Define, implement, and improve QA and testing strategy. Lead automation, integration, regression, and end-to-end testing. Plan and execute performance, load, and stress testing. Ensure quality across USSD applications, web portals, APIs, and transaction switch platforms. Lead, mentor, and manage QA teams. Integrate automated test suites with CI/CD pipelines using Azure DevOps. Drive release readiness activities. Collaborate closely with Product, Engineering, and DevOps teams. Ensure testing best practices, documentation, and compliance.