A bank teller is a financial professional who works at a bank and is responsible for handling customer transactions. Their main duties include processing deposits, withdrawals, and transfers, as well as cashing checks and providing account information. Bank tellers also help customers with basic inquiries about their accounts and services offered by the bank. In addition to customer service, bank tellers must ensure the accuracy of transactions and maintain security protocols. They often use computers and other technology to manage accounts and track transactions. A strong attention to detail and good communication skills are essential for success in this role.