Senior, Data Scientist

Position Summary

As a Senior Data Scientist for Last‑Mile Delivery at Walmart, you will help pioneer algorithms for demand, capacity, cost, and fulfillment to make Walmart’s delivery platform one of the fastest and most reliable delivery services in the country. You will have access to our limitless global data harvested from our customer and driver apps.

Navigating rush hour traffic to deliver groceries to our customers in as little as an hour. Maneuvering through a bustling city during the peak times of the day. Adapting our routes during rush hour and major events like the Super Bowl. Sounds simple right? Our Last‑Mile team utilizes hundreds of data points to create connections between stores, customers, shoppers, and drivers.

• Identifying opportunities and business problems and framing them into advanced data analytics project initiatives.
• Extracting available and relevant data from internal and external data sources to perform data science solution development.
• Performing exploratory data analysis to verify data quality and data integrity.
• Design, analyze, and run both simulated and live experiments (A/B and multivariate tests) to drive KPI improvements.
• You will conceive and lead projects while being a hands‑on builder of machine learning/deep learning software components.
• You will coach and mentor the next generation of strong engineers on the team.

You will be joining a growing data science team and will tackle some of the most challenging and impactful problems that are transforming how people buy groceries every day. Our systems support thousands of drivers and shoppers on the Walmart’s platform by offering immediate and flexible earnings opportunities, and so we must remain highly reliable at all times to ensure that Walmart’s customers receive timely and high‑quality deliveries.

• Build reserve management models, develop dashboards and analytical frameworks to provide regional and network insights and monitor applicant pipeline (>3M applicants).
• Manage, build, and automate segmentation model and marketing bidding framework to create efficiencies for sourcing and segmentation and reduce applicant wait time.
• Propose, design, and analyze experimentation across acquisition channels; communicate results and act on pilot decisions.
• Conduct new driver churn, re‑engagement, and reactivation study, research. Develop reactivation and re‑engagement study, research, and re‑engagement strategy. Leverage data and analytic frameworks to identify opportunities for re‑engagement and reactivation.

• Ability to thrive in an unstructured environment, working autonomously on a strong team to find opportunity and deliver business impact.
• Advanced understanding of machine learning algorithms, statistical modeling, causal inference, complex systems modeling, operations research, economics, etc. to shape the future of Walmart.
• Experience with A/B testing and ability to run rigorous experiments to produce scientifically sound recommendations.
• Build simulations to project impact of various product and policy interventions.
• Proven ability with statistical methods and advanced modeling techniques like Regression, Decision Trees, Random Forest, Clustering, NLP, Text Mining, etc.
• Proficient coding in one or more languages:
  Java, C++, Python, Spark, Scala, or R.
• Deep expertise in writing efficiently and debugging complex SQL queries.
• Data‑driven storytelling experience with visualizations in Tableau, Power BI, etc.

• Strong written, oral communication and presentation skills.
• Problem‑solving skills / Abstract thinking – ability to understand a real‑life problem, make the right judgement of problem statement, and give a feasible design of solution.
• Experience in interacting with business stakeholders and effectively drive conversations.
• Experience on leveraging visualization to build compelling stories based on context to integrate multiple pieces of information into cohesive insights.

Beyond competitive pay, you can receive incentive awards for your performance. Other great perks include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO,…