Engineer, Software - Java [T500-28755]

About T-Mobile:

T-Mobile US, Inc. (NASDAQ: TMUS), headquartered in Bellevue, Washington, is America’s supercharged Un-carrier, connecting millions through its strong nationwide network and flagship brands, T-Mobile and Metro by T-Mobile. Customers benefit from an unmatched combination of value, quality, and exceptional service experience.

TMUS Global Solutions:

TMUS Global Solutions is a world-class technology powerhouse accelerating the company’s global digital transformation. With a culture built on growth, inclusivity, and global collaboration, the teams here drive innovation at scale, powered by bold thinking.

Job Overview:

At T-Mobile, we don’t just build technology — we empower people. We believe in investing in YOU — your growth, your long-term impact. We’re unstoppable when driven individuals come together to solve bold challenges, inspire innovation, and create platforms that power the future.

As a Software Engineer, you’ll work alongside top-tier engineers and architects solving complex problems at scale in the financial systems space. This role is built for builders — curious minds who are excited to learn modern system design, write production-grade code, and grow rapidly into domain experts. You’ll gain exposure to enterprise-grade systems, data-driven development, and the delivery of AI-integrated platforms, while learning to ship at scale.

This is your opportunity to launch your professional career with real impact — with strong mentorship, cutting-edge practices, and an accelerated path toward becoming a platform expert.

Key Responsibilities:

• Contribute to full-stack development, building scalable microservices, APIs.
• Design, develop, test, and maintain high-quality software with a strong focus on automated testing and code quality.
• Independently build and test software for assigned features, including automation and integration efforts.
• Develop modern applications across financial, credit, collection and document platforms by using Java/Spring Boot APIs.
• Create and maintain automated test suites to validate application functionality, improve regression coverage, and support CI/CD
• Participate in code reviews and continuously improve development standards and test automation.
• Work with cross-functional teams to deliver well-architected, reliable software solutions.
• Interact with system engineers to understand and define system protocols, requirements, and data flows.
• Participate in sprint planning, backlog grooming, and team retrospectives with a focus on learning and execution.
• Demonstrate growing independence in delivering software features from design through deployment.
• Continuously learn and adopt new technologies, tools, and frameworks to keep up with industry trends. Perform independent study of technologies relevant to your domain and proactively apply learnings.
• Write clear technical documentation on feature design, implementation details, and system behavior
• Communicate technical issues and trade-offs effectively with engineers and stakeholders.

Qualifications:

• Bachelor’s degree in computer science, Software Engineering, or a related field.
• 5+ years of professional software development experience.
• Hands-on experience with developing test validation scripts for microservices to ensure platform service quality
• Experience with Java, Spring Boot, and SQL/NoSQL databases.
• Experience with API testing tools such as Postman, LoadRunner, REST Assured, or equivalent.
• Exposure to RESTful APIs, containerized environments, and version control (e.g., Git).
• Understanding of system operations, data flow, and service integration.
• Strong desire to grow technical depth and take ownership of work.