The deadline for applications is three weeks from now.
A major recruitment campaign is underway for new Prison Officers around the country.
Successful applicants will start off their first six weeks of training in Portlaoise before moving on to Dublin.
The Irish Prison Service wants to see more than 250 new recruits following the competition.
The deadline for applying is three weeks from now, on the 26th, at 3pm.
Chief Officer Two in the Portlaoise Training College, Clare Casey, says the role of a prison officer involves helping people to re-intergrate into society when they are released: