Paid Software Engineering Internship: Build Real Systems

T-Mobile USA; Philadelphia (Philadelphia County); On-site; USD 37,000 - 69,000; Full time

Job summary

T-Mobile USA is offering an 11-week paid internship designed to give interns hands-on experience with real projects in digital advertising tech. You will work with experienced engineers on frontend and backend features, APIs, and cloud infrastructure, while being mentored to grow skills that matter.

The program emphasizes collaboration, ownership, and continuous learning, with mentors and cross-team interactions to broaden your impact on production systems.

Qualifications

• Foundational knowledge of programming concepts, data structures, and software development principles.
• Experience with at least one language such as JavaScript, TypeScript, Python, or Java.
• Familiarity with web development, REST APIs, SQL, Git, or AWS is a plus.
• Curiosity, problem-solving, and a drive to learn new technologies.
• Clear communication and initiative to take ownership.

Responsibilities

• Build, test, and maintain features across frontend applications and backend services.
• Partner with engineers, product managers, and QA to turn requirements into working solutions.
• Contribute to code reviews, debugging, testing, and technical discussions.
• Investigate issues and identify improvements that raise software quality and reliability.

Skills

JavaScript

TypeScript

Python

Java

REST APIs

SQL

Git

AWS

Education

Bachelor's or Graduate degree in progress

Tools

AWS

Git

SQL

Job description

T-Mobile USA is offering an 11-week paid internship designed to give interns hands-on experience with real projects in digital advertising tech. You will work with experienced engineers on frontend and backend features, APIs, and cloud infrastructure, while being mentored to grow skills that matter.

The program emphasizes collaboration, ownership, and continuous learning, with mentors and cross-team interactions to broaden your impact on production systems.