Summer 2026 Associate Software Engineer Internship

T-Mobile

Posted about 1 month ago

Internship

Philadelphia, Pennsylvania

In Person

Smart Summary

Interns will assist in designing, developing, testing, and maintaining software applications while writing clean, documented code under senior engineer guidance. They will also participate in code reviews, collaborate with cross-functional teams to understand requirements, and help improve system performance and reliability.

T-Mobile is looking for a Summer 2026 Associate Software Engineer Intern! You should be currently pursuing a bachelor’s degree in computer science, software engineering, or a related field. Key skills include basic knowledge of programming languages (Java, Python, JavaScript, or Typescript) and strong communication skills to work effectively in a team environment.

Must Have Skills for ATS

Software Engineering

Design

Development

Testing

Maintenance

Code Reviews

Debugging

Agile

CI/CD

Communication

Teamwork

Problem Solving

Java

Python

JavaScript

Typescript

Job Description

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.

Learn. Achieve. Build a career. 

T-Mobile is revolutionizing the wireless industry for millions of customers nationwide. Working here means rolling up your sleeves and redefining the status quo with a team that has your back every step of the way!  

This is an 11-week paid learning experience during which you’ll be able to connect and network with other interns and leaders within the company. We invite you to come innovate with mentors who will challenge you to develop meaningful skills. You’ll contribute your creativity and outstanding ideas, while working alongside T-Mobile employees. We’ll give you hands-on projects and the chance to create an immediate impact. 

What It’s Like

As an Associate, Software Engineer Intern, you’ll be part of a collaborative, fast-paced engineering environment where learning is built into the work. You’ll work alongside experienced software engineers, product managers, and designers who are invested in your growth and success. This internship offers hands-on experience building real-world software, exposure to modern development practices, and opportunities to contribute to projects that make an impact.

You’ll be encouraged to ask questions, share ideas, and experiment while gaining insight into how software is designed, built, tested, and delivered at scale.

What You’ll Do

You’ll apply your technical skills to meaningful projects while learning industry best practices. Through mentorship and guided assignments, you’ll gain experience across the software development lifecycle and develop a strong foundation for a career in software engineering.

Key Responsibilities

  • Assist in designing, developing, testing, and maintaining software applications

  • Write clean, readable, and well-documented code under the guidance of senior engineers

  • Participate in code reviews and incorporate feedback to improve code quality

  • Collaborate with cross-functional teams to understand requirements and deliver solutions

  • Debug issues and help improve system performance and reliability

  • Learn and apply modern development tools, frameworks, and methodologies (e.g., Agile, CI/CD)

  • Contribute ideas to improve products, processes, and engineering practices

What It Takes

  • Currently pursuing a bachelor’s degree in computer science, Software Engineering, or a related field

  • Basic knowledge of one or more programming languages (such as Java, Python, JavaScript, or Typescript)

  • Familiarity with data structures, algorithms, and object-oriented programming concepts

  • Interest in learning new technologies and solving technical problems

  • Strong communication skills and the ability to work effectively in a team environment

  • Eagerness to learn, take feedback, and grow as a software engineer

Minimum Qualifications  

  • At least 18 years of age 

  • Legally authorized to work in the United States 

  • Must be actively enrolled in a Bachelor's degree program 

  • Employees of T-Mobile or Metro by T-Mobile are ineligible for Internships 

Employer does not sponsor work visas for this position. Note that this also applies to individuals who are students in F-1 status who desire sponsorship after they complete their education.  

Relocation assistance may be provided to program participants who reside more than 50 miles from the internship location. 

Intern wages range from $26/hour to $47/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, 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.

T-Mobile

As the supercharged Un-carrier, T-Mobile US, Inc. (NASDAQ: TMUS) is powered by an award-winning 5G network that connects more people, in more places, than ever before. With T-Mobile’s unique value proposition of best network, best value, and best experiences, the Un-carrier is redefining connectivity and fueling competition while continuing to drive the next wave of innovation in wireless and beyond. Headquartered in Bellevue, Wash., T-Mobile provides services through its subsidiaries and operates its flagship brands, T-Mobile, Metro by T-Mobile, and Mint Mobile.

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