Arine is seeking a Senior Quality Assurance Engineer (Individual Contributor) who will operate as a key technical leader and authority in quality engineering execution. This role is critical for architecting, implementing, and championing the end-to-end quality strategy across our core application features, user interfaces, and backend services. You will be instrumental in building scalable, resilient testing frameworks, driving quality 'Shift-Left' into the development cycle, and providing critical technical direction that maximizes product reliability and engineering efficiency. You will collaborate directly with Engineering Architects, Product Managers, and the QA Manager to provide critical input to and execute our long-term quality vision.