Data Engineer III
WalmartAbout the role
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What you'll do...
Position: Data Engineer III
Number of Positions Available: Two (2)
Job Location: 640 W. California Avenue, Sunnyvale, CA 94086
Duties: Identifies possible options to address the business problems within one's discipline through analytics, big data analytics, and automation. Supports the development of business cases and recommendations. Owns delivery of project activity and tasks assigned by others. Supports process updates and changes. Solves business issues. Supports the documentation of data governance processes. Supports the implementation of data governance practices. Understands, articulates, and applies principles of the defined strategy to routine business problems that involve a single function. Extracts data from identified databases. Creates data pipelines and transform data to a structure that is relevant to the problem by selecting appropriate techniques. Develops knowledge of current data science and analytics trends. Supports the understanding of the priority order of requirements and service level agreements. Helps identify the most suitable source for data that is fit for purpose. Performs initial data quality checks on extracted data. Analyzes complex data elements, systems, data flows, dependencies, and relationships to contribute to conceptual, physical, and logical data models. Develops the Logical Data Model and Physical Data Models including data warehouse and data mart designs. Defines relational tables, primary and foreign keys, and stored procedures to create a data model structure. Evaluates existing data models and physical databases for variances and discrepancies. Develops efficient data flows. Analyzes data-related system integration challenges and proposes appropriate solutions. Creates training documentation and trains end-users on data modeling. Oversees the tasks of less experienced programmers and stipulates system troubleshooting supports. Writes code to develop the required solution and application features by determining the appropriate programming language and leveraging business, technical, and data requirements. Creates test cases to review and validate the proposed solution design. Creates proofs of concept. Tests the code using the appropriate testing approach. Deploys software to production.
Minimum education and experience required: Master’s degree or the equivalent in Computer Science, Information Technology, Engineering (any), or a related field; OR Bachelor's degree or the equivalent in Computer Science, Information Technology, Engineering (any), or a related field and 2 years of experience in software engineering or related experience.
Skills required: Experience with data pipeline schedulers and orchestrators, including Airflow, Automic, and UC4, to facilitate seamless data processing workflows. Experience writing efficient batch data pipelines using object-oriented programming languages including Scala and Python for processing large data sets exceeding one terabyte. Experience designing and creating database tables through comprehensive data modeling tools including Erwin and ER Studio to ensure optimal storage, retrieval, and analysis of large data sets. Experience performing root cause analysis of production incidents and bugs by utilizing logs from tools including Spark YARN, Splunk, and Airflow, as well as notebooks, to identify and implement fixes. Experience with SQL for developing, testing, and deploying
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