Hiring: (USA) Principal, Data Scientist Company: Walmart Connect Location: Sunnyvale, CA Job Posted Time: 2026-09-16 22:48:02 Employment Type: Full-time Target Skills & Keywords : Accessibility, BigQuery, Data Pipeline, Machine Learning, Python, R, SQL, Scala, Spark, TensorFlow, WCAG, scikit-learn About the job Experience: •5+ years in data science or quantitative research , ads industry experience preferred Required Skills: •Design and implement large-scale causal inference methodologies to measure the true incremental lift of advertising across campaigns, channels, and segments •Establish evaluation frameworks, exit criteria, and solution readiness standards causal inference methodologies, grounding approach in hypotheses and data validations •Author high-quality technical design documents and whitepapers; present to senior leadership •Define the science roadmap for incrementality and causal measurement; prioritize the highest-leverage problems and make principled trade-offs •Develop event-grain incrementality models (Uplift DNN) to power ads bidding optimization decisions •Partner with engineers to design data pipelines and schema that meet the precision requirements of causal measurement at scale •Mentor senior and mid-level scientists Qualifications: •PhD or Master's in Statistics, Economics, Econometrics, Computer Science, or a related quantitative field — PhD strongly preferred •Deep, specialized expertise in causal inference and/or incrementality-based optimization — Randomized control trials, PIE model, instrumental variables, uplift DNN, regression discontinuity and related methods •Strong command of experiment design at scale — power analysis, variance reduction, interference and spillover handling, and bias correction •Proficiency in Python and SQL for large-scale data analysis and experience with distributed data platforms (Spark, BigQuery, or equivalent) •Strong statistical foundations and machine learning knowledge •Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms. •For Information About Benefits And Eligibility, See One. •Sunnyvale, California US-11658: The annual salary range for this position is $143,000.00 - $286,000.00 •Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications. •5 years' experience in an analytics related field. Option 2: Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 3 years' experience in an analytics related field. Option 3: 7 years' experience in an analytics or related field Compensation: •$143,000 - $286,000 / year Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!