Sr. Data Scientist, Marketing

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here. Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. We are looking for a senior data scientist to join our marketing org. As a senior data scientist, you introduce greater scientific rigor into the marketing measurement and optimization processes to shape Pinterest’s advertiser and revenue growth and marketing strategy. The results of your work will influence and drive strategic decisions for the company - identify investment opportunities to drive growth, uncover insights into revenue performance and advertiser behavior, and establish metrics to expand and sustain our advertiser base. You will collaborate on a wide array of business problems with a diverse set of cross-functional partners across Marketing, Product, Engineering, Design, Research, Product Analytics, Data Engineering and others. This role sits within the marketing data science and analytics team and would be supporting business marketing efforts aimed at driving advertiser and revenue growth for Pinterest. What you’ll do • Conduct deep strategic analyses to answer critical marketing ecosystem questions, including how to leverage performance marketing programs and other SMB-focused initiatives to efficiently grow Pinterest’s advertiser base and revenue, and how to quantify marketing’s incremental business impact & ROI. • Build statistical and machine learning models from scratch, including advertiser propensity, lifetime value (LTV), budgeting, forecasting, and retention models to inform critical marketing investments. • Lead and advance advertiser geo-testing capabilities, develop new incrementality-testing frameworks, and apply causal inference and experimental methods to measure the incremental impact of marketing activities. • Build scalable experimentation capabilities and tools to evaluate business marketing investments, establish experimentation best practices. • Lead the design, implementation, and continuous improvement of advanced measurement frameworks and statistical models to quantify how marketing investments drive advertiser growth and revenue across channels, including paid media, email, in-product experiences, organic social, webinars, e-learning platforms, and in-person events. • Analyze advertiser behavior across the end-to-end journey to identify the factors that influence acquisition, conversion, retention, and churn. • Address complex business questions, including how to improve marketing ROI, optimize budget allocation, measure impact across mature and emerging markets, and identify opportunities to grow Pinterest’s advertiser base and revenue. • Answer critical business questions and provide actionable recommendations on how to improve marketing ROI, optimize budget allocation, measure marketing impact across mature and emerging markets, and identify opportunities to accelerate advertiser and revenue growth. • Translate complex analytical findings into clear insights and actionable recommendations for technical and non-technical stakeholders, including senior leadership. • Design, maintain, and promote dashboards and automated reporting solutions that provide stakeholders with self-service, AI-powered decision-making capabilities. • Build and optimize ETL pipelines to automate reporting and support strategic analyses, experimentation, and feature engineering for analytical models. • Collaborate with cross-functional partners across Marketing, Product, Engineering, Analytics, Data Engineering, and other teams to solve a broad range of business and product challenges. What we’re looking for • 6+ years of combined post-graduate academic and industry experience applying scientific methods to solve real-world problems. • Masters degree in a quantitative field such as mathematics, statistics, computer science or engineering. • Excellent communication skills, able to lead initiatives and communicate findings to the leadership and cross-functional teams, especially non-technical audiences. Explains work and thought processes clearly and concisely. • Hands-on experiences with building marketing measurement solutions to quantify the business impact of marketing tactics and investments. • Strong background in statistics and quantitative analysis, with experience in applying advanced statistical techniques to real-world problems. • Expertise in at least one scripting language (ideall