They didn't discriminate against anyone in this regard. Mind you, they did give some mainlanders special consideration for civil service jobs. They were able to take the back door to get around testing requirements and get themselves hired. It is a fact that mainlanders benefited financially from their status as mainlanders.
但是國民黨來到台灣，在教育上還諸於民，從未對台籍人士歧視，在文官就業上，過去國民黨要特惠某些大陸籍人士，在特考、任用之外，又可有後門可走，經濟利益上優惠他們也是事實。