Engineer, SDET [T500-20458]

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.

About 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.

TMUS India Private Limited operates as TMUS Global Solutions.

About the Role :

As an SDET (Software Development Engineer in Test), you will play a critical role in the software development lifecycle by designing and building robust automated test systems, frameworks, and tools. You’ll work side-by-side with developers to ensure product quality through automation, continuous integration, and quality gates — helping the team deliver reliable, scalable, and performant software at speed.

You will contribute to the automation strategy, drive test coverage, and ensure CI / CD integration across fast-moving DevOps environments.

What You’ll Do :

• Design, develop, and maintain automated test frameworks, scripts, and data generation tools
• Implement automation across unit, functional, integration, performance, and regression testing
• Integrate automated tests into CI / CD pipelines using tools like GitLab, Jenkins, or similar
• Participate in code reviews, design reviews, and quality assurance planning
• Analyze test results, report defects, and work with developers to drive root cause resolution
• Drive the adoption of test automation best practices, tools, and standards
• Contribute to grooming and maintaining a reliable, efficient, and scalable test suite
• Collaborate with development, QA, and operations teams to ensure high product quality
• Use tools like SonarQube for code coverage analysis and test quality metrics
• Ensure all tests and test data are maintained in a repeatable and automated process
• Work on virtualized test environments and integrate service virtualization as needed

What You’ll Bring :

Bachelor’s degree in a technical discipline or equivalent hands-on experience

2–4 years of experience in test automation and software engineering

Proficiency in 3+ programming languages (e.g., Java, C#, JavaScript)

Hands-on experience with automation tools such as Selenium, TestNG, Appium, Rest Assured, Postman, or similar

Familiarity with TDD, BDD, and CI / CD pipelines

Experience working in Unix, Windows, or mobile platforms (Android / iOS)

Hands-on with issue-tracking and agile project management tools (e.g., Jira, Rally)

Experience with service virtualization tools (e.g., CA Service Virtualization)

Strong analytical, debugging, and problem-solving skills

Effective communication and collaboration in cross-functional agile teams

Solid understanding of end-to-end testing strategies, environments, and data management

Must Have Skills :

Java

Spring boot

Cucumber (BDD),

Any MQ or RabbitMQ exp.

API testing (Postman / Rest Assured or any other testing framework)

extensive testing experience- T1 critical type systems (Middleware applications)