A teller supervisor is a professional who supervises and coordinates the activities of tellers in a financial institution, such as a bank. They are responsible for ensuring the tellers are providing excellent customer service, handling transactions accurately and efficiently, and complying with all bank regulations and policies. They also train and mentor new tellers, handle customer complaints, and monitor teller performance. A teller supervisor must have strong communication and leadership skills, as well as a thorough understanding of banking regulations and procedures. They also need to be able to work well under pressure and make quick decisions. They must also have a good understanding of the bank's products and services and be able to explain them to customers. To become a teller supervisor, one typically must have previous experience working as a teller, and some financial institutions may require a college degree. Many teller supervisors also have certifications or advanced degrees in banking, finance, or business.