Robert McMillen started his career as an IT administrator for a manufacturing company after earning his CompTIA A+. He quickly learned how to fix and troubleshoot desktops and laptops, but his real passions were networking and server administration. Shortly after, he earned his first MCSE and Cisco CCNA and has continued with various certifications over the years (now over 50). He earned a Microsoft Certified Trainer certification and seven MCSEs. He started a successful consulting company in 2001 and eventually sold it in 2017 to focus on teaching networking and security in college and being a video and book author. Some interesting jobs he’s performed include restoring the Enron emails for the Justice Department, training troops headed to Iraq on network security, and managing a billion dollar merger of Cisco network and Microsoft technologies.