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David Jayatillake has an extensive work experience with various companies in roles ranging from Co-Founder & CEO to Investor, Head of Data, and Chief Product & Strategy Officer. David has worked at companies such as Delphi Labs, Metaplane, Lightdash, Gravity, Avora, Ruby Labs, Lyst, Elevate Credit International Limited, Worldpay, and Ocado Group. Throughout their career, David has demonstrated expertise in areas such as data analysis, business intelligence, data modeling, and predictive model development. David has also been involved in projects related to profitability analysis, cost allocation modeling, and pricing strategy. David has utilized tools such as Tableau, Power BI, Python, and Snowflake for data visualization and large-scale dataset manipulation. David'swork experience reflects a strong track record of leadership and contributing to the success of various companies.

David Jayatillake completed their undergraduate education from 2006 to 2009 at King's College London, where they earned a Bachelor of Science degree in Mathematics with Management and Finance. Following that, from 2011 to 2014, they studied at The Chartered Institute of Management Accountants, acquiring an ACMA degree in Accounting and Business/Management.

In terms of additional certifications, David obtained the DataRobot Essentials certification from DataRobot in June 2018. David also completed the Data Scientist with Python course from DataCamp in September 2017. David has additionally completed various courses in R programming from DataCamp, including Cleaning Data in R, Data Manipulation in R with dplyr, Importing Data in R (Part 1), Intermediate R, Intermediate R - Practice, Introduction to R, and Writing Functions in R. However, the specific months and years of completion for these courses are not provided.