Doug Ellisen is an experienced Oracle Database Administrator currently working at Aviation Technical Services since May 2023. Previously, Ellisen held various significant roles, including Domain Architect in Business Intelligence at T-Mobile, where the focus was on transitioning chaotic presentation formats to professional models, and Architect-Enterprise at Savers, Inc., developing comprehensive business architecture aligned with corporate strategies. Additional experience includes IT Architect at Clearwire, managing Oracle Fusion Middleware, and serving as a Senior Oracle Database Administrator overseeing major upgrades of Oracle Applications. Ellisen has also worked as a Business Apps Infrastructure Manager at Noetix Corporation and has a background in database administration and business analysis from Nike and Seattle Pacific University. Ellisen is also an author, having published "The Long Shadow." Educational qualifications include a BS in History from Seattle Pacific University and further studies at Biola University.