-Generated an incremental lift of 2.29% in company wide revenue (measured by A/B experiments) by partnering with marketing to implement novel promotion strategies based on individual customer behaviors​​-Guided international TV investments through the design and analysis of quasi experimental methods that allowed for successful measurement of several key metrics throughout the customer funnel-Built an automated, self-serve monthly forecasting model for 14 geos, 2 user types and 5 metrics used by finance to guide long term expectations and goal setting.-Informed free-to-paid strategy via an observational study of cannibalization using causal inference techniques that showed that free courses could be beneficial up to a point and were often correlated with higher LTV- Contributed to the successful rebrand of the organization by serving as the lead DS on the project and conducting A/B tests in the areas of: font, color palettes and site speed

-Built a daily revenue forecasting model that incorporated marketing activity and allowed the marketing team to proactively adjust spend/ promotion/ pricing in order to achieve goals. -Optimized promotional activity through the design of experiments on promotional timing, duration, spacing and targeting -Lead and grew a weekly performance review for company wide leadership from an attendance of <10 to 50+-Drove data driven decision making through the development of several of the most widely used dashboards within the organization on topics ranging from: revenue, conversion, paid acquisition, pricing, promotions, & retention

-Advanced nascent pricing models by identifying substitute courses via hierarchical clustering methods on search activity in order to incorporate cross price elasticity effects into course pricing-Unlocked revenue growth in several key markets after conducting price level tests that drove a price localization strategy-Proved that less promotions could be more successful using regression based difference-in-differences methods on countries in which different promotional frequencies were implemented