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John Holthaus has an extensive work experience in database administration and development. John currently holds the position of Principal Database Administrator at Veradigm®, a role they also previously held at Pulse8 Inc. From 2015 to 2018, they worked as a Business Intelligence Developer and SQL DBA at Wendy's Quality Supply Chain Cooperative, where they established data pipelines and processes for supply chain data management. Prior to that, they worked as a Business Intelligence Developer at Republic Bank and as an SQL Database Administrator at Southern Graphic Systems. John also has experience as an SQL Database Administrator and Systems Developer at UFPC, a Systems Analyst at Trover Solutions, and a Database Engineer at LandmarkTrade and ABCPoint.com. John started their career as a Consultant, Programmer/Analyst at Romac International.

John Holthaus completed their Bachelor of Science (B.S.) degree in Electrical Engineering from the University of Louisville between 1986 and 1990. In 2014 and 2015, they obtained a Data Science Certification from the Johns Hopkins Bloomberg School of Public Health. John also holds several additional certifications, including statistical inference, reproducible research, exploratory data analysis, getting and cleaning data, R programming, and the data scientist's toolbox, all obtained with distinction from Coursera Verified Certificates. Additionally, they have certifications in hands-on essentials related to data lake, data applications, data sharing, and data warehouse from Snowflake, obtained in 2023.