Principal Engineer, Software - Android

• Drives projects with the Product, UX/UI and Backend teams to design, build and extend consumer facing new products, platforms, and features
• Improve product quality through code reviews, writing effective unit tests
• Ability to digest feature requirements and high-level end to end design to guide in coding approach and work breakdown
• Ability to produce a low-level design document to detail feature implementation
• Presents project improvement scenarios to management for consideration
• Lead development team in building native functionality with optimization and expansion to support T-Mobile’s Digital First mission
• Present highly technical concepts to both technical and non-technical decision-makers
• Continuously learns, builds content, and guides others specific subject areas
• Informally coaches and gives to the development of others through mentoring or in house workshops and learning sessions
• Develops engineers across functional teams on technology decisions
• Lead the team in developing code patterns and standards that ensure security, stability, and scalability
• Influence technology and policy decisions made across the VP organization
• Understand financial decisions, including NPV and ROI, based on customer experience/business drivers
• Maintain state of technology knowledge related to Android platform development Android software versions, and Android mobile platform challenges and opportunities
• Understands system protocols, how systems operate and data flows
• Aware of current technology benefits
• Encouraged to independently develop a full software stack
• Understands the building blocks, interactions, dependencies, and tools required to complete software and automation work
• Independent study of current technology is expected
• Interact with system engineers to define system requirement and/or vital requirements for automation
• Ability to partner effectively and contribute to collaborative discussions with the broader Android development community and internally among T-Mobile App SMEs that would make the processes or tools more effective within a given VP function
• Develops, designs, and implements new ideas which use new frameworks to improve an existing or new system/process/service
• Contributes to the creation of company IPR
• Translate business requirements into technical requirements for large customer facing products (millions of users), starting from design through implementation at the Director level
• Contributes to industry professional norms
• Contributes to the protection of company IPR

• 7+ years technical engineering experience
• Experience in mobile software development using Kotlin, Jetpack Compose or Android SDK
• Developing sophisticated Android mobile applications
• Experience building a scalable customer facing application used by millions of customers
• Provide on-call and in-person support for troubleshooting, isolation, maintenance, operations, patching, incident management, problem management, build and deployments for owned software and systems
• Hands on experience in developing mobile networking, REST web-services, understanding large and complex code bases that involves mobile, backend and external SDK integration
• Designing mobile application using VIPER, Factory, DAO, MVVM, MVC, Delegate, Builder, Adapter, Singleton and Facade design patterns and architecture
• Experience in API design, SDK architecture, and mobile software lifecycle development practices
• BS degree in Computer Science, Information Technology, or equivalent experience
• Communication
• Customer Service
• Analytics
• Technical Writing
• At least 18 years of age
• Legally authorized to work in the United States

Experience in API design, SDK architecture, and mobile software lifecycle development practices

• Competitive base salary and compensation package
• Annual stock grant
• Employee stock purchase plan
• 401(k)
• Access to free, year-round money coaches
• Medical, dental and vision insurance
• Flexible spending account
• Paid time off
• Up to 12 paid holidays
• 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
• Voluntary long-term care insurance
• Mobile service & home internet discounts
• Pet insurance
• Access to commuter and transit programs