We’re looking for a QA Engineer to help ensure the quality and stability of our web and mobile products.Responsibilities Perform manual testing of web and mobile applications (React / React Native); Conduct functional, regression, smoke, and exploratory testing; Create and maintain test cases, checklists, and test documentation; Identify, describe, and track bugs using Jira (or similar tools); Collaborate with developers and product managers to clarify requirements and ensure consistent product quality; Validate releases and hotfixes. Requirements 2+ years of experience in manual QA; Understanding of core testing types, test design techniques, and QA processes; Experience testing web applications and basic experience with mobile apps; Ability to perform API testing (Postman, Swagger); Understanding of REST / GraphQL APIs and JSON structures; Knowledge of basic API attack vectors (auth issues, rate limits, input validation flaws, insecure data exposure, etc.); Ability to write clear bug reports and test cases; English — at least Intermediate. Nice to have Experience testing React Native applications; Familiarity with automation tools (Playwright, Cypress, Appium); Experience with proxy/debug tools (e.g., Charles, Fiddler); Understanding of mobile platform specifics (iOS/Android behaviors, permissions, deep links).