Senior Manager, Data Science

Walmart Walmart · Retail · Sunnyvale, CA

This role focuses on deploying, testing, tuning, and validating machine learning models in a production environment, likely for business applications within Walmart. It involves understanding model performance, applying best practices for testing and tuning, and potentially deploying models to production servers. While it involves advanced modeling techniques, the primary output is the operationalization and quality assurance of these models as part of a business product.

What you'd actually do

  1. Apply best practice techniques for model testing and tuning to assess accuracy fit validity and robustness for multistage models and model ensembles
  2. To deploy models to production
  3. Continuously log and track model behavior once it is deployed against the defined metrics
  4. To select appropriate modeling techniques for complex problems with large scale multiple structured and unstructured data sets
  5. Translate business requirements into projects activities and tasks and aligns to overall business strategy

Skills

Required

  • Python
  • R
  • SQL
  • model fit testing
  • model tuning
  • model validation
  • model evaluation metrics
  • data visualization
  • feature engineering
  • statistical modeling
  • machine learning algorithms
  • deployment to production
  • model performance tracking

Nice to have

  • Chi square
  • ROC curve
  • root mean square error
  • graphical models
  • Bayesian inference
  • NLP
  • Vision
  • neural networks
  • SVM
  • Random Forest
  • multivariate calculus
  • optimization techniques
  • auto ML
  • streaming data
  • raw text data
  • Java
  • C
  • testing methods
  • penetration testing
  • big data analytics
  • automation techniques
  • database technologies
  • distributed datastores

What the JD emphasized

  • model testing
  • model tuning
  • model validation
  • model evaluation
  • model deployment

Other signals

  • model deployment
  • model testing
  • model tuning
  • model validation
  • model evaluation