Principal Data Analyst – Transaction Analytics, Payments

Walmart

Principal Data Analyst focusing on payments analytics within Walmart's eCommerce Decision Science team. Driving data-informed decisions and fostering collaboration across teams.

Posted 5/29/2026full-timeSunnyvale • California • 🇺🇸 United StatesLead💰 $90,000 - $180,000 per yearWebsite

Tech Stack

Tools & technologies

ETLNumpyPandasPythonSQLTableau

About the role

Key responsibilities & impact

Own analytics strategy for Transaction Analytics, establishing scalable measurement frameworks and KPIs.
Drive experimentation strategy for new product features and experiences by designing intelligent, valid experiments using an in-house platform.
Lead complex data mining and exploratory analyses to identify risk patterns, experience gaps, and behavioral trends.
Develop executive-ready dashboards and reporting solutions that provide actionable insights across Transactions cross-functional team.
Partner cross-functionally with Product, Business Strategy, Design, and Engineering teams to translate ambiguous business problems into structured analytical solutions.
Contribute to and optimize lightweight ETL processes, ensuring high data quality, reliability, and governance standards.
Influence senior leaders through compelling storytelling grounded in data.
Raise the analytical bar across the organization by mentoring analysts and defining best practices in data governance, documentation, and experimentation.

Requirements

What you’ll need

5+ years of experience in analytics, data science, or business intelligence within complex, high-scale environments.
Advanced proficiency in Python (pandas, numpy, statistical modeling) and SQL for large-scale data manipulation.
Strong expertise in data mining, exploratory analysis, and statistical thinking.
Demonstrated experience building and scaling data visualization solutions (Tableau, Looker, etc.) for executive audiences.
Strong best-practice knowledge of ETL processes and data pipeline fundamentals.
Proven ability to translate complex datasets into strategic narratives that drive executive decisions.
Experience influencing cross-functional teams without direct authority.
Strong business acumen and comfort operating in ambiguity.

Benefits

Comp & perks

Health benefits include medical, vision and dental coverage.
Financial benefits include 401(k), stock purchase, and company-paid life insurance.
Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting.
Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.
Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

analyticsdata sciencebusiness intelligencePythonSQLdata miningexploratory analysisstatistical modelingdata visualizationETL processes

Soft Skills

storytellingmentoringinfluencingbusiness acumenoperating in ambiguity