Software Engineer - iOS

T-Mobile • Bellevue, WA

9h

About The Position

Are you ready to join the Un-carrier movement? We are seeking a dedicated and motivated iOS Engineer to contribute to the continued evolution of the T-Life mobile application and T-Mobile's broader app ecosystem. In this role, you will design, implement, and maintain scalable, secure, and high-performing mobile features that support a large consumer-facing application used across the T-Mobile ecosystem. Working alongside expert mobile engineers and multi-functional partners, you will help deliver customer-focused solutions that integrate seamlessly with backend services and distributed systems. This role requires independent development of mobile components, application of modern iOS architecture patterns, and a strong understanding of system protocols and data flows. We are a team that encourages innovation and advocates an agile and open approach, truly working and playing in the Un-carrier way!

Requirements

• 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)
• 2-4 years Technical engineering experience. (Required)
• Communication (Required)
• Customer Service (Required)
• Analytics (Required)
• Technical Writing (Required)
• At least 18 years of age
• Legally authorized to work in the United States

Nice To Haves

• 3–5 years of experience developing mobile applications, including iOS applications using Swift and/or Objective-C (Preferred)
• Experience with UIKit and/or SwiftUI (Preferred)
• Familiarity with CI/CD tools and mobile release processes (Preferred)
• Understanding of mobile application lifecycle, testing frameworks (e.g., XCTest), and App Store deployment (Preferred)

Responsibilities

• Design, develop, and maintain iOS application features for the T-Life mobile app using Swift and/or Objective-C
• Build scalable and secure mobile components that integrate with RESTful APIs, third party SDKs and other backend services
• Apply established mobile architecture patterns (e.g., MVC, MVVM) and modern iOS concurrency practices
• Ensure application performance, responsiveness, memory efficiency, and production stability
• Participate in code reviews and contribute to unit testing and automated testing practices to maintain high-quality standards
• Collaborate with Product, Design, QA, Android, and backend engineering teams to deliver customer-focused mobile solutions
• Support CI/CD processes and App Store deployment activities for mobile releases
• Contribute to technical documentation and knowledge sharing within the team
• Also responsible for other duties/projects as assigned by business management as needed

Benefits

• 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.
• 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.
• 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.
• eligible employees can also receive mobile service & home internet discounts, pet insurance, and access to commuter and transit programs!

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level