Principal Software Engineer

Principal Software Engineer

  • Location SUNNYVALE, CA
  • Career Area Technology & Software Development
  • Job Function Software Development and Engineering
  • Employment Type -
  • Position Type -
  • Requisition 826129BR

What you'll do at

The Social Advertising team @WalmartLabs builds and owns automated advertising platforms which serve display and product ads on the open web and social media sites like Facebook, Twitter, Pinterest, and Snapchat. The team is a major contributor of new customers acquisitions to Walmart as well as revenue & visits to Walmart. We analyze and model terabytes of offline and online purchases, search and browse datasets to deliver a personalized ad to Walmart.com customers and visitors across the web.

As a principal engineer in the team, you will have opportunities to influence the technical roadmap and work with other engineers on different aspects of the system such as personalized recommendations and targeting, conversion modeling, bid optimization, lifetime value optimization, look-alike modeling etc. As part of the team, you will have the opportunity to work hands on large scale real-time machine learning models using state of the art technologies including NoSQL, Apache Spark, and Kafka. The algorithms you develop will be used for personalized remarketing for users as well as driving completely new visitors and customers to Walmart. If you speak and think machine learning, then we want to talk to you. Come join our team and be part of this exciting journey.

Minimum Qualifications

• A minimum of MS in CS with 3+ years of related experience or PhD in CS or related fields
• Good functional coding skills in C++, Java, Scala in addition to good knowledge of one of the scripting languages such as Python or Perl.
• Experience working with large data sets and distributed computing tools (Map/Reduce, Hadoop, Hive, Spark etc.)
• Knowledge of Spark, Scikit-learn, Problem solving, Willing to learn new technologies.
• Knowledge of machine learning, information retrieval, data mining, statistics, NLP or related field.
• Superior ability to analyze and interpret the results of product experiments.
• Proven experience working with statistical languages such as R.
• Strong communication skills both written and verbal
• Self-starter, Quick learner, Keen observer, eye for detail and someone who relishes challenges

Preferred Qualifications

Nice to have:
• Strong research and publication record
• Prior experience as an applied research engineer or data engineer building machine learning pipelines for problems including search, recommendations, targeting etc

About Walmart Labs

Walmart Labs is the technology arm of Walmart reimagining retail for our 260 million daily shoppers. Our teams of engineers, designers, and product leaders are experimenting for a smarter future—where online and in-store shopping is an interconnected, consistent, and customer-first experience.
Walmart Associate
"I feel like my manager wants to help me become a better developer and a better person overall."
— Roel, Program Analyst

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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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