Data Scientist, Search and Personalization – Sam’s Club

Website Sam's Club

Position Summary…

What you’ll do…

Sam’s Club Technology a division of Walmart Global Tech has opportunities for Data Scientists specializing in Search and Personalization to join the Data Science & Engineering group. The Data Scientist will work with a team from multiple disciplines to build new software to improve our business. Positions housed in Bentonville, Arkansas, and Dallas, Texas.

What you’ll be doing…

Analytical Modeling – Feature relevance and selection. Exploratory data analysis methods and techniques. Advanced statistical methods and best- practice advanced modelling techniques (e.g., graphical models, Bayesian inference, NLP, Recommender systems, Vision, neural networks, SVM, Random Forest etc.). Programming languages like R/Python/PySpark.

Model Assessment & Validation – Model fit testing, tuning, and validation techniques (e.g., Chi square, ROC curve, root mean square error etc.). Impact of variables and features on model performance.

Model Deployment & Scaling – Impact of variables and features on model performance. Understanding of dockers/containers, cloud architecture, servers, model formats to store and serve model via batch processing or real time.

Data Visualization: Generates appropriate graphical representations of data and model outcomes under guidance. Supports the understanding of customer requirements and designs data representations for simple data sets. Presents to and influences the team using the appropriate frameworks and conveys messages through basic business understanding.

Core Skills

  • Sound knowledge of machine learning and deep learning concepts
  • Applied knowledge in ML (decision trees, random forests, boosting, etc.) and DL (CNNs, RNNs, attention mechanisms, etc.)
  • Sound knowledge of managing data for experiments (sampling, labelling, EDA, etc.)
  • Statistical Measurement, A/B Testing
  • Experience working with large data sets in big data environments (preferably Hadoop based)
  • Working proficiency in Python, SQL and Linux/UNIX environments

Minimum Qualifications

  • Bachelors degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 2 years’ experience in an analytics or related field OR Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field OR a minimum of years’ experience in an analytics or related field.

Preferred Qualifications

  • Master’s degree in Machine Learning, Computer Science, Information Technology, Operations Research, Statistics, Applied Mathematics, Econometrics, or related field.
  • 3 years’ experience in data science, machine learning, recommenders’ systems, optimization models, or related field.
  • 1 year experience using open-source frameworks (for example, scikit learn, TensorFlow, torch).
  • Knowledge of experimental design and A/B testing

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.

Minimum Qualifications…

Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.

Option 1: Bachelors degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 2
years’ experience in an analytics or related field. Option 2: Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science,
Information Technology or related field. Option 3: 4 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)

To apply for this job please visit walmart.wd5.myworkdayjobs.com.