William Constantine is a Senior Data Scientist at Xyonix at xyonix. He possess expertise in r, machine learning, data mining, data analysis, statistics and 29 more skills. Colleagues describe him as "Bill is a passionate, full-stack data scientist: he can go from concept to deployed machine learning pipeline, switching from creative, exploratory data analysis to solid coding standards and production-quality product features. He leverages his Ph.D,-level knwoledge of time series analysis as well as his experience with modern, large scale computing frameworks. Most of all, Bill knows how to communicate complex concepts at the right level of sophistication; he can write academic papers as well as produce excecutive-level visualizations. In fact his skill in communicating with data visualizations is two-sigma above average, even for data scientist. Finally, Bill is very personable, has a great sense of humor, and brings a healthy dose of real-life experiences to his daily professional endeavors. I;ve known Bill for almost 20 years and I know that he will be impactful in any organization that will be so lucky to employ him.", "Working with Bill was exactly what a professional relationship should be. Bill was excellent at conveying information and knowledge, and ensuring that those he worked with had what was needed to get the job done. His extensive knowledge of the R language and statistics, combined with a great understanding of what an end user would need and good software development principles, was a great asset for the extremely rapid development of rock solid code and product by our team. I highly recommend Bill; he displays a solid work ethic, character and is simply fun to work with.", and "This recommendation is based on my cooperation with Bill at one of the largest consulting projects Insightful ever did. I was project manager at the time. I can recommend Bill as a very competent software engineer and statistician who substantially helped us at the beginning to get the implementation work needed done. Bill adjusted very quickly to the needs of the project and was great to have in my team."