Dallas, Texas, United States
3 hours ago
Principal Software Engineering

Job Description:

This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

What you'll do:

Join a strategic initiative to transform our broadband device software development organization. As a Software Engineer, you will contribute to the development of high-quality, innovative software for the next generation of broadband gateways serving 15 million+ customers. You willleverageyourexpertiseto drive technical excellence, integrate AI solutions, and champion a quality-first approach to software delivery. Your individual contributions will help differentiate our software in a highly competitive market and play a vital role in shaping industry-leading products.

Embedded Linux Software development for Broadband Customer Premise Equipment (CPE). 

MigratingCPEfrom a proprietarysoftwareplatform to an OpensourcePrplware(OpenWRT) basedsoftware solution.Design, Develop and Documentexisting systems to improve reliability and develop new innovative features.Software development for new Hardware withcutting-edgefeatures and technology.Manage ongoing software architectural updates that include newPrplware,OpenWRTand Linux Kernel versions.Development in an Agile environment with up to 5 releases a year.Develop automated testing tovalidatenew features. Develop applications to run in a Lifecycle Management (LCM) containeron the Broadband CPE. 

What you'll bring:

Knowledge of Linux operatingsystem, process execution, multi-process environments, inter-process communication. Good understanding of networking fundamentals, UDP/TCP basics, packetflow through the Linux packet processing stack.Understanding ofLinuxfirewalland routing concepts. Knowledge of common networking protocols: DHCP, DNS. Familiarity withtcpdumpand network protocol analysis.Knowlegeofwificoncepts, AP and station roles,associationand authentication ofwifistations, configuration ofssids.Familiarity with thegcctoolchain and debugging stack traces. Familiarity with syslog and logging concepts.Experience in an Agile development environment.Extensive experience with C programming.Familiarity with standard C libraries, and other common libraries likelibssl,libcrypto,libcurl. Knowledge ofprplwarelibraries. Familiarity with theOpenWrtbuild system, and its IPC mechanismubus,overlayfs, and its config system UCI.7+ years of experience in embedded software development.Track recordof creatinginnovative solutions and new applications throughthe design,development, andcoding forinnovative Consumer and businessapplications.  

What you'll need:

Bachelorsdegree (BS/AA)desiredin Computer Scienceor equivalent.  

What we offer:

A pivotal leadership role in reshaping our broadband software capabilities.Opportunity to build a modern, AI-augmented engineering culture.Direct impact on millions of customers and the company’s market position.Competitive compensation and benefits.

Our Principal Software Engineers earn between  $174,100.00 - $261,100.00 USD Annual. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.  

​Joining our team comes with amazing perks and benefits:

Medical/Dental/Vision coverage  401(k) plan  Tuition reimbursement program  Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)  Paid Parental Leave  Paid Caregiver Leave  Additional sick leave beyond what state and local law require may be available but is unprotected  Adoption Reimbursement  Disability Benefits (short term and long term)  Life and Accidental Death Insurance  Supplemental benefit programs: critical illness/accident hospital indemnity/group legal  Employee Assistance Programs (EAP)  Extensive employee wellness programs  Employee discounts up to 50% off on eligible AT&T mobility plans and accessories,AT&T internet (and fiber where available) and AT&T phone.

#LI-Onsite – Full-time office role-

Ready to join our team? Apply today.

Weekly Hours:

40

Time Type:

Regular

Location:

Dallas, Texas

Salary Range:

$174,100.00 - $261,100.00

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Job ID R-99082 Date posted 01/29/2026
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