[Remote] Senior Marketing Decision Scientist II

Note: The job is a remote job and is open to candidates in USA. Instacart is transforming the grocery industry by providing essential services that customers rely on. As a Senior Marketing Decision Scientist II, you will shape marketing performance measurement and optimization, collaborating with various teams to inform investment decisions and accelerate customer acquisition and retention.ResponsibilitiesOwn the end-to-end marketing measurement strategy across paid search, paid social, display, affiliates, CTV, and lifecycle/CRM, unifying MMM, MTA, and incrementality testing to guide channel and portfolio-level investmentDesign, launch, and analyze experiments (e.g., geo tests, PSA tests, holdouts) and causal inference studies that quantify lift, inform targeting, and establish best practices for decision-making under uncertaintyBuild and productionize predictive models (e.g., LTV, churn/propensity, audience response, budget allocation) using SQL and Python or R, partnering with data engineering to automate pipelines and ensure data qualityCreate executive-ready dashboards and narratives in tools like Looker or Mode that track KPIs, explain performance drivers, and translate insights into clear, prioritized recommendationsPartner with Strategic Finance and Marketing leadership on forecasting, scenario planning, and quarterly planning processes; influence roadmaps and present findings to VP+ stakeholdersPrioritize ruthlessly in a dynamic environment, managing multiple concurrent projects and elevating the team’s analytical bar through peer reviews, documentation, and mentorshipSkills6+ years of experience in marketing analytics or data science within technology, e-commerce, marketplace, or consumer subscription businessesAdvanced proficiency in SQL and in either Python or R for data manipulation, statistical analysis, and modelingHands-on experience designing and analyzing marketing experiments (e.g., A/B tests, geo experiments, holdouts) and applying causal inference techniques to estimate incrementalityProven track record implementing at least one marketing measurement approach (e.g., MMM, MTA, or structured incrementality testing) to inform budget allocation for multi-million-dollar programsExperience building business-facing dashboards and self-serve tools in Looker, Tableau, or ModeExperience working with modern data warehouses (e.g., Snowflake, BigQuery, or Redshift) and version control (Git)Demonstrated ability to translate ambiguous business questions into analytical roadmaps and to communicate clear, actionable recommendations to non-technical and executive audiencesBachelor's degree in a quantitative field (e.g., Statistics, Economics, Computer Science, Mathematics, Engineering) or equivalent practical experience8+ years of relevant experience; advanced degree (MS/PhD) in a quantitative disciplineExperience building, validating, and operationalizing Marketing Mix Models (preferably Bayesian approaches using PyMC, Stan, or similar) and triangulating MMM with experiment resultsFamiliarity with privacy-conscious measurement (e.g., conversion modeling, SKAN, clean rooms such as Amazon Marketing Cloud or Ads Data Hub) and ad platform APIsExperience with analytics engineering and pipeline tooling (e.g., dbt, Airflow) and strong data QA practicesBackground in lifecycle/CRM analytics (e.g., uplift modeling, audience selection, message experimentation) and LTV forecastingExposure to experimentation platforms and feature flagging (e.g., Optimizely or internal frameworks) and to ML applications for bidding, pacing, and creative optimizationExperience mentoring peers and elevating analytical standards through code reviews, reproducible research, and documentationBenefitsInstacart is a Flex First teamOur employees have the flexibility to choose where they do their best work—whether it’s from home, an office, or your favorite coffee shop—while staying connected and building community through regular in-person events.This role is eligible for a new hire equity grant as well as annual refresh grantsCompany OverviewInstacart is an online grocery platform that offers same-day delivery and pickup services for retailers and consumers. It was founded in 2012, and is headquartered in San Francisco, California, USA, with a workforce of 1001-5000 employees. Its website is https://www.instacart.com.