Principal Software Engineering
Dallas, Texas
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:
40Time Type:
RegularLocation:
Dallas, TexasSalary Range:
$174,100.00 - $261,100.00It 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
Benefits
Your needs? Met. Your wants? Considered. Take a look at our comprehensive benefits.
- Paid Time Off
- Tuition Assistance
- Medical and dental plans
- Discounts
- Training & Development
Our hiring process
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Assessments
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Interview
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Conditional Job Offer
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Background Check
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