Senior Data Scientist
Walmart

Job Info

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What you'll do at

What you'll do...

Position: Senior Data Scientist

Job Location: 221 River Street, Hoboken, NJ 07030

Duties: Understand data requirements, priorities, and service level agreements. Identify the most suitable source of data and perform initial data quality checks. Perform exploratory data analysis and hypothesis testing to generate key insights for business and identify feasibility, impact, and scope of business problem. Plan and design strategy for data generation, data preprocessing, feature generation, model development, and training to solve business problems. Identify model evaluation metrics. Apply best practice techniques for model testing and validation. Write code to develop required solutions and application features. Write test cases for unit testing and perform end-to-end testing of complete products. Ensure that the new feature is scalable and sustainable in production. Responsible for integration, end-to-end tests, production release, validation, and support of new features or solutions. Use appropriate methods of data visualization to represent data and model outcomes. Translate business problems into data science solutions. Identify use-cases and build proof-of-concept to demonstrate how the method will solve the business problem. Provide recommendations to business stakeholders to solve complex business issues. Guide junior and mentor junior associates.

Minimum education and experience required: Master's degree or equivalent in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, Engineering (any), or related field and 1 year of experience in an analytics related field; OR Bachelor's degree or equivalent in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, Engineering (any), or related field and 3 years of experience in an analytics related field.

Skills required: Experience coding in Python. Experience coding in Java. Experience with data pipeline design and implementation using Wings framework. Experience with data analysis and manipulation using Pandas and Scikit-learn. Experience with data retrieval using Hive, Pyspark, and SQL. Experience with deep learning libraries including Keras, Tensorflow, and Pytorch. Experience with NLP tools and models including NLTK, Gensim, Spacy, and BERT. Experience with statistics, hypothesis testing, and A/B testing. Experience designing and writing unit-tests using Python and Pytest. Experience with development and deployment tools including Element machine learning platform, VScode, GCP, Git, Looper, and Airflow. Experience with technical writing, data visualization, and data presentation. Employer will accept any amount of experience with the required skills.

Wal-Mart is an Equal Opportunity Employer.

#LI-DNI #LI-DNP

About Walmart

At Walmart, we help people save money so they can live better. This mission serves as the foundation for every decision we make, from responsible sourcing to sustainability-and everything in between. As a Walmart associate, you will play an integral role in shaping the future of retail, tech, merchandising, finance and hundreds of other industries-all while affecting the lives of millions of customers all over the world. Here, your work makes an impact every day. What are you waiting for?

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, abilities, ideas and opinions- while being inclusive of all people.

"At Walmart, you have the support you need at any given moment no matter the circumstance." - Shelby, Project Analyst

All the benefits you need for you and your family

• Multiple health plan options, including vision & dental plans for you & dependents
• Financial benefits including 401(k), stock purchase plans, life insurance and more
• Associate discounts in-store and online
• Education assistance for Associate and dependents
• Parental Leave
• Pay during military service
• Paid Time off - to include vacation, sick, parental
• Short-term and long-term disability for when you can't work because of injury, illness, or childbirth

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific plan or program terms. For information about benefits and eligibility, see One.Walmart.com/Benefits.

Frequently asked questions

• On average, how long does it take to fill out an application?
  
  On average, it takes 45-60 minutes to complete your application for the first time. Subsequent applications will take less time to apply as our system saves some of your application information. Please note that some positions require the completion of assessments in order to receive consideration for that role. Those would take additional time.
  
  
• Can I change my application after submitting?
  
  No, you cannot change your application after submitting, so please make sure that everything is finalized before you hit the submit button.
  
  
• How do you protect my personal information?
  
  Processing of information on paper is minimal, and Walmart processes application information using an applicant tracking system (ATS). Access to the data within the ATS is restricted to authorized personnel, and the system itself is held to high security standards by Walmart.
  
  
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