For the purpose of administering Section 13300 of this code the director may appoint and prescribe the duties and fix the salaries of such number of skillful accountants or assistants as he deems necessary. Each such appointee is a civil executive officer.

Before entering upon the discharge of the duties of his office each such appointee shall execute to the state an official bond conditioned upon the faithful performance of his duties in such penal sum as the director prescribes, but not less than five thousand dollars ($5,000).