Sr Software Developer â Procure to Pay

As America's Un-carrier, T-Mobile US, Inc. (NASDAQ: 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, Washington, T-Mobile US provides services through its subsidiaries and operates its flagship brands, T-Mobile and MetroPCS. For more information, please visit http://www.t-mobile.comDesigns, develops, and supports Procure to Pay applications, tools and capabilities. The P2P solutions include SAP Ariba Buyer applications, SAP Fieldglass, and OpenText VIM. The Sr. Software Developer leads moderately complex projects, often mentoring and providing guidance to more junior team members.

This position will work very closely with Leadership, Architects, and DevOps team members to build out and execute a strategy advancing the P2P solutions, exposing capabilities to other enterprise systems via APIs and Micro services. The Sr Software Developer will contribute to the end-to-end ownership of all solutions from design through daily monitoring of applications and integrations performance.

This role requires competency in technology innovation, customer focus, strategic thinking, relationship building & influencing, results focus and inspirational leadership.


  • 7+ years application development experience with proven track record of success. Expertise with systems integration is desired.
  • 7+ years of experience designing, developing, and supporting back office applications.
  • 7+ years professional experience designing, developing, and supporting complex multi-tiered applications. Has had development experience on at least 4 projects with total project team size greater than 3 team members.
  • 3+ years of experience designing, developing, and supporting APIs and Micro services. Experience in designing XSD's and working with SOAP UI, as well as micro services and restful APIs.
  • Minimum 3 years experience with integrating Ariba solutions with SAP ECC.
  • Expert Knowledge of Microservices architecture style is required.
  • Comfort with frequent, incremental testing and automated testing deployment.
  • Familiarity with Artifactory, Bitbucket, Cloudbees/Jenkins, Docker, Methos Maven, Puppet, and Splunk.
  • Expert Knowledge of Cloud native application development required. Preferably with Pivotal Cloud Foundry with Java Spring Boot experience.
  • Ability to transform the systems to enable with CI/CD processes, test automation.
  • Good understanding on API design and REST standards.
  • Background on Middleware and SOA Technologies is preferred.
  • Expert Knowledge of API gateway products like Apigee is desired.
  • Knowledge of best practices and IT operations in an always-up, always-available service.
  • Strong grasp of automation tools and test data management skills. Experience with automation/configuration management.
  • Has experience mentoring other members of technical/development staff.
  • Experienced in Agile methodologies.


  • 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 with an eye towards automated regression and unit test scripts, 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.
  • Communicates design, requirements, functionality, and limitations of systems/applications.
  • Owns the technical vision and development of a sub domain or capability.
  • Implement, maintain, and improve Continuous Integration and Continuous Delivery processes, tools, and environments.
  • Implement appropriate operational monitors and instrumentation; proactively identify system issues and drive resolution.
  • Provide on-call and after hours support, as required for production releases and to respond and provide Tier 4 support on production outages.
  • May supervise contract resources.
  • 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 product enhancements and support.

Design XSD', Work with SOAP UI; Design, Develop and Implement Micro services and Restful APIs.Education

  • Bachelors in Computer Science or Management Information Systems or Equivalent work experience
  • Masters degree is a plus

    Open to candidates in Seattle, Dallas or Atlanta locations

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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