Senior Marketing Decision Scientist II

ABOUT THE ROLE We're seeking a highly skilled Senior Marketing Decision Scientist II to join our Marketing Data Science and Analytics team at Instacart. As a key member of this team, you will play a critical role in shaping our marketing measurement strategy, forecasting, and optimization across various channels. Your expertise will help inform multi-million-dollar investment decisions, drive customer acquisition and retention, and accelerate business growth. WHAT YOU'LL DO As a Senior Marketing Decision Scientist II, you will be responsible for: - Developing and implementing end-to-end marketing measurement strategies across paid search, paid social, display, affiliates, CTV, and lifecycle/CRM channels. - Designing, launching, and analyzing experiments and causal inference studies to quantify lift, inform targeting, and establish best practices for decision-making under uncertainty. - Building and productionizing predictive models using SQL and Python or R, partnering with data engineering to automate pipelines and ensure data quality. - Creating executive-ready dashboards and narratives in tools like Looker or Mode that track KPIs, explain performance drivers, and translate insights into clear, prioritized recommendations. - Partnering with Strategic Finance and Marketing leadership on forecasting, scenario planning, and quarterly planning processes, influencing roadmaps and presenting findings to VP+ stakeholders. - Prioritizing ruthlessly in a dynamic environment, managing multiple concurrent projects, and elevating the team's analytical bar through peer reviews, documentation, and mentorship. WHAT YOU'LL NEED To succeed in this role, you will need: - 6+ years of experience in marketing analytics or data science within technology, e-commerce, marketplace, or consumer subscription businesses. - Advanced proficiency in SQL and in either Python or R for data manipulation, statistical analysis, and modeling. - Hands-on experience designing and analyzing marketing experiments and applying causal inference techniques to estimate incrementality. - Proven track record implementing at least one marketing measurement approach to inform budget allocation for multi-million-dollar programs. - Experience building business-facing dashboards and self-serve tools in Looker, Tableau, or Mode. - Experience working with modern data warehouses and version control. - Demonstrated ability to translate ambiguous business questions into analytical roadmaps and communicate clear, actionable recommendations to non-technical and executive audiences. - Bachelor's degree in a quantitative field or equivalent practical experience. WHY REMOTE At Instacart, we value flexibility and work in a Flex First environment. This means you will have the autonomy to choose where you do your best work, whether that's from home, an office, or a coffee shop, while staying connected and building community through regular in-person events. BENEFITS - Flexible work environment - Competitive salary - Comprehensive health plan - Parental leave - Education stipend - Life insurance - Equipment stipend - Opportunities for professional growth and development