John has been an Oracle DBA and infrastructure architect for nearly 15 years. He became interested in Exadata since its inception and launched Centroid's Exadata Center of Excellence in 2011. Over the last several years, John has focused largely on Exadata and engineered systems education, training, implementation, optimization, pre-sales and post-sales technical support for Exadata environments. He currently directs Centroid's infrastructure Practice. John has presented at RMOUG, Collaborate, Oracle ExaDays, and the Enkitec E4 conference.