A customs officer is a person who works to enforce laws and regulations at various ports of entry. These may be at airports, seaports, or land ports. Most of the work a customs officer does involves processing various paperwork for immigration documents. They are also heavily involved in the inspection of cargo or baggage for prohibited items, as well as collecting funds for taxable imported goods. Most of the general public will see customs officers when traveling between international destinations.

A customs officer is employed by a government, and is under the guidance of a subdivision within the government. In the United States, this is the U.S. Department of Homeland Security, Customs and Border Protection. Those who are employed as customs officers must be on the lookout not only for violations in immigration, but also contraband and tax issues. For example, those bringing merchandise into the United States from other countries may be subjected to tax on that merchandise, even if it is for personal use.

A customs officer is a position that requires the ability to deal with many different types of people. Those who are at airports and borders will have to deal with a variety of personalities, all the while maintaining a professional demeanor. After all, they will be the first representatives of the government that many visitors encounter. Those who are at seaports will deal with fewer people, but will have more extensive cargo issues to pay attention to. This could include detailed examinations of large containers.

While contraband can include products every knows are illegal, such as drugs and some weapons, there are other more routine things of concern as well. For example, those who are bringing fresh produce back on an airplane will find they are not able to pass customs with it. This is to ensure foreign disease and pests do not gain a foothold domestically. The customs officer will confiscate such contraband and dispose of it properly.

Becoming a customs officer is relatively straightforward, especially in the United States. Those who have customer service experience, pass a background check, and can also pass a physical can qualify. Also, those who are applying must be referred for selection to an officer before the person's 37th birthday. In the United States, anyone interested in a job as a customs officer must be a citizen as well.

Customs officer jobs are found wherever there are ports of entry. Therefore, those who are near international airports, borders, or seaports may find more opportunities. Those who live in other places would likely need to relocate in order to become an officer in this capacity. Salaries are dependent upon experience, and some will be started out at a higher pay grade than others, depending on qualifications.