Gregor advises CTOs and technology leaders in the transformation of both their organization and technology platform. Riding the Architect Elevator from the engine room to the penthouse, he assures that corporate strategy connects with the technical implementation and vice versa. Gregor held positions as technical director in Google Cloud's Office of the CTO, where he helped customers maximize the value from a cloud-based IT model, and as Chief Architect at Allianz SE, where he oversaw the architecture of a global data center consolidation and deployed the first private cloud software delivery platform. Gregor is known as co-author of the seminal book Enterprise Integration Patterns, which is widely cited as the reference vocabulary for asynchronous messaging solutions. His book 37 Things One Architect Knows About IT Transformation tells stories from the trenches of IT transformation while his articles have been featured in Best Software Writing by Joel Spolsky and 97 Things Every Software Architect Should Know. He is an active member of the IEEE Software advisory board.