Quality controller is a term used to describe a professional who ensures that the products or services meet certain standards of quality. Synonyms for this term include quality assurance inspector, quality analyst, quality manager, quality supervisor and quality assurance specialist. Each of these terms refers to a person who is responsible for controlling the quality of products or services that are produced by a company or organization. Their role is to ensure that the products or services meet the required level of quality and are fit for purpose. These professionals play an essential role in ensuring customer satisfaction, maintaining the reputation of the company and complying with legal and regulatory requirements.