At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees get the same big love we give our customers. All team members receive a competitive base salary and compensation package - this is Total Rewards. Employees enjoy multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and access to free, year-round money coaches. That’s how we’re UNSTOPPABLE for our employees!Position summaryT-Mobile is America’s supercharged Un-carrier, delivering an advanced 4G LTE and transformative nationwide 5G network that will offer reliable connectivity for all. Sr. Engineers, SDET located in Frisco, TX, will test systems including design, develop, and maintain automation systems and tools to be used by development and test engineers.Position duties and responsibilities include, but are not limited to:Analyze code coverage using industry standard tools such as SonarQube.Oversee automated tests integration into the Continuous Delivery Pipeline.Design and author test cases for unit, functional, performance, scalability, and durability testing where applicable.Manage and groom the automated and manual test suites regularly to ensure proper balance between coverage and fast feedback cycles.Work with IT partner teams to provide test data by request, creation, or modification for all phases of the delivery process via a repeatable and automated process.Grow and maintain technical skills and expertise through continuing education and training.Practice leadership, modeling, and coaching.Additionally, provide internal training on relevant skills and tools that support Continuous Testing.Contribute to Test Community of Practice to evolve testing practices, quality standards and tools.Lead defect management.Interface with external teams on test strategy and ensure alignment to test execution.Influence and drive quality across teams, discipline, and the organization.Grow and maintain technical skills and expertise through continuing education and training.Test systems including requirements gathering.Ensure requirements and/or user stories are testable.Clarify any ambiguity with requirements, user stories, design and other artifacts produced as part of the product lifecycle.Provide estimate for user stories and tasks.Direct testability of requirements and/or user stories.Lead and provide input to all test activities.Closely coordinate with both Dev and Ops regarding testing practices and ensure quality thresholds are met.Contribute to design, design reviews and code reviews.Telecommuting is permitted, but applicant must work from the worksite location at least 3-4 days per week.No additional national or international travel is anticipated.Skill requirements: (1) Developing and maintaining automation frameworks (Tosca, Selenium, Cypress, Playwright) for RESTful services, APIs, and UI testing using Java, Python and Powershell scripting; integrating with CI/CD pipelines (Jenkins, GitLab CI, Azure DevOps) to streamline regression and integration testing;(2) Executing system integration, user acceptance, regression testing using automation solutions and data integrity testing using Tosca DI ETL (Extract, Transform, and Load) solutions with Oracle SQL Developer tool, strong defect triage, RCA, and test data management skills;(3) Delivering or supporting automation projects from requirements through release, translating business needs into testable components, providing LOE estimates, and leading demos and feedback cycles with customers;(4) Providing mentorship and technical oversighting to other SDETs & team members, conducting code reviews, implementing automation standards, and collaborating enterprise-wide to drive quality engineering practices and resource planning;(5) Appling Agile and Waterfall methodologies with established gating criteria, leveraging tools such as JIRA, qTest, and TestRail to ensure traceability, readiness, and quality across the SDLC. Reporting tools such as Tableau or PowerBi; and(6) Understanding of SDLC, embedding QA within CI/CD pipelines, partnering with DevOps and product teams to enforce quality gates, and championing shift-left testing practices for early defect prevention.Experience and education requirements:PRIMARY REQUIREMENTS: Master’s degree in Computer Science, Electronic Engineering, or related field or its foreign equivalent, and 3 years of relevant work experience.ALTERNATIVE REQUIREMENTS: Bachelor’s degree in Computer Science, Electronic Engineering, or related field or its foreign equivalent, and 5 years of relevant work experience.Additional: Location: Frisco, TXThis position is eligible for the employee referral program.How to apply:Visit https://careers.t-mobile.com/Create a candidate profile and apply to REQ371725.OTHER: Work hours: 40 hours/week. Texas Pay Range: $156,998.00 to $162,000.00/year.The pay range above is the general base pay range for a successful candidate in the state listed. The successful candidate’s actual pay will be based on various factors, such as work location, qualifications, and experience.At T-Mobile, employees in regular, non-temporary roles are eligible for an annual bonus or periodic sales incentive or bonus, based on their role. Most Corporate employees are eligible for a year-end bonus based on company and/or individual performance and which is set at a percentage of the employee’s eligible earnings in the prior year. Certain positions in Customer Care are eligible for monthly bonuses based on individual and/or team performance, while Retail and Business Sales roles are eligible for monthly or quarterly sales incentives. And since we are ALL owners, EVERY employee at T-Mobile is eligible for an Annual Stock Grant. For information about T-Mobile’s amazing benefits, check out https://careers.t-mobile.com/ At least 18 years of ageLegally authorized to work in the United StatesTravel:Travel Required (Yes/No): NoDOT Regulated:DOT Regulated Position (Yes/No): NoSafety Sensitive Position (Yes/No): No Candidate’s pay will be based on various factors, such as work location, qualifications, and experience. At T-Mobile, employees in regular, non-temporary roles are eligible for an annual bonus or periodic sales incentive or bonus, based on their role. Most Corporate employees are eligible for a year-end bonus based on company and/or individual performance and which is set at a percentage of the employee’s eligible earnings in the prior year. Certain positions in Customer Care are eligible for monthly bonuses based on individual and/or team performance. At T-Mobile, our benefits exemplify the spirit of One Team, Together! A big part of how we care for one another is working to ensure our benefits evolve to meet the needs of our team members. Full and part-time employees have access to the same benefits when eligible. We cover all of the bases, offering medical, dental and vision insurance, a flexible spending account, 401(k), employee stock grants, employee stock purchase plan, paid time off and up to 12 paid holidays - which total about 4 weeks for new full-time employees and about 2.5 weeks for new part-time employees annually - paid parental and family leave, family building benefits, back-up care, enhanced family support, childcare subsidy, tuition assistance, college coaching, short- and long-term disability, voluntary AD&D coverage, voluntary accident coverage, voluntary life insurance, voluntary disability insurance, and voluntary long-term care insurance. We don't stop there - eligible employees can also receive mobile service & home internet discounts, pet insurance, and access to commuter and transit programs! To learn about T-Mobile’s amazing benefits, check out www.t-mobilebenefits.com.Never stop growing! As part of the T-Mobile team, you know the Un-carrier doesn’t have a corporate ladder–it’s more like a jungle gym of possibilities! We love helping our employees grow in their careers, because it’s that shared drive to aim high that drives our business and our culture forward. By applying for this career opportunity, you’re living our values while investing in your career growth–and we applaud it. You’re unstoppable! T-Mobile USA, Inc. is an Equal Opportunity Employer. All decisions concerning the employment relationship will be made without regard to age, race, ethnicity, color, religion, creed, sex, sexual orientation, gender identity or expression, genetic information, national origin, religious affiliation, marital status, citizenship status, veteran status, the presence of any physical or mental disability, or any other status or characteristic protected by federal, state, or local law. Discrimination, retaliation or harassment based upon any of these factors is wholly inconsistent with how we do business and will not be tolerated. Talent comes in all forms at the Un-carrier. If you are an individual with a disability and need reasonable accommodation at any point in the application or interview process, please let us know by emailing ApplicantAccommodation@t-mobile.com or calling 1-844-873-9500. Please note, this contact channel is not a means to apply for or inquire about a position and we are unable to respond to non-accommodation related requests.