Notwithstanding the provisions of subsection (a) of this section, any individual who is eligible to be selected for a position under the provisions of subsection (a) of this section and is a preference eligible as defined in section
2108
(3) of title
5 shall be given an employment preference, consistent with the preference in the competitive service as defined in section 2102 of such title for which such person is eligible under subchapter I of chapter 33 of such title, in selection to such position.