Mid June update: more positions posted, some in phenomenal labs, some with impending deadlines. Look in all colleges, not just in Biological Sciences.

Campuses in the University of California system use the title "Junior Specialist" to hire recent bachelor's graduates as researchers for a position of up to two years. Annually, these positions turn over as current junior specialists enter graduate or professional school programs. 

Spring is a prime time to search for such positions. At UC Davis, search at recruit.ucdavis.edu.