Carol Mcdonald is a solutions architect at MapR focusing on big data, Apache HBase, Apache Drill, Apache Spark, and machine learning in healthcare, finance, and telecom. Previously, Carol worked as a Technology Evangelist for Sun, an architect/developer on: a large health information exchange, a large loan application for a leading bank, pharmaceutical applications for Roche, telecom applications for HP, OSI messaging applications for IBM, and sigint applications for the NSA. Carol holds an MS in computer science from the University of Tennessee and a BS in geology from Vanderbilt University and is an O’Reilly Certified Spark Developer and Sun Certified Java Architect and Java Programmer. Carol is fluent in French and German.