Sr Software Engineer, ioS
Bellevue
Thursday, 21 May 2026
The Sr Software Engineer works with a team of other software engineers, network and systems engineers to design, implement, and deploy software which meet customer's requirements, scales easily, removes the limitations of traditional networking solutions, and supports deployment in highly available environments. The Sr Software Engineer actively participates in architecture and design of various software components focused on creating applications that leverage technologies such as virtualization, micro services, SDN, NFV, and Big Data platforms and technologies. They work on technical assignments that are moderately difficult, requiring judgment in resolving issues or in making recommendations. They work on assignments requiring considerable judgment and initiative, understand implications of work and make recommendations for solutions. They normally receive little instruction on daily work, and only require general instructions on newly introduced assignments. Job Responsibilities:Technical Engineering Services. 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. Innovation. 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. Technical Leadership. 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. Technology Strategy. Contributes to new and existing technology options that support business goals. Understands current technology that supports business goals. 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. Technical Writing. 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. Education and Work Experience:Bachelor's Degree in Software Engineering, Computer Science or a related field or the foreign equivalent, and 5 years of progressively responsible postbaccalaureate relevant work experience. (Required)Master's/ Advanced Degree in Software Engineering, Computer Science or a related field or the foreign equivalent, and 3 years of relevant work experience. (Preferred)4-7 years - Technical engineering experience .-5 Years Experience Developing Mobile Applications using Swift. Knowledge, Skills and Abilities:Analytical Thinking (Required)Analytics (Required)Collaboration (Required)Communication (Required)Customer Service (Required)Mentorship (Required)Programming Languages (Required)Software Design (Required)Software Development (Required)System Integration (Required)Technical Writing (Required)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. Compensation Range:Bellevue, WA: $147,700 to $199,900 Frisco, TX: $131,300 to $177,700 Overland Park, KS: $123,800 to $167,400 Base Pay Range: $113,600 - $205,000 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, ID=REQ 356230¶dox=1