Software Engineer, iOS Job at T-Mobile (Bellevue)

Software Engineer, iOS

T-Mobile

Location:
United States , Bellevue

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

92500.00 - 166800.00 USD / Year

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Job Description:

We are seeking a highly skilled and motivated Software Engineer, iOS to design, develop, and maintain high-quality iOS applications. In this role, you will collaborate with cross-functional teams, including designers, product managers, and other developers, to deliver seamless and engaging mobile experiences. If you are passionate about building cutting-edge apps and thrive in a fast-paced environment, we want to hear from you!

Job Responsibility:

Drives engineering projects by developing software solutions
conducting tests and inspections
preparing reports and calculations
Expected to supervise base and associate level engineers as needed
Understands system protocols, how systems operate and data flows
Aware of current technology benefits
Expected to independently develop a full software stack
Understands the building blocks, interactions, dependencies, and tools required to complete software and automation work
Independent study of current technology is expected
Interact with system engineers to define system requirement and/or necessary requirements for automation
Contributes to designs to implement new ideas which utilize new frameworks to improve an existing or new system/process/service
Review existing designs and processes to highlight more efficient ways to complete existing workload more effectively through industry perspectives
Understands the creation of company IPR
Collaborates with technical teams and utilizes system expertise to deliver technical solutions
Continuously learns and teaches others existing and new technologies
Contributes to the development of others through mentoring or in house workshops and learning sessions
Contributes to new and existing technology options that support business goals
Writes basic documentation on how technology works
Creates clear documentation for new code and systems used
Documenting systems designs, presentations, and business requirements for consumption and consideration at the manager level

Requirements:

Bachelor's Degree Computer Science or Engineering
2-4 years - Technical engineering experience
2+ years’ experience building complex applications for the iPhone or iPad using Swift /Objective-C/C++ with the iOS SDK and other frameworks
Mastery of Xcode
Knowledge of SwiftUI
Knowledge of Core Data
Experience with networking frameworks to handle HTTP requests, REST APIs, and data parsing (JSON, XML)
Knowledge of MVC (Model-View-Controller)
Knowledge of MVVM (Model-View-ViewModel)
Knowledge of Coordinator Pattern
Knowledge of Singleton, Delegate, and Observer patterns
Proficiency in using Gitlab for version control
Problem-Solving
Effective communication skills
Continuous Learning
Experience building maintainable and testable code bases, including API design and unit testing techniques
Experience with multithreading programming and mobile memory management
Familiarity with Apple's design principles and guidelines
Knowledge of security best practices, including data encryption, secure communication, and OAuth
At least 18 years of age
Legally authorized to work in the United States

What we offer:

Competitive base salary and compensation package
Annual stock grant
Employee stock purchase plan
401(k)
Access to free, year-round money coaches
Annual bonus or periodic sales incentive or bonus
Medical, dental and vision insurance
Flexible spending account
Employee stock grants
Employee stock purchase plan
Paid time off
Up to 12 paid holidays
Paid parental and family leave
Family building benefits
Back-up care
Enhanced family support
Childcare subsidy
Tuition assistance
College coaching
Short- and long-term disability
Voluntary AD&D coverage
Voluntary accident coverage
Voluntary life insurance
Voluntary disability insurance
Voluntary long-term care insurance
Mobile service & home internet discounts
Pet insurance
Access to commuter and transit programs

Additional Information:

Job Posted:
January 07, 2026

Employment Type:

Fulltime

Work Type:

On-site work

T-Mobile - All Job Offers

Job Link Share:

Software Engineer, iOS

T-Mobile

Location:
United States , Bellevue

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 07, 2026

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