About the role#
This is an 11-week paid internship for Summer 2027 based in Philadelphia. You will work within the Quality Engineering team for T-Mobile Ads. This role offers hands-on experience where you will contribute to real projects alongside mentors and engineering teams. You will gain exposure to software development lifecycles, testing methodologies, and automation tools.
What you'll do#
- Build and maintain automated tests using Cypress and TypeScript to validate workflows on the digital advertising platform.
- Partner with Quality Engineering, Software Engineering, Product, and Business teams to understand requirements and expand test coverage.
- Run manual and automated tests to identify, document, and troubleshoot defects.
- Participate in refinement sessions and team discussions to learn real-world engineering practices.
- Drive improvements in test automation and regression testing processes.
What you'll need#
- Currently pursuing a Bachelors or Graduate degree in Computer Science or Computer Engineering with at least one course remaining after the internship.
- Foundational programming knowledge with exposure to JavaScript, TypeScript, Python, or Java.
- Familiarity with software development fundamentals such as object-oriented programming, data structures, debugging, and Git.
- Strong analytical, problem-solving, and communication skills with high attention to detail.
- Basic understanding of software testing concepts, REST APIs, or Agile methodologies is preferred but not required.
- Must be at least 18 years of age and legally authorized to work in the United States.
Location & details#
- Location: Philadelphia, Pennsylvania.
- Modality: On-site.
- Employment: Full-time internship.
- Sponsorship: Not available.
About T-Mobile
T-Mobile is a telecommunications company based in Bellevue, Washington. It operates a 5G network that provides wireless services to consumers and businesses. The company manages several brands including Metro by T-Mobile and Mint Mobile. It functions as a public company with a workforce of over 10,000 employees.
How to get in at T-Mobile
Securing an internship at T-Mobile requires speed because early applicants often have their resumes reviewed before the volume of candidates becomes unmanageable. Intern Insider sends an instant alert the moment a role matching your target is published, which helps you apply among the first and get your profile seen before the pile grows. Reaching out to the right people often yields better results than submitting an application into a general queue. Intern Insider surfaces the recruiters behind T-Mobile roles so you can contact them directly to ask about the position or a referral, which materially improves your response rates.
