Senior, Data Scientist (Sam's Club)

Position Summary...
What you'll do...
Supply Chain at Sam's Club is all about delivering plans that help provide our members with the products they want, where they want them, at the best price possible. To accomplish this, associates must think critically and create efficiencies, using data and experience to overcome complex challenges. We invite you to join the Sam's Club Supply Chain Team; a quick moving group of motivated individuals with skills ranging from data analytics to strategy and execution. Together we will design the supply chain of the future and improve our members' lives .
As a Senior Data Scientist on the Supply Chain team, you'll be based in Bentonville, AR and will provide strategic and analytic support for the supply chain business, product managers, operations and merchandising teams at Sam's Club. You'll focus on using data and analyses to uncover problems and inform critical business decisions.
What you'll do...

• Identify data sources and scenarios for your business: you'll categorize and extract data to perform initial data quality checks.
• Drive the data strategy: you'll define, articulate and apply the strategy that's driven by data enabled insights / decisions to unlock the monetary value of data assets.
• Deploy & Scale Models: You'll evaluate analytical models, support their scalability, sustainability and ensure they can be deployed into production.
• Develop & Test Code: you'll write and test code to develop solutions and application features.
• Assess & Validate Models: you'll test and tune multi-stage models and model ensembles to assess accuracy, fit, validity, and robustness.
• Build Data Visualizations: you'll design data representations for multiple data sets, generate appropriate graphical representations of data and model outcomes, work with UX designers and UI engineers to build front end applications and present data visualization frameworks to the business to influence decisions through clear messaging.
• Understand Business Context: You'll provide recommendations to business stakeholders to solve complex business issues, develop business cases for projects with a projected ROI or cost savings and translate business requirements into projects, activities, and tasks that align to the overall business strategy.
• Formulate Technical Solutions: you'll translate / co-own business problems to data related or mathematical solutions, identify and leverage appropriate methods / tools to provide a solution and share use cases / examples to demonstrate how the method would solve the business problem.
• Select Analytical Modeling: you'll select the analytical modeling technique most suitable for structured, complex data, develop custom analytical models, conduct exploratory data analysis (i.e. basic statistical analysis, hypothesis testing, statistical inferences, trend and cluster analysis, etc.), and define and finalize features based on model responses, introducing new or revised features to enhance the analysis and outcomes.

What you'll bring...

• A master's degree in Machine Learning, Computer Science, Information Technology, Operations Research, Statistics, Applied Mathematics, Econometrics or related field

• 4-6 years of experience in data science, machine learning, optimization models, or related field, 6+ years preferred
• Experience in data source identification, working with database technologies, distributed datastores (e.g. SQL, NoSQL) and existing business systems and processes
• An understanding of business value, data relevance, and appropriate application of the data ecosystem including data management, data quality standards, data governance, accessibility, storage and scalability, etc.
• Knowledge of variable and feature impact on model performance and understanding of servers and formats for model storage
• Use of coding languages like SQL, Java, C++, Python, R and others to test methods such as static, dynamic, software composition analysis, manual penetration testing, etc.
• Comfort level with model fit testing, tuning, and validation techniques (e.g. Chi square, ROC curve, root mean square error etc.)
• Familiarity with multiple data visualization tools (i.e. Python, R libraries, GGplot, Matplotlib, Ploty, Tableau, PowerBI etc.) and use of advanced visualization techniques to communicate and influence
• Experience in analytics consulting, data-based storytelling and presenting findings to business teams in a relatable way
• Deep expertise in analytics / big data analytics / automation techniques and methods
• Use of classical optimization techniques (e.g. Newton-Rapson methods, Gradient descent) and numerical methods of optimization (e.g. Linear Programming, Integer Programming, Quadratic Programming, etc.)
• Exploratory data analysis techniques and advanced statistical method modelling (e.g. graphical models, Bayesian inference, basic level of NLP, Vision, neural networks, SVM, Random Forest etc.).

The above information has been designed to indicate the general nature and level of work performed in the role. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications required of employees assigned to this job. The full Job Description can be made available as part of the hiring process.
Benefits & Perks:
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, multiple health plans, and much more.
Equal Opportunity Employer
Walmart, Inc. is an Equal Opportunity Employer - By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing diversity- unique styles, experiences, identities, ideas and opinions - while being inclusive of all people.
Who We Are
Sam Walton opened the first Sam's Club in 1983 to meet a growing need among customers who wanted to buy merchandise in bulk. Since then, Sam's Club has grown rapidly, operating nearly 600 clubs in the US and more than 200 internationally. By offering affordable, wholesale merchandise to members, you'll help make saving simple for families and small business owners. Yes, we are a division of the Fortune #1 company, Walmart, Inc. and you'll quickly find that we're a company that wants you to feel comfortable bringing your whole self to work. A career at Sam's Club is where the world's most complex challenges meet a kinder way of life. Our mission spreads far beyond the walls of our clubs. Join us and you'll discover why we are a world leader in diversity and inclusion, sustainability, and community involvement. From day one, you'll be empowered and equipped to do the best work of your life. careers.walmart.com
Minimum Qualifications...
Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.
Option 1- Bachelor's degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or related field and 3 years' experience in an analytics related field. Option 2- Master's degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or related field and 1 years' experience in an analytics related field. Option 3 - 5 years' experience in an analytics or related field.
Preferred Qualifications...
Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.
Data science, machine learning, optimization models, Master's degree in Machine Learning, Computer Science, Information Technology, Operations Research, Statistics, Applied Mathematics, Econometrics, Successful completion of one or more assessments in Python, Spark, Scala, or R, Using open source frameworks (for example, scikit learn, tensorflow, torch)
Primary Location...
2101 SE SIMPLE SAVINGS DR, BENTONVILLE, AR 72712-4304, United States of America