David Biggers, Senior Security Instructor, has been a professional IT instructor for the past four years for the US Army. He teaches a broad range of certification courses ranging from CompTIA, Microsoft to Cisco and EC-Council. Prior to working with the US Army, David worked as a Network Admin and Web Services Manager with KCTCS in Kentucky. He performed multiple jobs being on the IT team. Network Administration, System Administration, Blackboard Administration, Web Design and Web Development. Additionally, David taught part time during the evening at the college, where he instructed on Active Directory, Introduction to Computers and Networking. David has 18 years of IT experience, 17 professional IT certifications and 8 years of teaching experience.
Chris Avants is a Sr. Cisco Instructor and leading consultant for clients throughout the U.S. Chris has over 15 years’ experience as a network engineer and 5 additional years as an instructor. Chris has worked at the service provider/partner level throughout his career, working with national and global clients to solve complex business problems through the use of technology and IT training solutions. Working with Chris, you will see a true industry expert with experience, drive, and patience unparalleled in the industry. Chris began his career with GE Capital IT Solutions at the age of 17. He quickly gained multiple professional-level certifications from Cisco and Microsoft. Chris spent the next decade as a Sr. Network Engineer designing and deploying advanced technology solutions from Cisco Systems, Microsoft, VMARE and more. Originally hired for his unique skillset and experience with APPLE Networking, Chris spent his free time learning new networking technologies and concepts. The time invested quickly paid-off as he earned a coveted Microsoft Certified Systems Engineer certification at the age of 17. He joined an engineering team where he would gain his first hands-on experience with Microsoft Windows & Exchange Server, in addition to Cisco Routers and Switches. By age 18, Chris earned his CCNA and was a leading implementation engineer for GE Capital’s K-12 and Enterprise customer base throughout Texas for the next several years.
Dean R. Bushmiller has had fun for the past 20 years learning and teaching everything he can in technology and security. His consulting experience in accounting systems, inventory control, migrations, and patch management has breathed life into his 12 years in the classroom. Dean is a courseware developer who specializes in the CISSP and security training. He is the lead instructor for Expanding Security and teaches online as his main job. As a non-military person, he is a proud recipient of six mission coins.
Dean has taught more than 1000 classes with a lifetime approval rating of +90% on topics of: CISSP, including: SOX, PCI-DSS, digital rights management, data loss prevention, incident handling, auditing for compliance, penetration testing, patch management, networking, architecture, migration, certification, and administration.
Chrys Thorsen is an experienced IT instructor with over 30 years’ experience in IT. Chrys has over 35 certifications including Cisco CCNP/CCSI, Microsoft MCITP/MCSE/MCT, CISSP and CISA. Chrys is the founder and owner of IT without Borders, a company specializing in high end IT consulting. Over the past 10 years, Chrys has focused on IT certification instruction, quickly becoming a recognized industry leader in a variety of certifications. Chrys specializes in IT auditing and security and is considered a thought leader in both areas.
Joe Wentzel is one of the most highly regarded subject matter experts in IT security, with over 20 years’ experience in IT security. Mr. Wentzel has over 20 certifications ranging from CISM, CISA, CISSP as well as Microsoft & Cisco certifications. Mr. Wentzel started his career as a network administrator for AT&T and over the next 10 years was promoted several times, eventually reaching the position of Director of IT security. After his career at AT&T, Mr. Wentzel opened his own security consulting firm, working with large enterprise clients on security practices and procedures.