Data Scientist

Position Summary…

Walmart Marketplace is a key part of e‑commerce  is a gateway for Third‑Party Sellers to manage their operations such as onboarding, catalogs, order fulfillment, global opportunities, and return and refund management. We are responsible for providing the best in‑class marketplace experience for our sellers and customers through the design, development, and operations of highly scalable systems. We interact with multiple teams within the company to develop scalable, robust technical solutions.

The data scientist role will be part of the data science team and will play a key role working along with others within the Marketplace engineering organization, product managers and business stakeholders to build Machine Learning products.

• Research and implement state‑of‑the‑art machine learning techniques, including deep learning, reinforcement learning, and NLP.
• Collaborate cross‑functionally with stakeholders to align AI solutions with Walmart’s business objectives.
• Design and optimize ML pipelines, ensuring scalability, efficiency, and real‑time processing capabilities.
• Build and deploy end‑to‑end models, balancing accuracy, computational efficiency, and business impact.
• Explore and integrate the latest AI advancements, ensuring Walmart remains a leader in AI‑driven delivery solutions.

• Prior experience in Supply Chain Data Science would be preferable.
• Hands on experience in network optimization would be an added advantage.
• Hands on experience with distributed computing framework like Spark is mandatory.
• Very good knowledge of the foundations of machine learning and statistics.
• Experience in machine learning, supervised and unsupervised and deep learning.
• Experience in analyzing complex problems and translating them into data science algorithms.
• Experience with big data analytics – identifying trends, patterns, and outliers in large volumes of data.
• Strong experience in Python with excellent knowledge of data structures.
• Strong experience with big data platforms – Hadoop (Hive, Pig, Map Reduce, Scala, Spark).
• Hands on experience with Git.
• Experience with SQL and relational databases, data warehouse.

• Ph.D. or equivalent advanced degree in Computer Science, Statistics, Operations Research, Economics, or a related field.
• Extensive experience in machine learning, reinforcement learning, GenAI, LLMs, and NLP.
• 5+ Years of experience deploying ML models in production, preferably in high‑scale environments.
• Strong programming skills in Python, Java, C, or C++.
• Experience with large‑scale data systems (Spark/Hive) and cloud computing (GCP/Azure).
• Ability to drive projects from conception to production in a fast‑paced, dynamic environment.
• Excellent communication and leadership skills, with the ability to influence and inspire cross‑functional teams.

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 short‑form certificates. Tuition, books, and fees are completely paid for by Walmart. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment.…