Armed security jobs involve working to guard a person or property while carrying a firearm. Your duties as an armed security officer vary. You may patrol an area to ensure that there are no security breaches. You may also ensure the safety of people who need security services. In some cases, armed security officers work in conjunction with police or other law enforcement agency, or but you may also work as a contractor for government agencies. Your responsibilities as an armed guard revolve around providing security services at stadiums, airports, banks, or other public venues.