someone who administers a test to determine your qualifications
source: WordNet 3.0
an investigator who observes carefully
The examiner searched for clues.
source: WordNet 3.0
One who examines, tries, or inspects; one who interrogates; an officer or person charged with the duty of making an examination; as, an examiner of students for a degree; an examiner in chancery, in the patent office, etc.