. The role is more specialized and informed than that of a wine waiter. Description The principal work of a sommelier is in the area of wine procurement, storage, wine cellar rotation, and to provide expert advice to customers.winepros.com.au. A sommelier may also be responsible for the development of wine lists, and for the delivery of wine service and training for the other restaurant staff. Working along with the culinary team, they pair and suggest wines that will best complement each parti… (More on Sommelier)