T-Mobile Software Engineering Intern - Summer 2026

T-Mobile is seeking Software Engineering Interns for Summer 2026 to help build the digital experience for the Un-carrier. As an intern on one of our product engineering teams, you will contribute to T-Mobile.com, the T-Life mobile app, the retail POS platform, or internal developer tools. You'll write, test, and ship production code, participate in agile ceremonies, pair with senior engineers on architecture decisions, and own a measurable project during your 12-week summer stint. Tech stack includes Java/Kotlin, Node.js, React, AWS, and GraphQL. Minimum qualifications: currently pursuing a Bachelor's or Master's in Computer Science, Software Engineering, or a related field; expected graduation between December 2026 and June 2028; at least one internship or substantial project demonstrating OOP, algorithms, and version control. Hourly pay ranges $35-$52 depending on classification. Onsite at T-Mobile HQ in Bellevue, WA with relocation stipend.