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QA Engineer (.NET Framework / WPF) – India About Us Tech9 is shaking up a 20-year-old industry, and we're not slowing down. Recognized by Inc. 5000 as one of the nation’s fastest-growing companies, we are dedicated to building innovative, high-quality software solutions. Our team is passionate about delivering technology that makes an impact. We offer a 100% remote working environment with a collaborative and supportive culture, allowing you to focus on what you do best. Role Overview We are seeking a QA Engineer experienced in testing .NET Framework (4.5–4.8) applications, specifically WPF desktop applications built with XAML . In this role, you’ll be responsible for creating, executing, and maintaining both manual and automated tests to ensure a seamless and high-quality user experience. You’ll collaborate closely with developers, product managers, and designers to validate features, identify defects, and maintain product stability across a mature, large-scale Windows desktop application. This role is ideal for someone who thrives on understanding complex UI workflows and enjoys ensuring that every detail works flawlessly. Responsibilities Manual & Automated Testing : Design, execute, and maintain test cases for WPF desktop applications built on .NET Framework (4.5–4.8) . UI/UX Validation : Verify layouts, controls, and workflows implemented with XAML , ensuring visual and functional accuracy. Regression Testing : Develop and execute regression test plans to maintain stability during frequent releases. Functional Testing : Validate business logic, integrations, and end-to-end workflows across different application modules. Defect Tracking : Identify, document, and track defects through to resolution using bug tracking tools (e.g., JIRA, Azure DevOps). Test Documentation : Maintain detailed test documentation, including test cases, scenarios, and validation steps. Collaboration : Work closely with developers to understand system behavior, reproduce issues, and veri