\" \" Firefighters battle the Woodhouse fire, also being called the Calimesa fire, in San Timoteo Canyon on Oct. 6, 2005, near Calimesa, California. David McNew/Getty ImagesA huge threat to our national forests, wildfires cost U.S. federal agencies over a billion dollars per year [source: Job Monkey]. These seasonal jobs take you right into the belly of the beast — fighting fires as well as aiding in preventing them. Smokejumpers have one of the more dangerous firefighter jobs. They provide the initial response and jump from aircraft right into forest fires to fight them from within.