Quality assurance (QA)/quality control (QC) engineers are responsible for ensuring the quality of products and services produced by their company. They oversee the manufacturing of products and they are involved in every stage of making a product--from development and manufacturing to packaging.A QA/QC Engineer is responsible for analyzing and qualifying an organization’s product to make sure it meets quality and manufacturing standards. The engineer will typically work with other engineering teams to identify potential errors in the process or standard and design improvements that could create a more efficient and effective production line.