Middle QC Engineer

N-iX is looking for a Middle QC Engineer to join our client's team. Cleverbridge is a platform that provides global e-commerce and subscription billing solutions, helping companies build long-term customer relationships and grow revenue streams. With its flexible subscription platform, Cleverbridge integrates seamlessly with client systems, simplifies e-commerce business models, and delivers an optimized online customer experience. Requirements: 3+ years of overall QA experience 2+ years of experience with API testing A big plus: knowledge and/or experience with API automation testing in C# using any automation framework (NUnit, xUnit, Playwright, etc) Solid knowledge of different testing levels, techniques, and types Experience with QA tools and tracking systems such as Jira, Xray plugin (or similar), Postman, Swagger, etc. Experience with Git, understanding of basic Git workflows such as classic Git flow Understanding of Agile development (Scrum/Kanban), TDD/BDD, and CI/CD English: Upper-Intermediate or above Responsibilities: Perform functional and non-functional testing of the application Design, maintain, and execute test cases/checklists in Xray Actively collaborate with developers and business stakeholders to clarify requirements, especially in terms of testability, consistency, and completeness Provide impact analysis to measure and control test coverage across all applicable coverage dimensions Participate proactively in backlog refinement, sprint planning, team retrospectives, and other Scrum ceremonies Contribute to API coverage We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits *not applicable for freelancers