A teller is a bank employee who assists customers with various financial transactions. Their primary responsibilities include processing deposits, withdrawals, and transfers, as well as cashing checks. Tellers also provide information about account balances and bank services, ensuring a smooth experience for customers. In addition to handling cash, tellers must accurately record transactions and maintain security protocols to prevent fraud. They often use computers and other technology to manage accounts and assist customers efficiently. Tellers play a crucial role in the daily operations of a bank, contributing to customer satisfaction and trust in financial institutions like Bank of America or Wells Fargo.