Engineer, SDET - Agentic AI [T500-20455]

ANSR is hiring for one of its clients.

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 is a subsidiary of T-Mobile US, Inc. and operates as TMUS Global Solutions.

About the Role :

The Software Development Engineer in Test (SDET) plays a key role within the Technology for Business (TfB) team. This position involves partnering with development and technology leaders to translate requirements into automated testing frameworks, ensuring code quality across the delivery pipeline. The SDET is embedded in the full development lifecycle and leads the implementation of automation strategies, while supporting both functional and non-functional testing to maintain reliability and performance.

What You’ll Do :

Ensure requirements and user stories are testable; clarify ambiguities

Provide testing estimates and maintain test activities

Develop and maintain manual and automated test suites

Manage defects and coordinate with end-to-end testing teams

Use tools like SonarQube for code coverage analysis

Integrate automated tests into the Continuous Delivery pipeline

Design automation systems and tools for engineers

Contribute to unit, performance, scalability, and durability test case design

Provide and manage test data for all delivery phases

Stay up to date with testing best practices and tools

Coordinate with Dev and Ops to uphold testing standards

Participate in design and code reviews

What You’ll Bring :

2-4 years’ experience with at least 3 programming languages (e.g., C#, Java, JavaScript)

Strong analytical, problem-solving, and root-cause analysis skills

Understanding of Agile development lifecycle

Hands-on experience with tools like Selenium, TestNG, Appium, Sauce Labs, Rest Assured, Postman, Cucumber, Jasmine, Protractor

Familiarity with TDD, BDD, and various test strategies

Experience with CA Service Virtualization or similar tools

Proficiency in issue tracking and agile project management platforms

Experience in CI / CT / CD and DevOps environments

Development experience on Unix / Windows or mobile platforms (Android / iOS)

Bachelor’s Degree in a technical discipline (or equivalent experience)

Must Have Skills :

Testing AI / LLM-based systems

Multi-agent frameworks

Python / JavaScript

Test automation

Prompt and workflow validation

API / integration testing