We are searching for a polite and passionate barista to fill a position at our Avanti Boulder location. We are seeking part and full time hours. About us. Lost City is a cafe located inside of Avanti Food & Beverage, in the heart of Boulder. At Lost City we strive to produce top quality coffee, teas, pastries, ice cream, and more. Duties. As an employee here, you will greet customers, answer questions, take orders and accept payments, as well as ...