Senior QA Automation Engineer: Selenium, C#, API Testing

Creative Solutions Services, LLC; Arlington (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

NTT DATA is seeking a QA Automation Engineer in Arlington, TX to design and implement automated tests for web and API-based applications using Selenium WebDriver and C#. You will craft BDD-style scenarios with SpecFlow, improve the POM framework, and ensure end-to-end coverage by integrating API and UI tests.

You will collaborate with QA, business analysts, product owners, and developers, maintain test scripts, and contribute to CI/CD pipelines for automated execution and reporting.

Qualifications

• Minimum 5+ years of experience in Software Testing, QA Automation, or API Test Automation.
• Minimum 3+ years of hands-on API testing with Postman, SoapUI, Rest Assured, or Swagger/OpenAPI.
• Minimum 3+ years developing and maintaining automation frameworks with Selenium WebDriver and C#.
• Minimum 2+ years of experience with BDD frameworks such as SpecFlow or Cucumber.
• Strong understanding of REST and SOAP APIs, HTTP/HTTPS, JSON, and XML.
• Minimum 2+ years of experience with NUnit, JUnit, TestNG, or PyTest.
• Minimum 2+ years with Git and Azure DevOps.
• Minimum 2+ years exposure to cloud platforms (Azure, AWS, or GCP).
• Excellent analytical, troubleshooting, and communication skills.

Responsibilities

• Design and develop automated test scripts for web and API apps using Selenium WebDriver and C#.
• Create BDD test scenarios with SpecFlow and Gherkin syntax.
• Build and enhance Page Object Model automation frameworks.
• Develop data-driven test scenarios with dynamic data management.
• Perform API testing and integrate API validation with UI automation for end-to-end coverage.
• Support CI/CD pipeline integration for automated test execution and reporting.
• Collaborate with QA, BAs, Product Owners, and Dev teams to translate requirements into tests.
• Maintain and refactor automation frameworks and test scripts.
• Create and maintain test docs, automation reports, and defect logs.
• Investigate failures and perform root-cause analysis.

Skills

Selenium WebDriver

C#

API Testing

SpecFlow

BDD

REST APIs

SOAP services

Test Frameworks (NUnit/JUnit/TestNG)

Git/Azure DevOps

Cloud Platforms (Azure/AWS/GCP)

Automation QA

Education

Bachelor's degree in Computer Science / Information Technology / Engineering

Tools

Postman

SoapUI

Rest Assured

Swagger/OpenAPI

Job description

NTT DATA is seeking a QA Automation Engineer in Arlington, TX to design and implement automated tests for web and API-based applications using Selenium WebDriver and C#. You will craft BDD-style scenarios with SpecFlow, improve the POM framework, and ensure end-to-end coverage by integrating API and UI tests.

You will collaborate with QA, business analysts, product owners, and developers, maintain test scripts, and contribute to CI/CD pipelines for automated execution and reporting.