Principal System Engineer – Wireless Billing Solutions
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.
Are you passionate about building the future of billing platforms for wireless and broadband products? Join us as a Principal System Engineer and become a key driver of innovation and reliability in our next-generation billing solutions. This role is ideal for a technical expert who thrives on complex challenges, enjoys mentoring others, and wants to shape the architecture of high-performance, scalable platforms that power millions of customer experiences.
The Principal System Engineer designs, develops, and deploys solutions for Wireless, Broadband, and other billing platforms using a third-party SaaS product in an Active/Active setup. This role requires expertise in microservices (aligned with TM Forum standards), Java, Couchbase, Azure, Docker, Kubernetes, and event-driven integrations with Kafka and Confluent Cloud. Responsibilities include customer account management, product catalog integration, pricing, promotions, real-time rating, and complex billing scenarios. The engineer oversees platform operations, ensures performance and reliability, and delivers secure, scalable, and resilient solutions. As an individual contributor and mentor, this role also helps set engineering standards and influences strategy across billing, ordering, and assurance domains.
What you'll do:
Research emerging technologies and recommend system enhancements.
Define target architecture and solutions for BSS transformation.
Serve as SME, designing scalable, resilient system architectures.
Develop impact assessments and solution intent documents.
Lead security-by-design and ensure compliance across platforms.
Oversee CI/CD pipelines, code management, and interface design.
Drive development, integration, and maintenance of technologies.
Support deployment, audit processes, and mentor team members.
Design and develop comprehensive system architectures spanning hardware & software.
Lead design initiatives and develop solutions for security and compliance.
Identify gaps in core platforms or business logic and propose effective solutions.
Decompose EPICs and features into user stories and perform development (coding) to deliver business functionality.
Serve as a key contributor for large-scale technical initiatives and projects.
Manage user story coverage and demo acceptance processes.
Assist with defect resolution activities.
Review and provide robust deployment and backout strategies.
Apply critical thinking and strategic vision to deliver high-impact billing transformation projects.
Develop secure, scalable, resilient, and high-performing solutions with embedded quality and security.
Oversee platform operations, drive continuous improvement, and ensure optimal performance and reliability.
What you'll bring:
8+ years’ experience in system engineering, architecture, or development.
Bachelor’s or Master’s degree in Engineering, Information Systems, Computer Science, or related field.
Extensive billing experience, especially in wireless/broadband, ordering, and assurance.
Experience with event-driven system integrations utilizing Kafka and the Confluent Cloud Platform.
Hands-on expertise in Java, microservices, Couchbase, Azure, Docker, Kubernetes, Kafka, and Confluent Cloud.
Expertise in security by design and compliance.
Experience with AI in application development, quality, monitoring, and scalability.
Proven ability to design high-performance, scalable systems.
Strong technical documentation and collaboration skills.
Excellent problem-solving, critical thinking, and continuous learning mindset.
Our Principal System Engineering earns between $ 158,200-$237,400 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-
#ConsumerTechnologyeXperience
Weekly Hours:
40Time Type:
RegularLocation:
USA:TX:Dallas / Two AT&T Plaza (211 S Akard St) - Dat:211 S Akard StSalary Range:
$141,300.00 - $237,400.00It 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-84891-2 Date posted 10/15/2025
Benefits
Your needs? Met. Your wants? Considered. Take a look at our comprehensive benefits.
- Paid Time Off
- Tuition Assistance
- Insurance Options
- Discounts
- Training & Development
Our hiring process
Apply Now
Confirm your qualifications align with the job requirements and submit your application.
Assessments
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Interview
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Conditional Job Offer
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Background Check
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