What kind of science do you teach/are you certified for and where are you looking? I know of a HS that is seeking a Biology as well as (I think) a Chemistry position.
As for Common Core, make sure you look at the standards. I know that Science is quite limited in what is available at this point, but think about how you would make sure the students achieved that standard's goal. Another think you want to think about, especially in middle schools, is what sources to use for reading within Science. Many middle schools require the teacher to teach a reading class or that they also incorporate reading within the classroom. This could involve picking a scientist and allowing the students to turn in a research project of some sort, or the class together reading the diary of a scientist to see how their thought process evolved.