The Marketing Data Scientist will create mathematical models to understand user value and marketing campaign profitability. They will optimize data processing workflows, drive operational and campaign improvements, and create dashboards using tools like Shiny, R, or Tableau. The role involves setting team priorities, working efficiently as part of the team, and requires strong data science skills, reporting abilities, attention to detail, and excellent communication skills. The role also involves using ML for complex modeling and experience in data instrumentation and collection.