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Data Scientist


Sunnyvale, CA 94086
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999215BRReq ID:999215BRCompany Summary:Walmart Global eCommerce is comprised of, VUDU,, 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:Data ScientistPosition Summary:The @WalmartLabs Personalization team consists of platform, application engineers, scientists and product visionaries all working together to design, prototype and build technology-driven products and experiences that will change the future landscape of ecommerce. We are focused on building the global service layer that will enable the end-to-end customer experience, from finding the product to delivering it to the customer. This will span many markets, business models and form factors; therefore, we are looking for engineers who will bring not only an abundance of experiences in technologies, but an abundant curiosity to innovate.

Come join an organization where you'll get to work as part of a world-class team, solve problems that are at a scale few can create, and get to build products that are only bound by the scope of your imagination. Put your footprint on ground up development focused on building brand new products that will impact a Global customer base.City:SUNNYVALEState:CAPosition Description:

+ A Data Scientist is responsible for analyzing large data sets to develop custom models and algorithms to drive business solutions. Data Scientists work on project teams in order to provide analytical support to projects (for example, email targeting, business optimization, consumer recommendations) for Walmart eCommerce. Data Scientists are responsible for building large data sets from multiple sources in order to build algorithms for predicting future data characteristics. Those algorithms will be tested, validated, and applied to large data sets. Data Scientists are responsible for training the algorithms so they can be applied to future data sets and provide the appropriate search results. Data Scientists are responsible for researching new trends in the industry and utilizing up-to-date technology (for example, HBase, MapReduce, LAPack, Gurobi) and analytical skills to support their assigned project.

+ Build complex data sets from multiple data sources, both internally and externally.

+ 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.

+ Demonstrates up-to-date expertise and applies this to the development, execution, and improvement of action plans

+ Develop custom data models to drive innovative business solutions.

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

+ Models compliance with company policies and procedures and supports company mission, values, and standards of ethics and integrity

+ Provides and supports the implementation of business solutions

+ Research new techniques and best practices within the industry.

+ Scale new algorithms to large data sets.

+ Train algorithms to apply models to new data sets.

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

+ Validate models and algorithmic techniques.

+ Work with cross-functional partners across the business

#LI-DCMinimum Qualifications: PhD in Statistics, Computer Science, Operations Research or related fields; OR a Masters degree or equivalent in Computer Science, Statistics, Operations Research or related field and 2+ years of related experience.

Deep knowledge in quantitative analysis, machine learning, data mining and statistical techniques,

Excellent proficiency with at least one modern compiled programming language (C++, Java etc) and one scripting language(Python, R etc.)

Experience with big data technology(Hadoop, Hive, Spark, Hbase etc.) and data processing pipeline

Strong problem-solving aptitude is a mustAdditional Preferred Qualifications: Work experience in a data scientist or equivalent role

Strong skill in database systems(mySQL) and complex SQL queries

Knowledge in Multi-armed-bandit Problems

Knowledge in Reinforcement LearningCategory: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 dont 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
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