Senior Manager, Data Science

Position: (USA) Senior Manager, Data Science
Position Summary...

What you'll do...

The Mission The Walmart Last Mile team is shifting from reactive tracking to proactive resolution. We are building an autonomous Recommendation Agent capable of detecting anomalies, diagnosing root causes via Causal AI, and prescribing actions to save the customer experience. We are seeking a Senior Manager, Data Science to serve as the Technical Lead for this initiative. You will be a high-impact Individual Contributor (IC) who architects the system and sets the engineering standard for the team.

You won't just build models; you will define how we build, test, and monitor them.

The Role This is a Player-Coach role. You will own the system architecture and mentor senior data scientists. You are the "Code Guardian"-ensuring that the team's output isn't just scientifically sound but is also production-grade code that is tested, versioned, and monitored. What You Will Do

* Architect the System Strategy:
Define the end-to-end framework for our proactive agent, deciding how we integrate Anomaly Detection, Causal Inference, and Forecasting into a cohesive system.

* Lead Code Quality & Reviews:
Act as the gatekeeper for the codebase. You will conduct rigorous code reviews, enforce strict Git management workflows (branching strategies, PRs), and mandate comprehensive unit and integration testing.

* Model Observability:
Design and implement ML Monitoring frameworks to track model performance, data drift, and concept drift in real-time. You ensure the agent doesn't silently fail when the world changes.

* Technical Mentorship:
Lead the team through design docs and methodology selection. You will elevate the team's engineering maturity, moving them from "notebook scripts" to modular, deployable packages.

* Drive Causal

Innovation: Spearhead the application of Causal AI to ensure our agents understand why failures happen, moving the team beyond simple correlation.

* Hands-On Development:
Roll up your sleeves to write high-performance Python and PySpark code for the most complex components of the recommendation engine.

What You Will Bring Required Technical Skills

* Core Stack:
Expert-level fluency in Python and SQL.

* Big Data:
Strong hands-on experience with Py Spark

* Software Engineering Standards:

* Git Management:
Advanced proficiency with version control. You know how to manage merge conflicts, release branches, and code repositories for a team.

* Testing:
You don't merge code without tests. Experience writing and enforcing Unit Tests (pytest/unittest) and Integration Tests.

* ML Monitoring:
Experience implementing monitoring solutions to detect Data Drift and Model Decay in production.

* Analytical Breadth:

* Causal Inference:
Ability to apply causal frameworks to observational data.

* Forecasting & Anomaly Detection:
Deep knowledge of time-series modeling and outlier detection methods.

Preferred Qualifications (Good to Have)

* MLOps & Dev Ops:
Familiarity with CI/CD pipelines (Jenkins, Git Hub Actions, Git Lab CI) and how to automate model training/deployment.

* Containerization:

Experience with Docker or Kubernetes for model serving.

* Infrastructure:
Understanding of cloud infrastructure (Azure/GCP) and how to optimize compute resources for heavy workloads.

Leadership & Strategy

* Technical Authority: A track record of leading technical teams and setting coding standards.

* Ambiguity Tolerance:
You can take a vague business goal ("Fix late deliveries") and decompose it into a concrete, executable roadmap.

* Education:

Advanced degree (MS/PhD) in a quantitative field (CS, Stats, OR, Econ) is preferred.

Why This Role?

You will be the Technical Anchor for one of the most ambitious projects in Walmart's supply chain. You will have the autonomy to choose the tools, define the architecture, and lead a talented team to build an agent that proactively protects the experience of millions of customers. At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet.

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. You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes.

The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. For information about PTO, see  Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and…