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.

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.

As a Principal System Engineer, you’ll be responsible for translating business needs into technical solutions and defining solutions to problems through reasoned application of information technology. You will work primarily on our Microsoft Teams and M365 platform at AT&T. This will include supporting our entire Microsoft Teams instance, as well as building out and developing any new features or initiatives into Microsoft Teams. This will also overlap with other M365 services, so a broad knowledge of how M365 services interact, is a must. You will drive our support relationship between our service and our employees both through issue resolution, as well as new feature and functionality development. You will collaborate with our team, broad AT&T employee teams, as well as directly with Microsoft.

Key Roles and Responsibilities:

Act as a Subject Matter Expert for Microsoft Teams, in order to assist a broad set of employees

Support M365/Teams employees across a wide range of modalities

Ability to go technically deep in Microsoft Teams (and ideally other M365 services), and actively seek solutions to employees needs, as well as communicating to leadership

Designs, develops, documents, and analyzes overall architecture of AT&T’s Microsoft Teams (and ideally other M365 services) instance

Determines integrated hardware and software architecture solutions that meet performance, usability, scalability, reliability, and security needs

Coordinates design and integration of total system including subsystems

Research and recommend technology to improve the current systems

Supports technical initiatives normally as part of a larger project

Works on development of new technologies or maintenance of existing technologies

Exchanges complex technical information and provides training and guidance to others in work areas by breaking down information in a systematic and logical manner

Required Qualifications:

8-10 years of related experience

Desired Education:

Bachelor’s degree in Engineering, Information Systems or related technical field

Desired Qualifications:

3-5 years’ experience directly with M365 services, primarily Microsoft Teams

Experience analysis, troubleshooting, and providing solutions for technical issues (primarily in M365 services)

Certification in Microsoft and/or competing Cloud Technologies strongly preferred

Experience in building multiple versions systems addressing performance and scale

Experience developing technical documentation on applications and systems

Ability to work with technical and business-oriented teams

Our Principal System Engineering earns between $141,300 - $237,400 annually.  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

AT&T is leading the way to the future – for customers, businesses, and the industry. We're developing new technologies to make it easier for our customers to stay connected to their world. Together, we’ve built a premier integrated communications and entertainment company and an amazing place to work and grow. Team up with industry innovators every time you walk into work, creating the world you always imagined.

Ready to #transformdigital with us? Apply now!

#LI-Onsite – Full-time office role

Weekly Hours:

40

Time Type:

Regular

Location:

Dallas, Texas

Salary Range:

$141,300.00 - $237,400.00

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-77212-2 Date posted 08/06/2025