Sr. Software Engineer

This role is essential for designing, implementing, and deploying scalable software solutions that meet customer requirements and support high availability environments. The role is part of the Subscription Product Engineering team supporting T-Mobile’s subscription platforms and customer lifecycle applications.

The role involves collaborating with engineers and cross-functional partners to develop software components, backend services, APIs, and microservices that support subscription management, billing integrations, customer provisioning, and operational support across multiple lines of business. The role requires independent judgment to resolve technical issues and make recommendations for software design and implementation.

Success is measured by the ability to deliver effective software solutions that integrate with system protocols, support reliable customer transactions, and meet business and technical requirements. The work impacts organizational capabilities by enabling advanced software systems that improve operational efficiency, customer experience, and platform reliability. We are a team that encourages innovation and advocates an agile and open approach, truly working and playing in the Un-carrier way! Job Responsibilities

• Develop software solutions and conduct tests to drive engineering projects and ensure quality deliverables.
• Design, develop, test, and deploy scalable backend services, APIs, and microservices supporting subscription management and customer lifecycle workflows.
• Contribute to design innovations that improve systems, processes, or services using new frameworks and industry best practices.
• Collaborate with technical teams, product managers, architects, QA engineers, DevOps, and managed service partners to deliver reliable, secure, and scalable software solutions.
• Participate in system design discussions, code reviews, and technical planning activities to improve software quality, platform reliability, and scalability.
• Troubleshoot software issues, analyze root causes, and implement sustainable solutions to improve system performance and stability.
• Support technology strategy by evaluating and applying current technologies that align with business goals.
• Create clear documentation for software code, system designs, APIs, operational processes, and business requirements to support knowledge sharing.
• Mentor others through knowledge sharing, code review participation, and training sessions aligned to engineering best practices.
• Also responsible for other duties/projects as assigned by business management as needed.

• Bachelor’s Degree plus 5 years of related work experience OR Advanced degree with 3 years of related experience (Required)
• Acceptable areas of study include Computer Science, Software Engineering, Information Management or equivalent experience in field (Required)
• 4-7 years Technical engineering experience. (Required)

Knowledge, Skills and Abilities

• Communication (Required)
• Customer Service (Required)
• Analytics (Required)
• Technical Writing (Required)
• Analytical Thinking (Required)
• Collaboration (Required)
• Mentorship (Required)
• Programming Languages (Required)
• Software Design (Required)
• Software Development (Required)
• System Integration (Required)
• Experience designing, developing, testing, and supporting backend services, RESTful APIs, microservices, or enterprise applications.
• Experience troubleshooting software issues, analyzing root causes, and supporting improvements to system performance, reliability, or stability.
• Ability to collaborate with cross-functional engineering, product, architecture, QA, DevOps, and vendor teams.

Preferred Qualifications

• Experience developing applications in cloud or hybrid environments.
• Experience with Java, Spring Boot, or similar enterprise backend development frameworks.
• Knowledge of Docker, Kubernetes, or related containerization and orchestration technologies.
• Experience with CI/CD tools such as Jenkins, GitHub Actions, or similar DevOps toolchains.
• Familiarity with event-driven applications, caching, messaging, or database optimization.
• Experience with observability and monitoring tools such as Splunk, Dynatrace, Grafana, or Prometheus.

• Experience working in Agile or Scrum development environments.

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

$113,600 - $205,000Corporate Bonus Target: 15% life insurance, vision insurance, flexible benefit account, paid time off, paid holidays, tuition assistance, 401(k) United States, Kansas, Overland Park 6360 Sprint Parkway (Show on map) May 16, 2026

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

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, 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.