New

Summer 2026 Quality Engineering Internship

T-MOBILE USA, Inc.
relocation assistance
United States, Pennsylvania, Philadelphia
21 South 11th Street (Show on map)
Feb 09, 2026
T-Mobile is synonymous with innovation-and you could be part of the team that disrupted an entire industry! We reinvented customer service, brought real 5G to the nation, and now we're shaping the future of technology in wireless and beyond. Our work is as exciting as it is rewarding, so consider the career opportunity below as your invitation to grow with us, make big things happen with us, above all, #BEYOU with us. Together, we won't stop! Get hands-on experience, training-and a leg up on a bright future. Learn. Achieve. Build a career. T-Mobile is revolutionizing the wireless industry for millions of customers nationwide. Working here means rolling up your sleeves and redefining the status quo with a team that has your back every step of the way! This is an 11-week paid learning experience during which you'll be able to connect and network with other interns and leaders within the company. We invite you to come innovate with mentors who will challenge you to develop meaningful skills. You'll contribute your creativity and outstanding ideas, while working alongside T-Mobile employees. We'll give you hands-on projects and the chance to create an immediate impact. What It's Like Our Quality Engineering team plays a critical role in delivering reliable, high-quality digital experiences that millions of T-Mobile customers rely on every day. We work closely with engineering and product partners to ensure new features are thoroughly tested, performant, and ready for real-world use at scale. By building strong automation and identifying issues early, the team helps accelerate releases while maintaining customer trust. Our work directly impacts platform stability, user satisfaction, and the overall success of T-Mobile's customer-facing applications. What You'll Do As a Quality Engineering Intern, you'll gain hands-on experience contributing to real production systems throughout the summer. You'll write and maintain automated end-to-end UI tests using Cypress and TypeScript for modern web applications, as well as develop automated API tests to validate backend services and integrations. You'll collaborate closely with developers and QA engineers to understand new features, reproduce bugs, and ensure critical user flows are well covered. Your work will help improve test reliability, increase automation coverage, and support faster, higher-quality releases. Key Responsibilities Build automated UI test cases using Cypress and TypeScript to validate user workflows, edge cases, and regression scenarios Create and maintain automated API test suites to verify request/response behavior, status codes, and data accuracy Debug failing tests, investigate defects, and document issues with clear reproduction steps and supporting evidence Maintain and refactor existing test code to keep the automation suite stable, readable, and scalable Support test execution within CI/CD pipelines, review test results, and help reduce flaky tests What It Takes Currently pursuing a degree in Computer Science, Engineering, Information Systems, or a related technical field Basic programming experience with JavaScript or TypeScript Understanding of web applications and how front-end and back-end systems interact Strong attention to detail with a curiosity for edge cases and unexpected behaviors Ability to clearly communicate bugs, test results, and technical findings Eagerness to learn test automation, software quality best practices, and modern development workflows Minimum Qualifications At least 18 years of age Legally authorized to work in the United States Must be actively enrolled in a Bachelors or Graduate degree program Employees of T-Mobile or Metro by T-Mobile are ineligible for Internships Employer does not sponsor work visas for this position. Note that this also applies to individuals who are students in F-1 status who desire sponsorship after they complete their education. Relocation assistance may be provided to program participants who reside more than 50 miles from the internship location. Intern wages range from $26/hour to $47/hour. The successful candidate's actual pay will be based on education/STEM vs non-STEM designation. 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, 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.