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T-Mobile Sr. Engineer, Software - (Reston, VA - Multiple Openings) in Reston, Virginia



Sr. Engineer, Software - (Reston, VA - Multiple Openings)


VA121-VA-Reston Office Sprint

Job Description:

At the core of the Un-Carrier’s successful disruption of the wireless industry is a nationwide 5G network, award-winning customer service, and a multifaceted group of software developers. T-Mobile’s Product & Technology (P&T) organization is looking for experienced software engineers to join our development community. Be part of the Un-carrier Revolution and build the solutions helping to give T-Mobile customers the best customer experience in the industry while enjoying competitive salary and benefits!

Our development practices are founded on open teamwork and collaboration between customers and development teams, with an emphasis on community. Our newest software products are built using modern dev languages, runtimes, and frameworks such as Java, JavaScript/TypeScript, Golang, and Python (and the willingness and ability to learn the others given the opportunity). We're modernizing our architectures to replace Java monoliths with resilient microservices, sophisticated APIs, and beautiful front ends. Some opportunities include the newest technology crafting our world, including IoT, machine learning, and augmented reality. Most importantly, P&T empowers software teams with the tools, resources, and autonomy they need to deliver amazing experiences for our customers and other employees.

Req ID:


Positions Remaining:


Functional Group:

Enterprise Technology Solutions

Location Address:

12502 Sunrise Valley Dr

EOE Statement:

Equal Employment Opportunity

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, 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.

Travel Percentage:

Yes, 10% of the time




As a Senior Software Engineer in the P&T organization, you will:

  • Craft reliable and performant software products and features in a variety of popular software languages including JavaScript, GoLang, and Python

  • Grow your skills as a software engineer by collaborating with and mentoring other developers in an organization that defaults follows development principles.

  • Build data persistence solutions for software products, with the chance to work with and learn multiple data stores (including Postgres, Mongo, Redis, Cassandra) as well as event streaming platforms (including RabbitMQ, Kafka, SQS).

  • Own the end-to-end solution as a senior member of the team, including unit tests, CI/CD pipelines, deployments, monitoring, and security.

  • Help the team embrace modern practices such as test-driven development, pair programming, automation, async communication, as the industry evolves!

  • Implement design skills using common patterns for building reliable n-tier architectures.

  • Sharpen your skills by getting hands on with team at all levels of the stack -- and all parts of the process.

  • Go broad AND deep: work on front-ends and back-ends, automate tests and infrastructure, build CI/CD pipelines.

  • Not just write code, but with your team, have the opportunity to lead in the delivery of code into production.

Company Profile:

As America’s Un-carrier, T-Mobile USA, 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 USA. Inc. provides services through its subsidiaries and operates its flagship brands, T-Mobile and Metro by T-Mobile. For more information, please visit http://www.t-mobile.com

Applicant Privacy Policy

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  • 5+ years’ Application Development experience

  • Experience with one or more of the following: Java, JavaScript / TypeScript, Golang, and/or Python.

  • Ability to learn or existing familiarity with Git-based source code management systems (UI and/or CLI); Runtimes and UI frameworks including NodeJS, React, and/or Angular; Containerization (Docker); Microservices architecture, RESTFUL APIs, and GraphQL; Cloud providers (AWS, Azure, GCP) and PaaS (PCF - Cloud Foundry)

  • Ability to complete a pair programming session with a senior developer as a guide and mentor

Familiarity with:

  • Git-based source code management systems (UI and/or CLI)

  • Runtimes and UI frameworks including NodeJS, React, and/or Angular

  • Infrastructre as Code and Containerization (Docker)

  • Microservices architecture, RESTFUL APIs, and GraphQL

  • Cloud providers (AWS, Azure, GCP) and PaaS (PCF - Cloud Foundry)

  • Test Automation and Deployment Automation

  • Ability to complete a collaborative pair programming session in an interview setting with a senior T-Mobile developer.


  • Bachelor’s degree in Computer Science or a related field, or equivalent education and work experience required

Travel Requirements:

  • May require up to 20% of domestic overnight travel within the region, and occasional trips to the Bellevue Headquarters.





Full Time

Travel Required?:



Information Technology

Minimum Qualifications:

  • At least 18 years of age

  • Legally authorized to work in the United States

  • High School Diploma or GED

  • T-Mobile requires all employees in this position to be fully vaccinated for COVID-19 prior to starting work. The CDC defines "fully vaccinated" as two weeks after the second dose for Pfizer and Moderna, and two weeks after the single dose of Johnson & Johnson. T-Mobile will require proof of vaccination and consider requests for exemption from this requirement during the offer phase as a reasonable accommodation for medical reasons or sincerely held religious beliefs where the accommodation would not cause T-Mobile undue hardship or pose a direct threat to the health and safety of others.