Senior, Data Analyst - Last Mile Delivery - Fraud Detection

Based onsite in Bentonville, Arkansas, Walmart invites a Senior Data Analyst to lead the fraud-detection effort within its Last Mile Delivery program. You will act as the lead architect for building, scaling, and optimizing fraud-detection capabilities across Walmart’s expansive data ecosystems, developing risk-signal logic and end-to-end SQL and Python pipelines, and presenting fraud strategies to senior leadership to align the roadmap with global business goals.

Responsibilities

• Scale pattern recognition by analyzing user behavior and platform interactions at scale to identify unusual activity, suspicious accounts, and emerging fraud vectors.
• Core analytic execution using segmentation, trend analysis, anomaly detection, and correlation testing to reveal sophisticated fraud patterns across large, complex datasets.
• Risk signal synthesis through the combination of data points such as GPS movement, device details, and behavioral metadata to produce high-fidelity risk assessments.
• Contextual intelligence that incorporates real-world factors, including cultural, social, and environmental context, to capture nuances automated systems might miss.
• Signal engineering to design and refine fraud indicators, including measurable behaviors, thresholds, and composite signals for continuous monitoring via models and dashboards.
• Hypothesis validation that identifies fraud motivations and opportunities, transforming ideas into testable data signals and validation frameworks.
• Logic optimization by stress-testing queries against legitimate user scenarios to refine logic, thresholds, and exclusion rules, reducing false positives.
• Strategic enhancements through structured feedback and technical business requirements to drive new fraud signals and detection-tool improvements.
• Audit-ready documentation, maintaining structured investigation records that document every step from detection to deactivation.
• External intelligence integration using OSINT to supplement internal data, confirm identities, and uncover external fraud clues or networks.
• Defensible reporting with clear technical documentation designed to withstand audits or legal scrutiny.
• Adversarial prototyping to anticipate exploits by thinking like a bad actor and identifying vulnerabilities to stay ahead of evolving fraud tactics.
• Cross-functional insight delivery to Product, Legal, Compliance, Engineering, and Care Operations, informing tooling improvements and policy updates.
• Strategic decision support through deep operational context that guides broader fraud-prevention strategies and product design decisions.
• Programmatic gap analysis that summarizes operational findings, QA trends, and SOP gaps to drive ongoing program updates.
• Compliance and audit governance, overseeing technical and operational documentation to ensure audit readiness and global compliance adherence.

Requirements

• Bachelor's degree in Business, Engineering, Statistics, Economics, Analytics, Mathematics, Arts, Finance or related field, plus two years of experience in data analysis, data science, statistics, or a related field.
• Master's degree in Business, Engineering, Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field.
• Alternatively, four years of experience in data analysis, data science, statistics, or a related field.

Technologies

• SQL
• Python
• Spark
• Scala
• R
• Power BI
• Tableau

Benefits

• Health benefits including medical, vision, and dental coverage
• 401(k) and stock purchase plans
• Paid time off including sick leave, parental leave, family care leave, bereavement, jury duty, and voting
• Disability coverage (short-term and long-term), discounts, Military Leave Pay, and adoption and surrogacy expense reimbursement
• PTO accrual for vacation, sick leave, holidays, and other purposes
• Live Better U education benefit program covering Walmart-paid tuition, books, and related fees
• Competitive pay and performance-based bonuses

Location

802 Respect Dr, Bentonville, AR 72716, United States of America

Walmart and its subsidiaries are committed to maintaining a drug-free workplace with a no tolerance policy regarding illegal drugs and alcohol on the job. This policy applies to all employees to create a safe and productive work environment.