Summer 2026 Support Engineering Internship

T-Mobile • Philadelphia, PA

7h • $26 - $47

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 The Support Engineering team within Vistar, part of T-Mobile Advertising Solutions, plays a critical role in ensuring the reliability and stability advertising technology platforms. We handle escalated technical issues that require engineering expertise, working across multiple systems and layers of the stack. Our team operates as technical generalists, able to quickly investigate, troubleshoot, and resolve complex, time-sensitive problems. We partner closely with client support and engineering teams to deliver high-quality solutions that directly impact customer and stakeholder experience. What You’ll Do As a Support Engineering Intern, you’ll gain hands-on experience supporting a complex, production-grade technology platform. You’ll assist with triaging, investigating, and resolving escalated technical issues while learning best practices for supporting live systems. Throughout the summer, you’ll collaborate with engineers and support partners to identify recurring issues and opportunities for improvement. You’ll also have the opportunity to design, develop, test, and release at least one internal tool to improve operational efficiency.

Requirements

• Currently pursuing a degree in Computer Science, Software Engineering, or a related field
• Strong working knowledge of SQL and Python
• Excellent written communication skills and ability to explain technical concepts clearly
• Curiosity, adaptability, and a strong interest in learning how real-world software systems operate
• 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

Nice To Haves

• Familiarity with JavaScript or TypeScript is a plus
• Previous customer service or support experience is a major plus

Responsibilities

• Troubleshoot and resolve escalated software issues across multiple components of the platform
• Write and maintain SQL queries and Python scripts to investigate data and automate workflows
• Clearly document and communicate technical issues and solutions to non-technical stakeholders
• Develop internal tools and supporting documentation to improve support processes
• Collaborate with engineers and support teams to identify root causes and preventative solutions

What This Job Offers

• Career Level: Intern