Job Summary: We are seeking a key QA Tester to ensure the quality of our systems at the backend, API, microservices, and mobile application levels, collaborating within agile teams. Key Highlights: 1. Key role in ensuring quality of complex systems 2. Design and execution of tests for backend, APIs, and microservices 3. Collaboration with agile teams and proposal of QA improvements We are looking for a **QA Tester** who goes beyond testing UI screens. This role is critical to ensuring the quality of our systems at the **backend, API, microservices, and mobile applications** levels. Your Responsibilities: * Design and execute test cases for backend, APIs, and microservices * Conduct tests: Functional (smoke, regression, integration) / Non-functional (performance, reliability, scalability) * Validate data integrity and consistency in databases * Test integrations between systems and services * Analyze logs and support early defect detection * Report and track bugs in web and mobile applications * Collaborate with agile teams (Scrum/Kanban) * Propose improvements to QA processes and practices Requirements: * Completed Bachelor’s degree or Engineering program * **4+** years of experience as a QA Tester in projects involving backend and microservices * Experience conducting API testing using tools such as Postman, Swagger / SoapUI * Database knowledge: SQL (MySQL, PostgreSQL), NoSQL (MongoDB) * Experience in Web and Mobile testing * Experience using Android Studio and Xcode (REQUIRED) * Familiarity with management and CI/CD tools (Jira, Git, Jenkins) * Experience designing: Test cases, Validation matrices, Quality documentation Benefits: * Net salary of 27,000 pesos * Statutory benefits * Digital platforms for training * Professional career development plan * Work location – Coyoacán Employment Type: Full-time Salary: $27,000.00 per month Application Question(s): * Do you have experience with Android Studio and Xcode? Work Location: On-site employment