Develop and maintain cross-platform applications using Flutter. Collaborate with team members to design, implement, and test responsive mobile applications. Lead quality assurance efforts, including test planning, creating test cases, and automating tests. Write and maintain automated test suites for Flutter applications. Debug, analyze, and resolve issues to ensure a seamless user experience. Collaborate with stakeholders to define and implement quality metrics. Provide feedback for improving development workflows and QA processes. Ensure compliance with security and scalability best practices.