Senior Software Engineer, iOS

T-Mobile

Senior Software Engineer at T-Mobile, collaborating with teams to design, implement, and deploy innovative software. Leading projects, mentoring engineers, and enhancing technical solutions.

Posted 5/21/2026full-timeFrisco • Kansas, Texas, Washington • 🇺🇸 United StatesSenior💰 $113,600 - $205,000 per yearWebsite

Tech Stack

Tools & technologies

Swift

About the role

Key responsibilities & impact

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
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

Requirements

What you’ll need

Bachelor's Degree in Software Engineering, Computer Science or a related field or the foreign equivalent
5 years of progressively responsible postbaccalaureate relevant work experience
3-5 Years Experience Developing Mobile Applications using Swift
Analytical Thinking
Analytics
Collaboration
Communication
Customer Service
Mentorship
Programming Languages
Software Design
Software Development
System Integration
Technical Writing
At least 18 years of age
Legally authorized to work in the United States

Benefits

Comp & perks

Medical, dental and vision insurance
Flexible spending account
401(k)
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

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

software developmentmobile applicationsSwiftsystem integrationsoftware designtechnical writingdata flowautomationengineering projectstesting

Soft Skills

analytical thinkingcollaborationcommunicationcustomer servicementorshipindependent studysupervisioncontinuous learningdesign contributiondocumentation

Certifications

Bachelor's Degree in Software EngineeringBachelor's Degree in Computer Science