We are looking for a skilled QA Engineer – Commerce Domain Services to join our team in a hybrid, long term contract role in either Addison, TX or Miramar, FL. This role involves testing backend services and APIs that power a large-scale eCommerce platform. The ideal candidate will have strong experience in backend testing, API automation, and system integration, with a solid foundation in eCommerce and its interaction with surrounding systems like notification services, cloud platforms, and third-party integrations. Responsibilities: • Perform functional manual testing for backend services across the commerce domain. • Conduct UI and API integration testing across microservices architecture. • Design and implement API automation tests using Selenium, Playwright, and Java-based frameworks. • Develop and execute test cases for service integrations, including notifications, badge files, AWS Lambda, and cloud-based services. • Utilize tools like Postman, Rest Assured, and Mockito for service testing and mocking. • Manage test cases and defects using JIRA or similar test management tools. • Ensure high reliability and accuracy of data served through centralized domain services. Collaborate with cross-functional teams to validate service functionality and performance across applications. Requirements: • 5+ years of experience in QA with a focus on backend/API and eCommerce platforms (B2B/B2C). • Proven expertise in API automation using Postman, Rest Assured, or equivalent tools. • Strong automation skills using Selenium, Playwright, or JavaScript-based tools. • Experience with mocking frameworks like Mockito or similar. • Strong understanding of how eCommerce systems integrate with other platforms and services. • Knowledge of cloud services and microservices-based architecture, including AWS and Lambda functions. • Familiarity with JIRA and other test management tools. • Solid understanding of RESTful APIs and service validation strategies.