The role of a QA (Quality Assurance) job is to ensure that the software products meet the set quality standards before they are delivered. This includes creating and executing test plans, identifying and documenting defects, liaising with the development team to ensure issues are resolved, and confirming that fixes are effective. QA Engineers may also be involved in reviewing requirement documents, participating in Agile ceremonies, and working on process improvement initiatives. They play a crucial role in every stage of the Software Development Lifecycle (SDLC), ensuring that quality is built into the product at every step, from initial requirements to the final delivery.