Dan Lachance has worked in various IT roles since 1993, including as a technical trainer with Global Knowledge, programmer, consultant, as well as an IT tech author and editor for McGraw-Hill and Wiley Publishing.
He has held and still holds IT certifications in Linux, Novell, Lotus, CompTIA, and Microsoft. His specialities over the years have included networking, IT security, cloud solutions, Linux management, and configuration and troubleshooting across a wide array of Microsoft products.
David Castillo is a learning and development professional with 15 years of experience. He has extensive experience in many areas of Amazon Web Services.