Be unstoppable with us!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!Job OverviewAre you ready to join the Un-carrier movement?We are looking for a Developer to help T-Mobile build foundational components for T-Mobile mobile applications. We want you to work with business stake holders and deliver awesome mobile experiences to our customers. We value skills delivering and working with Open-Source tools and infrastructure. You are self-driven, work well in a team, have great communication skills, and bring leading edge skills on mobile technology to T-Mobile. In T-Mobile's App team, we work cross-functionally to understand the linkage between T-Mobile’s business goals, business architectures, and technology architectures – and strive to further T-Mobile’s business goals via organic or inorganic evolution of T-Mobile’s architectures.The Developer is responsible for designing/coding creative and scalable systems and software solutions that address business/technical needs in an ever-changing competitive market. We are a team that encourages innovation and advocate an agile and open approach, truly working and playing in the Un-carrier way!Job Responsibilities:Primary Duties and Responsibilities:Develop and maintain high-quality, user-friendly iOS applications for millions of customers.Hands on develop, working with teams on edge solutions to problems that come about when developing at scale.Perform detailed technical design and implementation of sophisticated iOS applications.Translate business requirements into technical requirements for large customer facing products (millions of users), starting from design through implementation.Work closely with the Product, UX/UI and Backend teams to design, build and extend consumer facing new products, platforms, and features.Write clean, maintainable code and improve product quality through code reviews, writing effective unit tests.Experience/Technical Skills:5 years of experience developing iOS applications at scale with high volume of users with an eye for visual details.Expertise in Swift and Objective-C, UIKit and SwiftUI, as well as knowledge of UI architecture and UI performance.Solid understanding of object-oriented programming, basic data structures and asynchronous programming. Experience with iOS app performance and metrics.Detailed conceptual and hands-on knowledge of architectural patterns preferably VIPER and best practices relating to complex mobile and progressive web apps. Proven grasp of mobile networking and REST Web Services.Experience and understanding of large and complex code bases and architectures. Experience in API design, SDK architecture, and mobile software lifecycle development practices.Excellent verbal and written communication skillsEducation:BS degree in Computer Science, Information Technology, or equivalent experience • At least 18 years of age• Legally authorized to work in the United StatesTravel:Travel Required (Yes/No):YesDOT Regulated:DOT Regulated Position (Yes/No):NoSafety Sensitive Position (Yes/No):NoWashington Pay Range : $140,700.00 - $190,400.00The pay range above is the general base pay range for a successful candidate in the state listed. The successful candidate’s actual pay will be based on various factors, such as work location, qualifications, and experience, so the actual starting pay may be above or below 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, while Retail and Business Sales roles are eligible for monthly or quarterly sales incentives. And since we are ALL owners, EVERY employee at T-Mobile is eligible for an Annual Stock Grant.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 paid 12 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 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 . Never stop growing!T-Mobile 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.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.SummaryLocation: Bellevue, WashingtonType: Full time