Walmart Principal Data Scientist in SUNNYVALE, California

858009BRReq ID:858009BRCompany Summary:Walmart Global eCommerce is comprised of Walmart.com, VUDU, SamsClub.com, and our technical powerhouse @WalmartLabs. Here, innovators incubate next gen e-commerce solutions in real-time. We integrate online, physical, and mobile shopping experiences for billions of customers around the globe. How do we do it? We continuously build and invest in new technology including open source tools and big data innovations. Data scientists, front and back-end engineers, product managers, and web and UX/UI teams collaborate alongside e-commerce experts to envision, prototype, and bring revolutionary ideas to life in a dynamic, flexible and fun work culture.Job Title:Principal Data ScientistPosition Summary:The candidate will work on building the next generation of eCommerce technologies at the WalmartLabs search ranking team. She/He will have the opportunity to build state of the art search and browse ranking algorithms that power Walmart's eCommerce websites and mobile applications, serving millions of requests per day and generating billions of dollars of revenue per year.City:SUNNYVALEState:CAPosition Description:

  • A Principal Data Scientist is responsible for collaborating with a business segment to determine long-term vision and provide analytical support and guidance. A Principal Data Scientist analyzes large data sets to develop multiple, complex custom models and algorithms to drive innovative business solutions. Principal Data Scientists work on large project teams in order to provide analytical support and guidance to a large project team (for example, email targeting, business optimization, consumer recommendations) within Walmart eCommerce. The algorithms built

  • Build learning systems to analyze and filter continuous data flows and offline data analysis.

  • Combine data features to determine search models.

  • Conduct advanced statistical analysis to determine trends and significant data relationships.

  • Develop machine learning models to apply test data algorithms to future data.

  • Develop models of current state in order to determine improvements needed.

  • Drives the execution of multiple business plans and projects

  • Ensures business needs are being met

  • Interpret data to identify trends to go across future data sets.

  • Lead project teams to develop innovative solutions to drive innovative business solutions.

  • Lead the implementation of data modeling solutions.

  • Promotes and supports company policies, procedures, mission, values, and standards of ethics and integrity

  • Provide guidance to cross-functional leadership regarding data modeling possibilities.

  • Provides supervision and development opportunities for associates

  • Research new techniques and best practices within the industry.

  • Review business strategies to ensure alignment across initiatives.

  • Scale new algorithms to large data sets.

  • Train algorithms to apply models to new data sets.

  • Translate business needs into data modeling initiatives.

  • Utilize system tools including (MySQL, Hadoop, Weka, R, Matlab,ILog).

  • Validate models and algorithmic techniques.

Minimum Qualifications:- PhD in information retrieval, Data mining, Machine learning, Deep Learning, NLP, Statistics, Vision or related areas

  • Programming experience in either Python or JAVA

  • Strong understanding of one of probability-statistics/optimization/linear algebraAdditional Preferred Qualifications:- Experience working on commercial search/recommendation engines or publishing in top conferences like SIGIR, KDD, WSDM, NIPS, ACL etc.

  • Experience with techniques like text retrieval models, click models, learning to rank, explore exploit, reinforcement learning, deep learning etc.

  • Experience with big data technologies such as hive, hadoop, spark etc.Category:Data Science / Machine Learning Division:Walmart LabsDivision Summary:@WalmartLabs is the technical powerhouse behind Walmart Global eCommerce. We employ big data at scale -- from machine learning, data mining and optimization algorithms, to modeling and analyzing massive flows of data from online, social, mobile and offline commerce. We don’t just engineer cool websites, mobile apps, and new services; we use our own open source tools to create the framework. Deployment is automated and accelerated through our open cloud platform. This makes us incredibly nimble and able to adjust in real-time to our global customers.Employment Type:Full TimeRequisition Template:eCommerce Department Summary:The Search team processes billions of queries for millions of products on Walmart sites and mobile apps worldwide. We mine structured and semi-structured data from product catalogs, social web, transactions, query logs, etc. at an unprecedented scale. We work on big data problems, cutting edge relevance algorithms from information retrieval, machine learning, and ranking to deliver a high-availability, low-latency service, which directly impacts business metrics.