Immigration officers are involved in ensuring the UK immigration laws are adhered to. They check the passports and visas of people entering the UK and establish whether the visitor meets the criteria for entry or should be refused.
Typical responsibilities of the job include:
observing passengers passing through passport control areas
examining passports
conducting interviews
taking fingerprints
carrying out surveillance
organising the removal of passengers who fail to qualify for entry
collecting statistics
writing reports
Since the job is linked to borders and ports, you may need to relocate in order to be able to reach your jurisdiction effectively. You may also be required to work nights and some weekends. Working hours are usually very flexible.