Software Engineer - iOS

T-Mobile USA, Inc

Bellevue, WA

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JOB DETAILS

JOB TYPE

Full-time, Employee

SKILLS

Android, Application Programming Interface (API), Architectural Services, Artificial Intelligence (AI), Business Support, Coaching, Code Reviews, Computer Engineering, Computer Science, Continuous Deployment/Delivery, Continuous Integration, Cryptography, Customer Support/Service, Develop and Maintain Customers, Documentation, Engineering, High Availability, Interaction Flow Diagram, Mobile Applications, Mobile Technology, Model View Controller, Model View ViewModel (MVVM), OAuth, Objective-C Programming Language, Operating Systems, Operational Improvement, Operational Strategy, Operational Support, Organizational Skills, Performance Tuning/Optimization, Process Improvement, Product Design, Production Systems, Quality Assurance, REST (Representational State Transfer), Requirements Management, Software Design, Software Development, Software Engineering, Source Code/Configuration Management (SCM), Stock Purchase Plans, Swift, System Operations, Technical Delivery, Technical Strategy, Technical Support, Technical Writing, Unit Test, Willing to Travel, iOS, iOS SDK (fka iPhone SDK)

LOCATION

Bellevue, WA

POSTED

30+ days ago

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees get the same big love we give our customers. All team members receive a competitive base salary and compensation package - this is Total Rewards. Employees enjoy multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and access to free, year-round money coaches. That's how we're UNSTOPPABLE for our employees!

Are you ready to join the Un-carrier movement?

We are seeking a highly skilled and motivated iOS Software Engineer to join the team powering the T-Life app-T-Mobile's flagship mobile experience. In this role, you will contribute to the design, development, and delivery of high-quality, performant, and AI-enabled Android features that reach millions of users.

The Software Engineer is essential for designing, implementing, and deploying scalable software solutions that meet customer requirements and support high availability environments. The role involves collaborating with engineering teams to develop software components using modern technologies and architectural patterns. This position requires independent development of full software stacks and understanding system protocols, data flows, and technology interactions. Success is measured by the ability to deliver technical solutions, produce clear documentation, and contribute to technology strategy and innovation. The work impacts the organization by enabling advanced software systems that improve operational efficiency and support business goals.

Job Responsibilities:

Develop software solutions that support engineering projects and meet customer requirements, including design and development of native iOS features using Swift, Objective-C, and the iOS SDK.

Collaborate with technical teams including product, design, backend, QA, and AI engineering teams to deliver effective technical solutions and continuously learn new technologies.

Create clear documentation for software code, system designs, and business requirements, including architectural decisions and API integrations.

Contribute to technology strategy by understanding current mobile technologies, iOS platform evolution, and supporting business goals through scalable and modular application design.

Present innovative ideas to improve systems, processes, or services based on industry research, including opportunities to enhance mobile experiences through AI-enabled capabilities such as personalization, recommendations, and conversational flows.

Integrate RESTful APIs and backend services, ensuring secure, performant, and reliable mobile experiences.

Contribute to quality practices including unit testing, code reviews, CI/CD participation, and performance optimization across devices and OS versions.

Education and Work Experience:

2-4+ years Technical engineering experience. (Required)

Experience developing iOS applications using Swift, Objective-C, SwiftUI, and the iOS SDK

Bachelor's Degree plus 3 years of related work experience

OR advanced degree with 1 year of related work experience

OR combination of education and experience deemed equivalent (Required)

Acceptable areas of study include Computer Science or Engineering (Required)

Knowledge, Skills and Abilities:

Communication (Required)

Customer Service (Required)

Analytics (Required)

Technical Writing (Required)

Preferred Qualifications:

Familiarity with architectural patterns such as MVC, MVVM, Coordinator, or VIPER.

Experience integrating RESTful APIs, Core Data, and third-party SDKs.

Understanding of CI/CD pipelines and version control systems such as GitLab.

Experience working with observability tools such as Firebase or similar monitoring platforms.

Exposure to AI-powered services, LLM-backed APIs, personalization engines, or intelligent mobile workflows.

Knowledge of secure communication practices including OAuth and encryption standards.

Experience building and maintaining consumer-facing mobile applications in production environments.

At least 18 years of age
Legally authorized to work in the United States

Travel:
Travel Required (Yes/No): Yes

DOT Regulated:
DOT Regulated Position (Yes/No): No
Safety Sensitive Position (Yes/No): No

Base Pay Range: $92,500 - $166,800

Corporate Bonus Target: 15%

The pay range above is the general base pay range for a successful candidate in the role. The successful candidate's actual pay will be based on various factors, such as work location, qualifications, and experience, so the actual starting pay will vary within this range.

At T-Mobile, employees in regular, non-temporary roles are eligible for an annual bonus or periodic sales incentive or bonus, based on their role. Most Corporate employees are eligible for a year-end bonus based on company and/or individual performance and which is set at a percentage of the employee's eligible earnings in the prior year. Certain positions in Customer Care are eligible for monthly bonuses based on individual and/or team performance. To find the pay range for this role based on hiring location, click here.

At T-Mobile, our benefits exemplify the spirit of One Team, Together! A big part of how we care for one another is working to ensure our benefits evolve to meet the needs of our team members. Full and part-time employees have access to the same benefits when eligible. We cover all of the bases, offering medical, dental and vision insurance, a flexible spending account, 401(k), employee stock grants, employee stock purchase plan, paid time off and up to 12 paid holidays - which total about 4 weeks for new full-time employees and about 2.5 weeks for new part-time employees annually - 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, and voluntary long-term care insurance. We don't stop there - eligible employees can also receive mobile service & home internet discounts, pet insurance, and access to commuter and transit programs! To learn about T-Mobile's amazing benefits, check out www.t-mobilebenefits.com.

Never stop growing!
As part of the T-Mobile team, you know the Un-carrier doesn't have a corporate ladder-it's more like a jungle gym of possibilities! We love helping our employees grow in their careers, because it's that shared drive to aim high that drives our business and our culture forward. By applying for this career opportunity, you're living our values while investing in your career growth-and we applaud it. You're unstoppable!

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.

Talent comes in all forms at the Un-carrier. If you are an individual with a disability and need reasonable accommodation at any point in the application or interview process, please let us know by emailing ApplicantAccommodation@t-mobile.com or calling 1-844-873-9500. Please note, this contact channel is not a means to apply for or inquire about a position and we are unable to respond to non-accommodation related requests.

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, 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.

About the Company

T-Mobile USA, Inc

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