About me
John has designed and implemented computing systems ranging from high-speed industrial controllers to distributed IT systems focusing on security and high availability. A key player in many IT projects for industry leaders, including Microsoft, the UK Government and multi-nationals that require optimized IT systems. Developed technical training courses published worldwide, co-authored a highly successful Microsoft Active Directory Internals book, and presented regularly at major international conferences, including TechEd, IT Forum, Ignite, NIC, Techorama, Azure Lowlands, ESPC, WPNinja and more. John runs a deep-dive Microsoft Entra Identity masterclass, https://learn.xtseminars.co.uk. He produces videos for his YouTube channel, www.youtube.com/@john_craddock. John can be booked for speaking engagements through XTSeminars. www.xtseminars.co.uk