Jeff Carpenter works in developer relations at DataStax. He was previously a systems architect for Choice Hotels International, and has 20 years of experience in the hospitality and defense industries. Jeff's interests include SOA/microservices, architecting large-scale systems, and data architecture. He has worked on projects ranging from complex battle planning systems to a cloud-based hotel reservation system. Jeff is passionate about disruptive projects that change industries, mentoring architects and developers, and the next challenge.

Eben Hewitt is the CTO and Chief Architect at Sabre Hospitality where he is responsible for the technology strategy and for designing large-scale, mission-critical systems and leading teams to build them. He has served as CTO at one of the world's largest hotel companies and CIO of O'Reilly Media. He has been a consultant to Warburg Pincus and others on distributed data and a frequent speaker at international conferences. He is the author of several books, including Technology Strategy Patterns (2018), Cassandra: The Definitive Guide, Java SOA Cookbook, and several other books on architecture, web and software development, including Semantic Software Design (2019). He's won several innovation awards for his software design work.