Mission:
Establish several months in advance the routes that will be taken by the aircraft and table them at the regulatory agency of the country where he operates (Operations Officer).
Intervene a few hours before the departure of an airplane, and prepare the technical documentation that must be handed to the captain and also indicate the route to be followed, meteorological data and air traffic conditions (flight dispatcher).

Mission:
May have under his responsibility, a whole warehouse.

Mission: 
Parcel sorting, loading and offloading of cargo aircrafts, preparation of pallets and storage (storekeeper).

Mission: 
Stays in touch with companies that send in goods (import / export agent).
Responsible for all customs formalities with foreign countries (Customs declarant).