Software Engineer Intern — 11-Week Paid, Real Projects

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

Job summary

T-Mobile offers an 11‑week paid learning internship where you’ll work on real projects, be mentored by engineers, and grow technical skills in advertising technology. You’ll collaborate across teams, contribute to meaningful software, and gain hands‑on experience in a fast‑paced environment.

You’ll join an engineering culture that values curiosity, ownership, and continuous learning, with mentors supporting your growth and development.

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, strong problem‑solving skills, and a drive to learn new technologies
• Clear communication, a collaborative mindset, and the initiative to take ownership
• No prior internship needed. Academic, personal, and open‑source projects count

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
• Apply engineering best practices, development tools, and modern technologies

Skills

Programming languages

Web development basics

Problem solving

Communication

Education

Bachelor's or Graduate degree program

Tools

Git

REST APIs

SQL

AWS

Job description

T-Mobile offers an 11‑week paid learning internship where you’ll work on real projects, be mentored by engineers, and grow technical skills in advertising technology. You’ll collaborate across teams, contribute to meaningful software, and gain hands‑on experience in a fast‑paced environment.

You’ll join an engineering culture that values curiosity, ownership, and continuous learning, with mentors supporting your growth and development.