Sr Developer, Software

As America’s Un-carrier, T-Mobile US, Inc. (NYSE: TMUS) is redefining the way consumers and businesses buy wireless services through leading product and service innovation. The company’s advanced nationwide 4G and 4G LTE network delivers outstanding wireless experiences for customers who are unwilling to compromise on quality and value. Based in Bellevue, Wash., T-Mobile US operates its flagship brands, T-Mobile and MetroPCS. It currently serves approximately 58 million wireless subscribers and provides products and services through 70,000 points of distribution.

Designs and develops internal and external business systems/applications, systems interfaces, databases, reporting, or business intelligence systems, as required to deliver new systems functionality supporting corporate business objectives. The Sr Developer leads moderately complex projects, often mentoring and providing guidance to team members at an Assoc Developer or Developer level, and will work under the guidance of a Principal Developer on complex projects.

Enterprise Core Competencies

Responsible for building effective working relationships, making sound decisions, successfully making changes, initiating action and achieving results.

Minimum Required

  • Minimum 7 Years Application Development Experience.
  • Minimum 7 years professional experience designing and developing applications on one RDBMS (Oracle or SQL 2000).


  • 8+ years of Java Web Development experience
  • Strong database experience (prefer Oracle)
  • Worked on UNIX/Linux platform
  • High availability and fault-tolerant application experience
  • Experience in Agile/DevOps development
  • Microservices development experience
  • Blueprinting of solutions on latest integration paradigms and API based interactions including Microservices in a heterogeneous technology and product landscape
  • System architecture and development involving J2EE, Spring, Spring Core, Spring Boot
  • Demonstrable experience in defining a RESTful service based architecture for new business capabilities or transformations around legacy implementation
  • Knowledge of PCF (Pivotal Cloud Foundry)
  • SOA vs API implementation differences; analyze for appropriate adoption within development team for appropriate implementation
  • Worked one or more of these technologies AWS, Angular, Apigee, Docker (container management), Jenkins, Rally
  • Minimum of seven years work experience as a developer is desirable, preferably in the wireless industry.
  • Has had development experience on at least 4 projects with total project team size greater than 3 team members and has acted as lead developer on at least one project impacting multiple business units and providing technical leadership for at least 3 developers.
  • Has experience mentoring other members of technical/development staff.
  • Has experience working with at least 3 business applications/systems and has also provided tier 4 production support.

Education/Vocational Training

  • B.S. Computer Science or Management Information Systems or equivalent experience.

Essential Functions

  • Translate business, and functional requirements into documented technical specifications.
  • Utilize development skills to build (code) and unit test new systems functionality per technical specifications, with deliverables to include code builds and documented unit test results.
  • Develop application support documentation as required by the application support teams for acceptance of systems changes into production.
  • Build and unit test production deployment packages and implementation plans for scheduled systems enhancements.
  • Facilitate/lead reviews (walkthroughs) of technical specifications and program code with other members of the technical team, communicating design, requirements, feature set, functionality and limitations of systems/applications to team and development lead.
  • Utilize departmental Systems Development Lifecycle Methodology as a guide for development activities.
  • Provide on call and after hours support as required for production releases and to respond and provide Tier 4 support on production outages.
  • Contribute to and work to meet project schedules by providing accurate estimates of effort required for development deliverables, by providing updates on project progress to development and project management, and by escalating issues that might affect project success to management.
  • Maintain technical skills and expertise through continuing education and training.
  • Collaborate/Partner with other teams including Enterprise Testing, Release Planning and Management, Business Systems Analysis, Project Management, and Application Support on successful delivery of systems enhancements.

We Take Equal Opportunity Seriously – By Choice

T-Mobile USA, Inc. is an Equal Opportunity Employer. All decisions concerning the employment relationship will be made without regard to age, race, color, religion, creed, sex, sexual orientation, gender identity or expression, national origin, marital 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 or harassment based upon any of these factors is wholly inconsistent with our Company values and will not be tolerated. Furthermore, such discrimination or harassment may violate federal, state, or local law.

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