**We are looking for a Quality Assurance professional** with proven experience in validating web and mobile applications, specialized in backend environments and microservices architectures. Expert in designing and executing functional and non-functional testing strategies. Has solid knowledge of databases (relational and non-relational), programming logic, and test matrix design focused on early defect detection. **Responsibilities** ● Design and execute test cases and validation matrices for backend, APIs, and microservices. ● Perform functional tests (smoke, regression, integration, sanity) and non-functional tests (performance, reliability, scalability). ● Validate data integrity and consistency in relational and non-relational databases. ● Analyze logs and perform debugging for early defect detection. ● Report, document, and track bugs and incidents in web and mobile applications. ● Collaborate with agile teams (Scrum/Kanban) in planning and delivering deliverables. ● Propose improvements in QA processes and tools, driving continuous quality. **Requirements** ● Experience as a QA Tester in projects involving backend and microservices. ● Knowledge of databases (SQL, MySQL, PostgreSQL, MongoDB). ● Experience in API testing (Postman, SoapUI, Swagger). ● Proficiency with management and CI/CD tools (Jira, Jenkins, Git). ● Knowledge of test case design, validation matrices, and quality documentation. ● Experience in Web and Mobile testing (functional and UI/UX). ● Desirable: knowledge of test automation (Selenium, Cypress, RestAssured). HOURS: Mon-Fri 9 AM-7 PM / SUR CDMX SALARY: $25k-$27k monthly net Job type: Full-time Salary: $25,000.00 - $27,000.00 per month Work location: On-site