USA) Senior, Data Scientist

Position: (USA) Senior, Data Scientist
Position Summary...

What you'll do...

Role summary:

As a Senior Data Scientist at Walmart, you will leverage advanced analytical techniques and domain expertise to identify, develop, and deploy data-driven solutions that support strategic business objectives. This role involves designing robust models, performing rigorous validation, and ensuring scalability while collaborating across functions to translate complex data into actionable insights. You will guide technical development, uphold data quality standards, and communicate findings effectively to influence decision-making.

Your expertise will drive innovation and continuous improvement, contributing to Walmart's commitment to operational excellence and customer value.

About the team:

The Applied AI Search & Personalization team develops advanced machine learning solutions to improve product discovery and create tailored shopping experiences. Focusing on query understanding, retrieval, ranking, recommendations, personalization, and Generative AI, the team combines innovative AI research with scalable engineering. Their efforts enhance customer engagement, conversion rates, and business growth globally. Team members leverage expertise in data science, predictive modeling, and large language models to address complex challenges, delivering impactful solutions that support Walmart's commitment to excellence and value in customer experience.

What you'll do:

* Identify and source relevant data from multiple business domains, ensuring data quality and suitability for analysis.

* Develop, test, and deploy advanced analytical models using Python, PySpark, and statistical methods to solve complex business problems.

* Evaluate and validate model performance through rigorous testing and tuning techniques to ensure accuracy and robustness.

* Collaborate with stakeholders to translate business requirements into data-driven solutions and actionable insights.

* Create clear and effective data visualizations to communicate findings and influence decision-making.

* Mentor junior team members on modeling techniques and best practices.

What you'll bring:

* Extensive experience in data science, including advanced statistical methods and predictive modeling.

* Proficiency in Python programming and data visualization tools such as Matplotlib and Plotly.

* Strong knowledge of machine learning techniques, including large language model evaluation and fine-tuning.

* Expertise in data source identification, data quality assessment, and database technologies like SQL and No

SQL.

* Ability to develop, test, and deploy scalable analytical models in production environments.

* Solid understanding of business domains to translate requirements into data-driven solutions.

* Experience mentoring junior associates and collaborating cross-functionally to achieve business goals.

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. Benefits are…