Quality Assurance Engineers (QA Engineers) are professionals responsible for ensuring that products, especially software, meet specific standards of quality before they are released to users. They design and execute tests to identify any defects or issues, ensuring that the final product functions correctly and meets user expectations. QA Engineers work closely with developers and project managers throughout the development process. They create testing plans, automate tests when possible, and document their findings to help improve the product. Their role is crucial in minimizing errors and enhancing user satisfaction by delivering reliable and efficient products.