Principal Software Engineering
Plano, 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.
Join AT&T and help shape the future of communications and technology that connect the world. We value innovators who seek to explore the unknown and challenge the status quo. Bring your bold ideas and fearless spirit to redefine connectivity and transform how people share stories and experiences. At AT&T, you won’t just imagine the future—you’ll build it.
As a Principal Software Engineer, you will play a critical role in the design, development, testing, and deployment of high-performance, scalable software applications. This hands-on engineering position requires strong technical expertise, leadership capabilities, and a passion for delivering high-quality solutions. You will collaborate across teams to drive technical innovation, mentor junior engineers, and ensure adherence to best practices in software development and automation.
What You’ll Do
Lead end-to-end delivery of software solutions—from requirements and design, app tunning through build, test, release, and support
Partner with product, stakeholders, and architects to translate business needs into clear technical designs, interfaces, and estimates
Drive system and service architecture with a focus on scalability, security, reliability, and performance
Set and uphold engineering standards (clean code, TDD/unit testing, CI/CD, observability), and guide teams through code/design reviews
Build and enhance automated testing strategies (integration, end-to-end, regression) and ensure quality in fast-moving environments
Troubleshoot complex production issues across services, infrastructure, and dependencies; lead root-cause analysis and permanent fixes
Collaborate with DevOps/SRE and peer engineering teams to improve deployment, resilience, and operational excellence
Evaluate tools, frameworks, and processes; make pragmatic recommendations that improve developer productivity and customer outcomes
What You’ll Bring
8+ years of professional software engineering experience delivering production-grade systems
Strong experience designing and building distributed services/APIs and integrating across complex systems
Proven ability to lead technical direction, influence across teams, and align stakeholders on solutions and tradeoffs
Hands-on expertise with modern engineering practices: unit testing/TDD, code reviews, CI/CD, and automated quality gates
Solid understanding of non-functional requirements: availability, latency, scalability, security, and maintainability
Experience operating software in production, including incident response, troubleshooting, and improving observability/monitoring
Proficiency with modern cloud-native tooling (e.g., Azure, Kubernetes, GitHub) and a strong grasp of DevOps concepts
Strong database fundamentals and data modeling experience (SQL and/or NoSQL)
Excellent communication skills—able to explain complex technical concepts clearly to technical and non-technical audiences
Our Principal Software Engineering , earns between $174,100-$261,100 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:
Bothell, WashingtonSalary 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-99563-1 Date posted 02/09/2026
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
Apply Now
Confirm your qualifications align with the job requirements and submit your application.
Assessments
You may be required to complete one or more assessments, depending on the role.
Interview
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Conditional Job Offer
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Background Check
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