Not all jobs provide more than the basic certifications, some do. You can choose jobs that offer them or begin "collecting" them yourself. Some require no experience, other than an RN license, others require 2 years experience before getting certified. For ICU certifications a few great ones to start with (almost always provided by hospitals) BLS Basic arrhythmia EKG interpretation ACLS More advanced (Not always provided by hospital) NIHSS CMC CCRNC