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Principal Software Engineer, Front End - T-Mobile H&E

| Greater Denver Area

Job Description

T-Mobile Home and Entertainment is seeking an innovative and results-oriented Principal Software Engineer to work on our UI team creating and maintaining a device-centric user interface. You will work with a cross-functional team in an agile framework to develop industry-defining features for a growing customer base. This position is best suited for a strong technical contributor who is intimately familiar with the technologies, methodologies, and concepts the role leverages.

Functional Group



CO108-CO-Layer3 - HQ

Location Address

1660 Wynkoop







Travel Required?




  • Collaborate daily with product managers, scrum masters, and UX designers.
  • Write dynamic web applications using test-driven development techniques.
  • Design application solutions to complex problems.
  • Advise front-end engineers on UI implementation best practices.


The Ideal Candidate:

  • Is disciplined and regimented, with a zealous focus on consistency.
  • Has strong written and verbal communication skills.
  • Has a high attention to detail and the ability to manage multiple, competing priorities simultaneously.
  • Has experience working within agile methodologies.
  • Has technical expertise with:
    • Javascript
      • jQuery
      • AJAX
      • ExpressJS, Rectify, VueJS, and React
      • Mocha, Jasmine, Karma, and Selenium
      • WebPack and Babel
    • HTML / CSS
    • Git
    • Mongo
    • JSON

Minimum Qualifications


  • Graduate degree or higher in CS, Computer Engineering, Electrical Engineering, or equivalent experience.
  • 10+ years of experience building web-based user interfaces.

Company Profile

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.com

EOE Statement

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, 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 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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Technology we use

  • Engineering
    • C++Languages
    • GolangLanguages
    • JavaLanguages
    • JavascriptLanguages


1660 Wynkoop St., Denver, CO 80202

What are T-Mobile Home + Entertainment Perks + Benefits

Health Insurance & Wellness Benefits
Flexible Spending Account (FSA)
Disability Insurance
Dental Benefits
Vision Benefits
Health Insurance Benefits
Life Insurance
Pet Insurance
Wellness Programs
Retirement & Stock Options Benefits
401(K) Matching
Employee Stock Purchase Plan
Performance Bonus
Child Care & Parental Leave Benefits
Child Care Benefits
Generous Parental Leave
Family Medical Leave
Adoption Assistance
Vacation & Time Off Benefits
Generous PTO
Paid Volunteer Time
Paid Holidays
Paid Sick Days
Perks & Discounts
Casual Dress
Company Outings
Relocation Assistance
Professional Development Benefits
Job Training & Conferences
Tuition Reimbursement
Diversity Program