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Principal System Engineer (Full-Stack)

AT&T

$158,200 - $237,400
Oct 18, 2025
Dallas, TX, US
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AT&T's Consumer Technology experience team is looking to transform the way they deliver a seamless customer experience with digital at the center of all operations, aiming to revolutionize the digital space and create a better customer experience.

Requirements

  • Hands-on experience with both front-end (UI) and back-end technologies.
  • Preferably Next.js on the UI with Node.js on the backend, or React.js on the UI with Java on the backend.
  • Experience building applications using Generative AI, LLMs & Copilots.
  • 7+ years of experience developing applications utilizing relational databases and/or no SQL databases as part of the overall application architecture.
  • 7+ years of experience in implementing caching techniques for a web application.
  • 7+ years of experience with front-end frameworks like React.js.
  • 7+ years of strong background in object-oriented design principles and design patterns.

Responsibilities

  • Contribute to the development of both Frontend (UI) and Backend (BFF) layers.
  • Build Frontend with React JS and Backend BFF (Backend for Frontend) layer with either Java & Javascript / REST / Graph QL / Node JS / MuleSoft.
  • Create and support the development of responsive/adaptive web applications.
  • Work closely with the UX/UI Designers to create high-quality, innovative, and intuitive user experiences in our products.
  • Employ engineering techniques to build high-performance pages, user and browser-friendly UI / Web solutions.
  • Effectively use Git Hub Co-pilot across SDLC for pair programming, unit test cases, automation test cases, and to write user stories in agile processes to increase developer productivity.
  • Partner with Enterprise, Application Architecture teams and contribute to the detailed design and architecture to enable secure, scalable, and maintainable software.

Other

  • Extremely motivated, highly passionate, and curious about new technologies.
  • Take pride in your work and strive to achieve incredible results and possess superb communication and planning skills.
  • Ability to work successfully with multi-functional teams, principals, and architects.
  • Coordinates optimally across organizational boundaries and geographies.
  • Comfortable working in a fast-paced, highly collaborative environment.