A Supplier Quality Engineer (SQE) is a professional who is responsible for ensuring the quality of products and materials supplied by vendors to a company. They work closely with suppliers to ensure that products meet the company's quality standards and specifications. SQE's are responsible for performing supplier audits, evaluating supplier performance, and implementing corrective actions as needed. They also evaluate new suppliers and review supplier documentation, such as quality plans and control plans. SQE's have a strong background in quality assurance and engineering, and have a passion for ensuring that the products and materials used in a company meet the highest standards of quality.