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! Responsibilities: Senior Engineer in this function builds, develops and leads self-service app Store platform team that provides a micro app framework and app store to enable developers to build data and analytics micro apps. Experience in Web/Mobile Application Development, UX Development and Data Analytics and ability to innovate on data visualizations and understanding of Advanced analytics and machine learning is critical to this role. What you will do: Lead the end-to-end solution as a senior member of the team, including unit tests, CI/CD pipelines, deployments, monitoring, and security. Git-based source code management systems (UI and/or CLI). Design and develop reusable stateless UI Components in React JS for self-service applications. Design and develop reliable, scalable, secure and performant applications and features using ReactJS, NodeJS, Typescript. Review and merge pull requests from peers and other team members, add comments, and make sure that code quality is maintained. Build data persistence solutions for software products, with the chance to work with and learn multiple data stores (including cosmos DB, SQL Server, Redis). Use Splunk for logging service level data. Qualifications: Technology and System Experience and Understanding of Modern Web App development using React Js, Angular, NodeJS, D3 frameworks, Data Analytics Collaborates with technical teams and utilizes system expertise to deliver technical solutions. Continuously learns and teaches others existing and new technologies. Experience in developing Mobile Apps for iOS and Android platforms. Experience in building APIs and App Stores. Experience and understanding of Data Analytics, Data visualization tools, Machine Learning Models etc. Experience in system design and designing data-intensive applications Experience and understanding of modern Infrastructure and Application development platforms [Ex: Public Cloud platforms, Kubernetes, Pivotal Cloud Foundry [PCF] etc.] Microservices architecture, RESTFUL APIs, and GraphQL Experience in automated testing of code, build CI/CD pipelines and delivery. Understands and has experience in Test-driven development (TDD). Strongly Preferred: Bachelor's degree in Computer Science or Engineering preferred 7+ years software development experience 3+ years of Node.js and JavaScript/TypeScript experience required 3+ years full stack web development experience required Washington Pay Range : $140,700.00 - $190,400.00 The 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. F