Machine Learning Scientist

Machine Learning Scientist

  • Location SAN BRUNO, CA
  • Career Area Data Science and Analytics
  • Job Function Data Science and Analytics
  • Employment Type -
  • Position Type -
  • Requisition 1358393BR

What you'll do at

This position is in the data science team under the Advertising Technology organization. The mission of the Advertising Technology organization is to advance Walmart eCommerce by driving higher value for our customers and vendor partners. Walmart is investing in building a world class advertising platform and the Ads team is responsible for defining and performance advertising products that drive discovery, sales and profits. The team operates an end to end advertising platform that includes a scalable ad service that serves hundreds of millions of impressions each day, sophisticated ad matching algorithms, real-time reports, self-service interface for end to end program management etc.

We are a highly motivated group of Big Data Geeks, Data Scientists and Applications Engineers, working in small agile group to solve sophisticated and high impact problems. We are building smart data systems that ingest, model and analyze massive flow of data from online and offline user activity. We use cutting edge machine learning, data mining and optimization algorithms on ad relevance, ranking and campaign optimization.

Join us if you want to be spending your time on:
- Gathering and analyzing data, identifying modeling and optimization problems, devising solutions and building prototypes;
- Formulating machine learning/statistical approaches while paying attention to business metrics, designing features from the rich data available from many sources, training, evaluating, and deploying models;
- Researching and implementing methodologies to measure the impact of the technologies;
- Initiating and proposing unique and promising modeling projects, developing new and innovative algorithms and technologies, pursuing patents where appropriate;
- Developing high-performance algorithms for precision targeting, user engagement prediction, and ad relevance/ranking; testing and implementing these algorithms in scalable, product-ready code; interacting with other teams to define interfaces and understanding and resolving dependencies;
- Staying current on published data mining, machine learning and modeling techniques and competing technologies and sharing these findings with scientists and engineers in the organization;
- Maintaining world-class academic credentials through publications, presentations, external collaborations and service to the research community.

Minimum Qualifications

Masters or equivalent degree in a computational science with 4+ years of experience in Machine Learning/Statistics/Data Science;
Experience with traditional as well as modern machine learning/statistical techniques, including Regression, Classification, Regularization, Ensemble Methods, and Neural Network;
Strong implementation experience with high-level languages, such as Python, R, Perl, Ruby, Scala or similar scripting languages;
Familiarity with Linux/Unix/Shell environments;
Strong hands-on skills in sourcing, cleaning, manipulating and analyzing large volumes of data;
Strong written and oral communication skills.

Preferred Qualifications

Ph.D. in a computational science with an emphasis in Machine Learning;
Experience in online advertising, recommender system, ecommerce or relevant areas;
2+ years of experience of writing production quality code;
Experience with end-to-end modeling projects emerging from research efforts;
Excellent academic or industrial track record of proposing, conducting and reporting results of original research, plus collaborative research with publications;
Knowledge of data processing on Hadoop programming environments (e.g. Spark/Hive/Pig).

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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