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Senior Applications Developer

El Segundo, California

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Discover the undiscoverable.

"AT&T allows me to work on projects that will be seen by millions of customers."

Megan T. — Sr. Specialist, Software Engineer

"I find it incredibly rewarding to be out and see customers enjoying a product I spent my time perfecting."


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At AT&T, we’re connecting the world through the latest tech, top-of-the-line communications and the best in entertainment. Innovation powers all that we do, and our groundbreaking solutions deliver compelling communication and entertainment experiences to millions of customers worldwide. As part of our team, your next big idea could be our newest innovation. Here’s your opportunity to combine your passions for entertainment, media and technology to transform our company and your career.  

Preferred locations are Dallas, TX, Atlanta, GA and El Segundo, CA.  Other locations may be considered.

This Senior- Applications Developer analyzes data in response to new business requests, performing maintenance and changes on interfaces, and identifies and resolves data discrepancies across multiple business applications.


  • Work 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.
  • Adheres to and promotes the use of data administration standards.
  • 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.
  • May create data models, including robust data definitions, which may be entity- relationship-attribute models, star, or
  • dimensional models.
  • May also 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.
  • May be responsible for employing data mining techniques to achieve data synchronization, redundancy elimination, source identification, data reconciliation, and problem root cause analysis.
  • May also be responsible for quality control and auditing of databases, resolving data problems, and analyzing system changes for quality assurance
  • Responsible for managing workstreams and deliverables


  • 5 – 8 years’ relevant, related data analysis experience
  • Bachelor’s degree in Information Systems, Engineering, Math, or Sciences; focus on Data Analytics preferred
  • Experience implementing SalesForce Marketing Cloud is highly desirable; knowledge of custom configuration of SF campaign products
  • Python and PySpark
  • Ability to manage and execute on very detailed tasks
  • Ability to consistently meet deadlines and exhibit strong follow-through skills
  • Ability to take ownership and accountability for achieving objectives
  • Excellent problem solving, analytical, research and quantitative analysis skills
  • Proficiency in PowerPoint, Excel, Word and other standard office computer applications
  • Experience using Unica Campaign, including Unica and Aprimo application experience
  • Database management, ETL scripting, and automation
  • Experience with Unix/Linux
  • Knowledge of campaign performance reporting
  • Familiarity with general Compliance, CPNI and CANSPAM laws

Ready to join our team? Apply today!

Our Senior- Applications Developers earn between $ 105000 – $ 210100 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 2154825 Date posted 09/23/2021
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