Principal System Engineering
Plano, Texas
JOB TITLE: Principal System Engineering
JOB LOCATION: 3400 W Plano Pkwy., Plano, TX 75075
DUTIES: Responsible for partnering with the various Consumer Technology Experience (CTx), Development, Operations/Infrastructure, and Solution Architect teams in designing a comprehensive Performance Engineering framework based on the needs of the business. Responsible for planning, designing, and rolling out Performance Engineering Test solutions to avoid disruption and re-engineering costs through the early detection of defects by helping build Performance at the onset of a project. Directly responsible for cloud platform planning, creation, & maintenance of applications residing on our public cloud instances Possess expert level working knowledge of all key methodologies, strategies, technology, and experience of a performance & cloud engineer. Mentor junior level resources and be able to serve as a guide for peer team members in test engineering and quality strategic organizations. Design robust Performance Test Strategies that will validate impact of changes to performance of individual applications as well as the consumer technology ecosystem. Participate and provide recommendations for ensure Performance is built into the design of a solution. Work closely with Vendor/Partner teams for execution of load tests based on software delivery/release schedule. Review performance test results and ensure all aspects of infrastructure and application responsiveness are evaluated for delivery to production. Provide key SME leadership within Consumer Quality Engineering (CQE) team on Transformative Efforts and implement the best industry practices to Performance Testing. Design and implement automated Performance Testing in the CI/CD pipeline. Define and implement post-mortem / root-cause analysis processes – develop improved testing scenarios based upon analysis. Performing workload, future growth analysis and application endurance certification through automated client scripts using performance assurance tools for automating applications user flows. Implement an automated utility to capturing application transaction traces, sessions, browser network logs, response time for each action performed on the application which will further validate the captured data with the data injected in ELK and Dynatrace for the application flow. Understand the application, technologies and onboard a new application by testing and validating them in lower environments. Identify the gaps/anomalies and provide root cause for the issues identified. Work with vendor support and provide required details for resolution of issues or enhancements needed for application. Work with the application team to capture additional metrics, meta data from the application pages. Work with the application team for code changes where manual injections are needed. Develop documentation (as required) on new or existing systems. Ensure systems meet documented user requirements. Participate in identification, analysis, and resolution of identified issues. Building service simulations of project blocking and overhead services on private premises cloud using Broadcom Dev Test Service Virtualization and Mock Server after analyzing the artifacts generated by interaction pointers which will unfold the overlooked dependencies on both application and process level. Create hypothesis based on production outages in reactive approach. Design chaos scenarios for critical applications in a proactive approach. Execute various chaos scenarios using Gremlin tool to target System Resources (CPU, Memory, Disk & IO), System State (Process killer, Shutdown & Time travel) and Network (Blackhole, DNS, Latency & Packet loss) to test the resiliency of the application. Provide recommendations based on chaos experiments analysis. Collaborate with other teams, including developers, operations, and security, to understand the system's architecture and identify potential weaknesses. Conduct a detailed volumetric analysis and derive a Workload Model.
REQUIREMENTS: Requires a Bachelor’s degree, or foreign equivalent degree in Electronic Engineering and 5 Years of progressive, post-baccalaureate experience in the job offered or 5 Years of progressive, post-baccalaureate experience in a related occupation utilizing experience for creating and maintaining applications in cloud engineering; proficient experience in automated Performance validation in the software delivery through the CI/CD pipeline; microservices architecture and containerization technologies like Docker and Kubernetes; analysis, design, estimation, project planning and development of CQE solutions for CTX applications in Java along with stakeholder interaction; gather client’s business requirements and check the feasibility of the same with proper gap analysis; performance testing using automated testing tools which generates and executes the test cases and test data; prepare Technical/Business reports and support the bug fix and issues reported in performance testing Phase of a particular release and weekly status reports.
Our Principal System Engineering roles earn between $174,100 - $261,100 yearly. Not to mention all the other amazing rewards that working at AT&T offers.
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:
40Time Type:
RegularLocation:
Plano, TexasIt 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-110857 Date posted 05/28/2026
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