Staff Data Scientist

1 month ago

sunnyvale, United States Walmart Global Tech Full time

About the team:


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.


We are a highly motivated group of Big Data Geeks, Machine Learning 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.



What you'll do


  • Research, design, and implement data models and cutting edge algorithms on high-dimensional, fast-moving, unstructured and structured data.
  • Process complicated and large scale datasets using distributed computing platform, extract insights from data, predict future trends, and optimize towards business metrics.
  • Build advanced feature extraction algorithms that feed into various advertising applications, including audience targeting, relevance and ranking, measurement and optimization.
  • Build machine learning and statistical models to predict or estimate key signals that are used to optimize advertising product performance.
  • Run large scale statistical A/B testing to evaluate performance of machine learning and statistical models in advertising applications which serve hundreds of millions of impressions per day.
  • Build compelling data visualizations and interactive dashboards for monitoring and sharing business insights internally and externally.



What you'll bring:

  • You’re experienced with traditional as well as modern machine learning/statistical techniques, including Regression, Classification, Ensemble Methods, Deep Learning and Reinforcement Learning.
  • You have strong implementation experience with at least one programming language (Python preferred).
  • You have strong hands-on skills in sourcing, cleaning, manipulating, and analyzing large volumes of data using distributed computing platform.
  • 2+ years of experience mentoring junior data scientists or machine learning team.
  • You have strong written and oral communication skills.
  • You have experience in online advertising, recommender system, ranking, ecommerce or relevant areas.
  • You’re experienced with end-to-end modeling projects emerging from research efforts.
  • You have an excellent academic or industrial track record of proposing, conducting, and reporting results of original research, plus collaborative research with publications.

About Walmart Global Tech

Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That’s what we do at Walmart Global Tech. We’re a team of software engineers, data scientists, cybersecurity expert's and service professionals within the world’s leading retailer who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. We are people-led and tech-empowered. We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail.

Flexible, hybrid work:

We use a hybrid way of working that is primarily in office coupled with virtual when not onsite. Our campuses serve as a hub to enhance collaboration, bring us together for purpose and deliver on business needs. This approach helps us make quicker decisions, remove location barriers across our global team and be more flexible in our personal lives.



Benefits:

Benefits: Beyond our great compensation package, 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.

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