As a Senior Data Scientist, you will design models that measure and predict customer behavior, lifetime value, and marketplace health. Your work will power decision-making across multiple business verticals and help us build systems that deliver better product experiences and business outcomes. Responsibilities include tackling complex problems, delivering insights to drive product strategy, partnering with various teams, owning data workflows end-to-end, building and scaling models, and communicating findings clearly. Personal and professional growth is a priority, supported through development programs, mentorship, and Upwork Belonging Communities.