Summer 2026 Associate Software Engineer Internship
About The Position
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 At T-Mobile, we’re reimagining how technology connects people, businesses, and communities—and that includes how brands show up in the physical world. As a Software Engineering Intern on our Traditional Out-Of-Home (OOH) team, you’ll join a collaborative, fast-moving environment that feels startup-like but with the scale and impact of a global brand. You’ll work alongside a close-knit group of experienced engineers who value mentorship, ownership, and shipping meaningful work. What You’ll Do Throughout the summer, you’ll work on hands-on engineering projects that directly support the technology powering how out-of-home advertising is planned and purchased. You’ll contribute to building and modernizing UI components, assist with API integrations, and support enhancements to workflows that make OOH advertising more accessible and effective for businesses of all sizes. As part of an agile team, you’ll collaborate closely with engineers, product managers, and designers to deliver real product features. Your work will have tangible impact, helping improve the experience for advertisers using T-Mobile’s OOH platforms.
Requirements
- Currently pursuing an undergraduate degree in Computer Science or a related field (Engineering, Math, Physics, etc.)
- Proficiency in at least one programming language; experience with JavaScript frameworks is a plus
- Familiarity with Git and modern version control workflows
- Understanding of basic data structures and algorithms
- Ability to work in a hybrid setting, including regular in-office presence
- At least 18 years of age
- Legally authorized to work in the United States
- Must be actively enrolled in a Bachelors or Graduate 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.
Responsibilities
- Design, develop, and maintain efficient, well-tested software solutions
- Collaborate with engineers and product partners in an agile, cross-functional environment
- Troubleshoot, debug, and enhance existing systems and applications
- Participate in code reviews and incorporate feedback from mentors and peers
- Contribute to projects with real business impact and engage in team meetings, demos, and learning sessions
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What This Job Offers
Career Level
Intern
