer Expert, he specializes in Google Cloud Platform and programming.

Chuck brings recent industry networking and collaboration experience to his training and holds Cisco CCNA Routing & Switching, Voice, and Security+ certifications. He started a popular YouTube channel, NetworkChuck, in 2014 that guides IT pros in their careers.

Trevor has two decades of experience in the software industry, and holds numerous certifications. Trevor was awarded Microsoft MVP from 2014 through 2017. His other areas of expertise include AWS, Azure, MySQL, GitHub, Docker, Kubernetes, and PowerShell automation.

An IT pro for more than two decades, David also brings a wealth of teaching experience to CBT Nuggets, having taught at networking bootcamps.