Sr Software Engineer, Android

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Job Overview
We are seeking a highly skilled and motivated Android Software Engineer to join the team powering the T-Life app—T-Mobile's flagship mobile experience. In this role, you will contribute to the design, development, and delivery of high-quality, performant, and AI-enabled Android features that reach millions of users.
The Software Engineer is essential for designing, implementing, and deploying scalable mobile software solutions that meet customer requirements and support high-availability environments. This role focuses on Android application development within established architecture, collaborating with engineering teams to build modern, reliable features and integrate backend services—including AI-powered capabilities. Success is measured by the ability to deliver dependable technical solutions, produce clear documentation, and contribute to continuous improvement and innovation that enhances customer experience and supports business goals.

Job Responsibilities

• Develop and maintain Android application features using Kotlin and modern Android frameworks (e.g., Jetpack Compose) within established architectural patterns (e.g., MVVM, Clean Architecture).
• Design and implement solutions that integrate RESTful APIs and backend services, including AI-powered endpoints supporting personalization and intelligent user workflows.
• Collaborate cross-functionally with Product, Design, QA, Backend, and AI teams to deliver high-quality mobile solutions.
• Write maintainable, testable, and scalable code; participate in code reviews and contribute to unit and UI testing.
• Create clear documentation for software code, system designs, and business requirements.
• Support CI/CD and release processes using tools such as Git, Gradle, and Fastlane.
• Monitor application performance and reliability to ensure secure, responsive user experiences across Android devices and OS versions.
• Present ideas to improve systems, processes, or services based on technical research and platform best practices.
• Mentor and coach junior engineers while providing technical leadership across cross-functional teams, promoting knowledge sharing, engineering best practices, operational excellence, and a culture of accountability and continuous improvement.
• Drive execution of daily operational activities, incident remediation, and service improvement initiatives, ensuring projects and operational commitments are successfully delivered through implementation, stabilization, and ongoing support.
• Also responsible for other duties/projects as assigned by business management as needed.

Education and Work Experience

• Bachelor's Degree plus 5 years of related work experience; OR advanced degree with 3 years of related experience. (Required)
• Acceptable areas of study include Computer Science, Software Engineering, Information Management, or equivalent experience in field. (Required)
• 4–7 years of technical engineering experience. (Required)

Knowledge, Skills and Abilities

• Proficiency in Kotlin and Android development frameworks.
• Strong understanding of Android app lifecycle, navigation, permissions, and performance optimization.
• Experience integrating RESTful APIs and handling asynchronous workflows (e.g., Kotlin Coroutines, Flow).
• Familiarity with dependency injection (e.g., Dagger/Hilt) and modern build tools (Gradle).
• Experience working with Git-based workflows and collaborative code review processes.
• Foundational exposure to AI-enabled backend services (e.g., LLM-backed APIs, recommendation systems).
• Communication (Required)
• Customer Service (Required)
• Analytics (Required)
• Technical Writing (Required)

Preferred Qualifications

• Experience with Jetpack Compose for building modern, declarative Android UIs.
• Proficiency with Kotlin Coroutines and Flow for reactive and asynchronous programming.
• Exposure to AI-powered mobile features such as conversational interfaces, on-device inference, or recommendation experiences.
• Familiarity with AI-assisted development tools (e.g., GitHub Copilot, ChatGPT Enterprise, Claude) to accelerate coding, documentation, and code review workflows.
• Experience with app modularization and scalable multi-module Android architectures.
• Knowledge of Android accessibility standards and implementation (e.g., TalkBack, content descriptions).
• Experience with CI/CD environments and mobile release management (e.g., Fastlane, GitHub Actions).
• Familiarity with analytics and performance monitoring tools (e.g., Firebase, Instabug).
• Experience working in Agile/Scrum development environments.

• At least 18 years of age
• Legally authorized to work in the United States

Travel:
Travel Required (Yes/No): Yes, may require up to 10% travel based on business needs.

DOT Regulated:
DOT Regulated Position (Yes/No): No
Safety Sensitive Position (Yes/No): No
 

Base Pay Range: $113,600 - $205,000

Corporate Bonus Target: 15%

The pay range above is the general base pay range for a successful candidate in the role. The successful candidate’s actual pay will be based on various factors, such as work location, qualifications, and experience, so the actual starting pay will vary within this range.

At T-Mobile, employees in regular, non-temporary roles are eligible for an annual bonus or periodic sales incentive or bonus, based on their role. Most Corporate employees are eligible for a year-end bonus based on company and/or individual performance and which is set at a percentage of the employee’s eligible earnings in the prior year. Certain positions in Customer Care are eligible for monthly bonuses based on individual and/or team performance. To find the pay range for this role based on hiring location, https://paylookup.t-mobile.com/paylookup?reqID=REQ356113&paradox=1

At T-Mobile, our benefits exemplify the spirit of One Team, Together! A big part of how we care for one another is working to ensure our benefits evolve to meet the needs of our team members. Full and part-time employees have access to the same benefits when eligible. We cover all of the bases, offering medical, dental and vision insurance, a flexible spending account, 401(k), employee stock grants, employee stock purchase plan, paid time off and up to 12 paid holidays - which total about 4 weeks for new full-time employees and about 2.5 weeks for new part-time employees annually - paid parental and family leave, family building benefits, back-up care, enhanced family support, childcare subsidy, tuition assistance, college coaching, short- and long-term disability, voluntary AD&D coverage, voluntary accident coverage, voluntary life insurance, voluntary disability insurance, and voluntary long-term care insurance. We don't stop there - eligible employees can also receive mobile service & home internet discounts, pet insurance, and access to commuter and transit programs! To learn about T-Mobile’s amazing benefits, check out www.t-mobilebenefits.com.

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.