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Senior Data Analyst

Dallas, Texas

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Analyze data sets of millions of customers - and uncover groundbreaking solutions that have a global impact.

"You get to work on multi-million dollar projects from day one using the latest technology, and there are many training opportunities if you want to learn something new."

Sang Han — Senior Data Scientist


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As our Senior, Data Analysis, you will be part of our call container project which recently launched after 3 years in the making!  The goal is to have a single set of validated data for all call center statistics at AT&T.  There is a lot of focus on the project, and this team, in support of its success.

In this role you’ll be validating and analyzing data for completeness and accuracy from AT&T’s external business partners Avaya CMS.  You will follow the path of the data as it is pushed into Data Lakes where additional validations must be completed to ensure it matches the data in the original file transfers.  You will engage with our external partners as needed to resolve any and all discovered anomalies.

This role has some leadership visibility, so you must be comfortable creating PowerPoint presentations in the event something needs to be communicated to leadership.

Key Roles and Responsibilities: 

  • Works directly with the client user community and business analysts to define and document data requirements for data integration and business intelligence applications.
  • Determines and documents data mapping rules for movement of medium to high complexity data between applications. 
  • Supports data selection, extraction, and cleansing for corporate applications, including data warehouse and data marts. 
  • Creates and sustains processes, tools, and on-going support structures and processes. 
  • Extracts and analyzes data from specific applications, systems and/or databases to create reports and provide recommendations based on the analysis of the data. 
  • Investigates and resolves data issues across platforms and applications, including discrepancies of definition, format and function. 
  • Creates and populates meta-data into repositories. 
  • Create data models, including robust data definitions, which may be entity- relationship-attribute models, star, or dimensional models. 
  • Create data flow diagrams and process models and integrates models across functional areas and platforms. 
  • Works closely with DBAs to transition logical models to physical implementation. 
  • Employ data mining techniques to achieve data synchronization, redundancy elimination, source identification, data reconciliation, and problem root cause analysis. 
  • Responsible for quality control and auditing of databases, resolving data problems, and analyzing system changes for quality assurance. 


  • Bachelor’s degree in Information Systems, Engineering, Math or Sciences preferred 
  • 5-8 years’ related data analysis experience
  • Coding experience with SQL, Teradata, Snowflake, Hive, HADOOP or similar required
  • Experience with Tableau
  • Proficiency with MS PowerPoint
  • Knowledge of Call Center Operations/telephony will be a great help

Ready to join our team? Apply today!

Our Senior, Data Analysis earn between $84,900-$169,800 yearly. Not to mention all of the other amazing rewards that working at AT&T offers. From health insurance to tuition reimbursement and paid time off to discounts on products and services just to name a few. There is a lot to be excited about around here.


Job ID 2149286 Date posted 11/29/2021
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