Dan started programming decades ago on a Spectrum clone and started his professional programming career in 2003. Eager to learn, Dan moved to Netherlands to study at the University of Groningen. Now, Dan is proud of his PhD thesis on decision making and knowledge acquisition in software architecture, and about a dozen publications with hundreds of citations. Dan used Microsoft technologies for many years, but migrated gradually to Python, Linux and AWS, to learn more of the computing world. Cur... morerently, Dan is a full-time Python programmer at the Romania office of a global company in the research domain.

Mariah Weatherford is a data scientist for a molecular diagnostic company. Trained as a statistician with a background in economics, data is the driver of all her work. Her primary tool for wrangling, modeling and visualizing data is R.

Okan Bulut is an Associate Professor of Educational Measurement, Psychometrics, and Data Science and an active member of the Centre for Research in Applied Measurement and Evaluation at the University of Alberta. He teaches undergraduate-level and graduate-level courses on psychometrics, statistics, data mining, and programming. Okan's current research interests include statistical programming, interactive data visualization, computer based testing, and technology-enhanced assessments. Okan is a... more passionate R user that constantly benefits from R in both his research projects and the courses he has taught. In addition, Okan has authored three packages, profileR, hemp, and eirm, in R. In his spare time, Okan enjoys visiting mountains, hiking trails, and nature photography.

Emilee has an M.S. in Business Statistics from Mercer University and currently works as a Data Scientist. She has worked with data for 5+ years, spending the majority of her time in finance. She created marketing solutions at an investment management firm, consulted with lenders on risk models at a credit bureau, and currently works in consumer banking. Through her love of data, she has always had a passion for teaching. Prior to grad school, she worked as a teacher and enjoys simplifying comple... morex topics and helping students learn.