Summer 2027 T-Ads Software Engineering Internship

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.

T-Mobile didn’t become a leader by following the playbook. We got here by breaking it. We’re a disruptor that now plays on a higher tier, and we’re 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 you’ll do real work, not busywork. You’ll build relationships with other interns and leaders across the company, and you’ll be paired with mentors who will challenge you to grow skills that matter. We’ll give you hands-on projects with real stakes, and we expect your creativity and sharp ideas to make an immediate impact. You’ll work alongside T-Mobile employees who have your back and who still believe the best ideas can come from anyone.

What It’s Like
You’ll join T-Ads, the Ad Tech team at T-Mobile. We’re a small, tight-knit group of engineers, mostly in our Philadelphia office, with teammates in NYC, Amsterdam, Texas, and other remote locations. We’re small enough that you’ll be seen and heard, and big enough that your work matters. Our culture is collaborative and low-ego: people help each other, code reviews are part of everyday life.

What You’ll Do
You’ll work on the platform behind Digital Out-of-Home (DOOH) advertising. It’s the software that plans, buys, delivers, and measures campaigns on billboards, Times Square displays, and bus-stop screens. It runs on an always-on, real-time bidding system, so you’ll work on a high-scale product with real users. You’ll own a project from start to finish, building something new or improving something that already exists. Depending on team needs and your interests, that could be the real-time bidstream, backend services, dynamic creative, or the web tools our teams and customers use.

Key Responsibilities

- Write, review, and test production-ready code as part of a team of engineers

- Plan and break down a project from start to finish with your mentor, Product, Design, and QA

- Learn the tech stack and the systems that support your project, and ask questions early and often

- Give and receive feedback through code reviews from day one

- Ship real code to production, with the chance to launch your project

- Demo your project to the broader engineering org at the end of the internship

What It Takes

- Experience with at least one language (Python, JavaScript/TypeScript, Go, or Scala) and Git

- Built something real: a team project, hackathon, internship, or open-source work

- Familiarity with web, backend, or testing concepts (React, REST APIs, SQL) is a plus

- Curious and collaborative, willing to question assumptions, and comfortable with code reviews

- Moves with urgency, learns fast, and speaks up with ideas

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 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, 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.