Summer 2027 T-Ads Software Engineering Internship

T-Mobile • Center City, PA

4d

About The Position

T-Mobile’s T-Ads Software Engineering Internship is an 11-week paid learning experience in which interns contribute to real engineering work, build relationships with interns and leaders, and receive mentorship. Interns join T-Ads, T-Mobile’s Ad Tech team, a collaborative, low-ego group of engineers based mostly in Philadelphia, with teammates in NYC, Amsterdam, Texas, and other remote locations.

The intern will work on the platform behind Digital Out-of-Home (DOOH) advertising, which plans, buys, delivers, and measures campaigns on billboards, Times Square displays, and bus-stop screens. The platform includes an always-on, real-time bidding system. The intern will own a project from start to finish, building a new capability or improving an existing one. Project areas may include the real-time bidstream, backend services, dynamic creative, or web tools used by teams and customers. Interns will work with engineering, Product, Design, and QA, contribute production code, receive and give code review feedback, and may launch their project. They will demo their work to the broader engineering organization at the end of the internship.

Requirements

• Experience with at least one of Python, JavaScript/TypeScript, Go, or Scala, and Git.
• Have built something real through a team project, hackathon, internship, or open-source work.
• Be at least 18 years of age.
• Be legally authorized to work in the United States now and in the future.
• Have one or more courses remaining in a bachelor's or graduate degree program after the internship.

Nice To Haves

• Familiarity with web, backend, or testing concepts, such as React, REST APIs, or SQL.
• Curiosity, collaboration, willingness to question assumptions, and comfort with code reviews.
• Ability to move with urgency, learn quickly, and speak up with ideas.

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 a mentor, Product, Design, and QA.
• Learn the technology stack and systems supporting the project, and ask questions early and often.
• Give and receive feedback through code reviews.
• Ship code to production and potentially launch the project.
• Demo the project to the broader engineering organization at the end of the internship.

Benefits

• Paid 11-week internship
• Mentorship
• Relocation assistance for program participants who reside more than 50 miles from the internship location

What This Job Offers

• Career Level: Intern