Summer 2027 Quality Engineering InternshipT-Mobile
Job Summary
T-Mobile is synonymous with innovationand you could be part of the team that disrupted an entire industry! We reinvented customer service, brought real 5G to the nation, and now were 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 wont stop!
Get hands-on experience, trainingand a leg up on a bright future.
T-Mobile didnt become a leader by following the playbook. We got here by breaking it. Were a disruptor that now plays on a higher tier, and were still raising the bar for millions of customers nationwide. If you want to work somewhere that sets the standard instead of matching it, this is your place.This is an 11-week paid learning experience where youll do real work, not busywork. Youll build relationships with other interns and leaders across the company, and youll be paired with mentors who will challenge you to grow skills that matter. Well give you hands-on projects with real stakes, and we expect your creativity and sharp ideas to make an immediate impact. Youll work alongside T-Mobile employees who have your back and who still believe the best ideas can come from anyone.
What Its Like
Our Quality Engineering team sits within Vistar Media (T-Mobile Ads). We are small enough that your work gets seen and big enough that it matters. We partner closely with Engineering, Product, and Business teams to validate new features, catch defects early, and deliver a seamless experience for our customers. A typical week mixes hands-on test development, collaboration with engineers, and team discussions where your questions and ideas carry weight. You dont need a background in advertising or QA frameworks. You need curiosity, a growth mindset, and a drive to learn.
What Youll Do
As a Quality Engineering Intern (SDET), youll develop and maintain automated tests for key workflows on T-Ads Digital Out-of-Home (DOOH) advertising platform. Youll use modern tools such as Cypress and TypeScript while learning testing best practices, debugging techniques, and how automation fits into the software development lifecycle. Your work will reduce manual testing effort, catch defects sooner, and build confidence in a platform that powers digital advertising, helping T-Mobile stay ahead.
Key Responsibilities
- Build and maintain automated tests with Cypress and TypeScript to validate key workflows on the DOOH advertising platform.
- Partner with Quality Engineering, Software Engineering, Product, and Business teams to understand requirements, identify test scenarios, and expand test coverage.
- Run manual and automated tests to find, document, and troubleshoot defects throughout the development lifecycle.
- Join refinement sessions and team discussions to gain exposure to real-world software engineering practices.
- Drive improvements in test automation, regression testing, and overall software quality while learning modern testing methodologies.
What It Takes
- Foundational programming knowledge, with exposure to JavaScript, TypeScript, Python, or Java through coursework, personal projects, or internships.
- Familiarity with software development fundamentals, including object-oriented programming, data structures, debugging, and version control tools such as Git.
- Basic understanding of software testing concepts, REST APIs, or Agile methodologies is a plus. Prior experience with test automation frameworks is not required.
- Strong analytical and problem-solving skills, attention to detail, and a willingness to challenge assumptions and learn new technologies quickly.
- Excellent communication and collaboration skills, with the initiative to take ownership of assigned projects and move with urgency.
- Hands-on experience through academic projects, personal coding projects, or GitHub contributions is highly valued. Professional experience and certifications are not required.
Minimum Qualifications
- At least 18 years of age
- Legally authorized to work in the United States now and in the future
- Must have one or more course(s) remaining in a Bachelors or Graduate degree program post internship
- Employees of T-Mobile or Metro by T-Mobile are ineligible for external Summer Internships, please see Magenta Accelerator if interested
Relocation assistance will be provided to program participants who reside more than 50 miles from the internship location.
Intern wages range from $27/hour to $50/hour. The successful candidates actual pay will be based on education/STEM vs non-STEM designation.
Never stop growing!