T-Mobile

Sr Software Engineer

T-Mobile$113K — $205K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Science, Software Engineering, Information Management, or equivalent experience; or Advanced degree with relevant experience.
  • 5+ years of software engineering experience, including complex system integration and architectural leadership.
  • Advanced expertise in Java and Spring Boot required, with a strong focus on microservices design.
  • Deep understanding of AWS, containers/Kubernetes, and CI/CD/DevOps principles needed.
  • Experience with SQL/NoSQL databases and performance optimization techniques.

Responsibilities

  • Develop and test software solutions to ensure high-quality engineering outcomes.
  • Innovate designs that enhance systems and processes using contemporary frameworks.
  • Collaborate with technical teams and mentor peers through knowledge sharing.
  • Evaluate and apply technologies that align with the technology strategy.
  • Create documentation for software code, system designs, and business requirements.

Benefits

  • Comprehensive medical, dental, and vision insurance.
  • 401(k) plan with company match and employee stock purchase options.
  • Paid time off, including up to 12 holidays and parental leave.
  • Tuition assistance and college coaching available.
  • Discounts on mobile services and home internet.
Full Job Description
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

  • Contribute to design innovations that improve systems, processes, or services using new frameworks and industry standards

  • 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, https://paylookup.t-mobile.com/paylookup?reqID=REQ341243¶dox=1

    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 .


    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!

    About T-Mobile

    T-Mobile US, Inc. is a wireless company. As of December 31, 2016, the Company provided wireless communications services, including voice, messaging and data, to over 71 million customers in the postpaid, prepaid and wholesale markets. It provides services, devices and accessories across its brands, T-Mobile and MetroPCS. It provides wireless communication services through a range of service plan options. The Company offers a device trade-in program, Just Upgrade My Phone (JUMP!), which provides customers a specified-price trade-in credit and upgrade eligibility after approximately six months of service; Equipment Installment Plan (EIP), which is designed to provide financing to customers for the purchase of devices, and installment agreements for accessories; T-Mobile Tuesdays, which offers customers free stuff and access to various offers from brands; and T-Mobile ONE and Simple Choice plans.
    Learn more about T-Mobile
    Size
    75,000 employees
    Market Cap
    $174.7 billion
    Industry
    Net Income
    $3 billion
    Founded
    2002
    5 Year Trend
    +16.4%
    Revenue
    $68.3 billion
    NASDAQ

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