Sr Software Engineer

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!

We are seeking a highly skilled and experienced Senior Software Engineer to join our dynamic engineering team. The ideal candidate will lead the design, development, and deployment of scalable microservices, manage cloud infrastructure on AWS, and ensure robust API performance. This is a hands-on leadership role that requires strong technical savvy and the ability to collaborate with multi-functional teams across geographies.

Job Responsibilities

Develop software solutions and conduct tests to drive engineering projects and ensure quality deliverables

Collaborate with technical teams to deliver solutions and mentor others through knowledge sharing and training sessions

Support technology strategy by evaluating and applying current technologies that align with business goals

Create clear documentation for software code, system designs, and business requirements to support knowledge sharing

Also responsible for other duties/projects as assigned by business management as needed

Qualifications

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)

Required Knowledge Skills, and Abilities

4-7 years of progressive software engineering experience, including architectural leadership and complex system integration.

Software design and development - advanced expertise in Java and Spring Boot for secure, scalable microservices; strong API design (REST/GraphQL) and contract testing.

Deep knowledge of AWS, containers/Kubernetes, CI/CD, and DevOps/SRE principles.

Experience with event-driven architectures (e.g., Kafka), API orchestration, and distributed systems.

Proficiency with SQL/NoSQL, caching (Redis), and end-to-end observability (browser RUM, logs/metrics/traces with Splunk/Datadog).

Strong front-end engineering expertise with Angular and React: TypeScript, RxJS (Angular), React Hooks, and state management.

Performance optimization: code-splitting, lazy loading, hydration/SSR with Next.js or Angular Universal.

Accessibility (WCAG) and web security (CSP, OAuth/OIDC flows).

Proficient with AI coding assistants (GitHub Copilot, Claude, Cursor, or equivalent) to accelerate development velocity and reduce boilerplate

Experience integrating LLM APIs (OpenAI, Anthropic, or equivalent) into production services and applications.

Familiarity with prompt engineering patterns, retrieval-augmented generation (RAG), and agentic workflow design.

Exceptional collaboration and communication across cross-functional, globally distributed teams.

Also Required: Analytical Thinking, Technical Writing, Analytics, Mentorship, Customer Service

Preferred Knowledge, Skills, and Abilities

AWS Solution Architect and/or Kubernetes certification.

AI/ML certification or coursework (e.g., AWS ML Specialty, Google Professional ML Engineer, DeepLearning.AI).

Routing, forms, and enterprise-scale module federation/micro-frontends.

Experience in telecom or other highly regulated industries; Salesforce integration experience.

Experience leading design systems, micro-frontend platforms, and multi-repo/monorepo strategies at scale.

Contributions to open-source AI tooling or demonstrated AI project portfolio.

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: $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.

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!

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.