@ Comparables- There are many different jobs within ICE since they are the law arm of the Department of Homeland Security. There are numerous investigative support positions that are needed to support the special agents in their works. There are also numerous intelligence positions that are people can be recruited for.
If you want to become a special agent, you will need to be recruited. You can call the field office nearest you and ask to be contacted to a recruiter, but your best bet is to enlist in the military or to attend college and seek a degree in an area vital to National Security. Foreign language specialists being heavily recruited along with information technology specialists and certain engineers. My sister is an Arabic language major, and she is being heavily recruited by all kinds of agencies and organizations. ICE is highly selective and competitive so good luck.