Senior Data Scientist - Anti-Fraud

Senior Data Scientist - Anti-Fraud

  • Location SUNNYVALE, CA
  • Career Area Data Science and Analytics
  • Job Function Data Science and Analytics
  • Employment Type -
  • Position Type -
  • Requisition 1240472BR

What you'll do at

Ready to give the customers an Omni-channel experience for all their shopping? We at WalmartLabs are taking a big data approach to the sophisticated problem of real-time fraud detection and the opportunity for you to have visible impact couldn’t be bigger!

We are a highly motivated group of Big Data Geeks, Data Scientists and Applications Engineers, working in a small agile group to solve this sophisticated problem. We are building smart data systems that ingest, model and analyze massive flow of data from online, social, mobile and offline commerce/user activity to set prices for millions of products in real time. We use cutting edge machine learning, data mining and optimization algorithms underneath it all to analyze this data on top of Hadoop/HBase/Hive. We build compelling data visualizations and interactive dashboards to showcase our work internally and externally.

Your work will be immediately visible to millions of people and you will have a direct impact on the business goals of Fortune #1 company. If you talk, speak and think data we want to talk to you. Come join our small team and be part of the journey from the beginning.


  • Research, design and implement data models and cutting edge algorithms to analyze diverse sources of data to predict fraud.
  • For each modeling project, preparing and extracting data from large databases, designing its best structure and selecting the most appropriate modeling technique which may include a combination of several modeling techniques like logistic regression, clustering algorithms, collaborative filtering algorithms, decision trees and neural networks.
  • Analyzing model performance and communicating model design and performance results to senior management.
  • Work with high dimensional and fast moving data to build continually learning systems
  • Working with product managers and engineering in deploying models.
  • Providing on-going performance tracking reports and managing model related issues continually.
  • Through your work have direct impact on revenue and bottom line

Minimum Qualifications

  • MS/PhD in Computer Science/ Analytics/ Operations Research/Statistics or a related technical discipline
  • 1-2 years of experience in data analytics, predictive modeling and machine learning using R, Python or similar statistical tools
  • Proficiency in database concepts, SQL, Hive and UNIX is required
  • Experience in analyzing massive and highly complex data sets, performing ad-hoc analysis and data manipulation and visualization tools
  • A passion for excellence in analytics and machine learning
  • Experience in programming languages would be a plus
  • A can-do attitude to carry out a project from design to production on a timely basis
  • Great communication skills, strong project management skills and teamwork, and superb attention to details
  • Attitude to thrive in a fun, fast-paced start-up environment with stellar team of fellow data geeks

About Walmart Labs

Imagine working in an environment where one experiment can catapult an entire industry toward a smarter future. That’s what we do at Walmart Labs. We’re a team of 5,000+ software engineers, data scientists, designers and product managers within Walmart, the world’s largest retailer, delivering innovations that improve how our customers shop and our enterprise operates.

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All the benefits you need for you and your family

  • 100% coverage for in network preventative care
  • Retirement Plan
  • Vision Plans
  • Dental Plans
  • Exclusive Discounts

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