Engineer, SDET

tmobile; Overland Park (KS); On-site; USD 72,000 - 130,000; Full time

Job summary

T-Mobile is seeking a test automation engineer to translate business and functional requirements into automated test deliverables for voice/IVR applications across postpaid, prepaid, Assurance Wireless, Retail Store, and Metro by T-Mobile. The role focuses on implementing and sustaining automated test processes within the CI/CD lifecycle and leading automation strategy in a multi-application environment.

You will develop high-quality automated test code, maintain frameworks, and collaborate with

Qualifications

• Bachelor's Degree plus 2 years of related work experience OR combination of education and experience deemed equivalent (Required)
• 2-4 years professional experience using 3 or more development languages (e.g., C#, Java, JavaScript, etc.) (Preferred)
• 2-4 years professional experience using 3 or more automation tools (e.g., Selenium, TestNG, Appium, Sauce Labs, Rest Assured, Postman, Cucumber, Jasmine, Protractor, etc.) (Preferred)
• 2-4 years professional experience with various testing methodologies and strategies: Test Driven Development, Behavior Driven Development, etc. (Preferred)
• 2-4 years professional experience using CA Service Virtualization or equivalent. (Preferred)
• 2-4 years professional experience using issue-tracking software and agile project management systems. (Preferred)
• 2-4 years professional experience designing and developing applications on Unix or Windows environment, mobile platforms (Android or iOS) or designing complex multi-tiered applications. (Preferred)

Responsibilities

• Develop and maintain automated and manual tests - including test cases for voice/IVR applications - to measure product quality and support continuous delivery pipelines.
• Ensure requirements and user stories are testable and clarify ambiguities to support accurate test design and execution.
• Coordinate with development and operations teams across supported applications and business lines to uphold testing practices and meet quality thresholds.
• Design, develop, and maintain automation tools, systems, and test data to support development and testing activities, including validating application responses against expected test data and call flows.
• Also responsible for other duties/projects as assigned by business management as needed.

Skills

Automated Testing

DevOps

Java

Scripting

Software Testing

TDD

Test Planning

Education

Bachelor's Degree in Technical Discipline

Tools

Selenium

TestNG

Appium

Sauce Labs

Rest Assured

Postman

Cucumber

Jasmine

Protractor

Job description

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!

Job Overview

This role addresses technical challenges by translating business and functional requirements into test deliverables and systems, with a focus on the voice/IVR applications supporting our postpaid, prepaid, Assurance Wireless, Retail Store, and Metro by T-Mobile customer experiences. It primarily involves developing, implementing, and sustaining test automation processes throughout software development and sustainment lifecycles, including advancing test execution from manual processes toward automated tests integrated into the CI/CD pipeline. The role is distinguished by leading test automation strategy and creating maintainable, high-quality automated test code and frameworks across a complex, multi-application environment. Success is measured by the effectiveness of automated test execution, integration into delivery pipelines, and quality assurance outcomes. The work impacts organizational software quality and reliability, supporting development teams and enhancing customer satisfaction.

Job Responsibilities

• Develop and maintain automated and manual tests - including test cases for voice/IVR applications - to measure product quality and support continuous delivery pipelines.
• Ensure requirements and user stories are testable and clarify ambiguities to support accurate test design and execution.
• Coordinate with development and operations teams across supported applications and business lines to uphold testing practices and meet quality thresholds.
• Design, develop, and maintain automation tools, systems, and test data to support development and testing activities, including validating application responses against expected test data and call flows.
• Also responsible for other duties/projects as assigned by business management as needed.

Education and Work Experience

• Bachelor's Degree plus 2 years of related work experience OR combination of education and experience deemed equivalent (Required)
• Acceptable areas of study include Technical Discipline. Equivalent experience considered. (Preferred)
• 2-4 years Professional experience using 3 or more development languages (e.g., C#, Java, JavaScript, etc.). (Preferred)
• 2-4 years Professional experience using 3 or more automation tools (e.g., Selenium, TestNG, Appium, Sauce Labs, Rest Assured, Postman, Cucumber, Jasmine, Protractor, etc.). (Preferred)
• 2-4 years Professional experience with various testing methodologies and strategies: Test Driven Development, Behavior Driven Development, etc. (Preferred)
• 2-4 years Professional experience using CA Service Virtualization or equivalent. (Preferred)
• 2-4 years Professional experience using issue-tracking software and agile project management systems. (Preferred)
• 2-4 years Professional experience designing and developing applications on Unix or Windows environment, mobile platforms (Android or iOS) or designing complex multi-tiered applications. (Preferred)

Required Knowledge, Skills and Abilities

• Automated Testing
• Defects Management
• DevOps
• Java
• Requirements Analysis
• Scripting
• Software Testing
• Test Driven Development (TDD)
• Test Planning

Preferred Knowledge, Skills and Abilities

• Voice/IVR or speech-application testing experience
• GitLab and CI/CD pipeline experience
• Behavior-driven test scripting (e.g., Cucumber)
• Test data management and validation
• Critical thinking and ability to quickly ramp up on complex, multi-application systems
• Experience supporting multiple customer-facing business lines (e.g., postpaid, prepaid, Retail Store)

Travel

Travel Required (Yes/No): Yes

DOT Regulated

DOT Regulated Position (Yes/No): No

Safety Sensitive Position

Safety Sensitive Position (Yes/No): No

Total Target Cash Earnings Opportunity

$82,800 - $149,385

National Base Pay Range

$72,000 - $129,900

The Total Target Cash Earnings Opportunity represents the expected total cash compensation for this role at target performance, combining base salary and annual incentive opportunity. Actual earnings may be higher or lower depending on individual performance and overall company results.

The base pay range reflects the compensation component of this opportunity. The 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. To find the pay range for this role based on hiring location, https://paylookup.t-mobile.com/paylookup?reqID=REQ371763¶dox=1

At T-Mobile, employees in regular, non-temporary roles are eligible for an