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.

AT&T will not hire any applicants for this position who require employer sponsorship now or in the future. 

Join AT&T and reimagine the communications and technologies that connect the world. The Chief Information Office is responsible for advancing information technology performance and delivering solutions with a focus on maximizing ROI, increasing efficiency and enhancing the experience of end users. Guided by experienced leaders, Corporate Systems seamlessly integrate with advanced Technology and Operations to drive our enterprise forward. Our Systems Reliability and Software Delivery teams are unwavering in their commitment to excellence, ensuring every solution is robust and efficient. When you step into a career with AT&T, you won't just imagine the future, you'll create it.

What You’ll Do

As a Principal Software Engineer on the INLAP development team, you will lead the vision, architecture, and implementation of critical services that power fiber service qualification and address data management for AT&T. You will architect complex solutions, drive the design and strategic direction for core application components, and provide deep technical mentorship to elevate the team’s capabilities. Your role will blend technical leadership, cross-team collaboration, and application strategy, delivered at scale.

Key Responsibilities

• Architect, design, and lead the implementation of foundational INLAP components/services.
• Provide strategic technical leadership; set direction for architecture, code quality, and technology adoption.
• Mentor, coach, and develop junior and senior engineers; foster a high-performance engineering culture.
• Collaborate with product owners, solution architects, and senior leadership to define business-aligned technical strategies.
• Evaluate, recommend, and incorporate industry trends and new technologies.
• Lead design and code reviews to ensure high standards in performance, security, reliability, and scalability.
• Take accountability for production-grade deployment, observability, and incident management of core platform services.
• Guide process improvement and champion best practices in Agile, DevSecOps, and system delivery.
• Represent the engineering team with stakeholders and in cross-functional initiatives.

What You’ll Need

• Experience: 7+ years of progressive software engineering experience, including several in architectural, leadership, or staff+ roles delivering complex enterprise systems.
• Education: Bachelor’s or Master’s degree in Computer Science, Engineering, or equivalent experience.
• Vision & Influence: Demonstrated ability to set and drive technical vision, influence business direction, and deliver measurable impact.
• Component/Platform Leadership: Proven history of leading end-to-end delivery for entire applications or major platform components.
• Collaboration & Communication: Strong track record working with business partners, leadership, and large cross-functional teams.

What You’ll Bring

Required Technical Skills

• Expert-level proficiency in multiple programming languages relevant to modern enterprise backend systems.
• Deep mastery of microservices, distributed architecture, API design, and associated security patterns.
• Significant experience designing, integrating, and optimizing complex data systems at scale (SQL, NoSQL, geo-spatial, event-driven).
• Advanced knowledge of cloud-native platforms, DevSecOps practices, CI/CD, containerization, and observability tools.
• Ability to evaluate, select, and champion adoption of new frameworks, platforms, and tools.
• Strong understanding of performance tuning, scalability, and high availability.

Required Soft Skills

• Inspirational technical leadership and mentoring capabilities.
• Exceptional problem-solving, analytical, and critical-thinking abilities.
• Executive-level communication and stakeholder engagement skills.
• Business acumen; able to translate organizational needs into technical direction.
• Commitment to continuous improvement and technical excellence.

Preferred Qualifications

• Experience architecting or modernizing address/domain data management, service qualification, or large telecom OSS/BSS platforms.
• Thought leadership publications, open-source contributions, or speaking in technical domains.
• Industry certifications in cloud, security, or architecture.
• Familiarity with enterprise architecture frameworks.
• Hands-on experience with front-end or full-stack system design is a plus.

#LI-Onsite Full-time office role.

Ready to join our team?

Apply today.

Our Principal Software Engineering jobs 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

Weekly Hours:

40

Time Type:

Regular

Location:

USA:TX:Plano / W Plano Pkwy - Adm:3400 W Plano Pkwy

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-115679 Date posted 07/16/2026