N-iX seeks a Lead QA Engineer to develop comprehensive test cases using BDD, collaborate with the Product Owner on acceptance criteria, and determine automation strategies for front-end and back-end systems. Responsibilities include manual and automated testing, performance and security testing, defect analysis, and reporting quality metrics. The role requires proficiency in BDD/TDD, various automation tools (Appium, Espresso, XCUITest), and experience testing mobile applications. The ideal candidate will have strong communication, analytical, and problem-solving skills and be comfortable working within a CI/CD pipeline.