Is it permissible to falsify a certificate to enter a job competition if the person is qualified for the job, and is his salary permissible if he succeeds?

What appears is that this action is not permissible, because he obtained the jobs through lying and deception, and that is forbidden and reprehensible. It opens doors to evil and ways of deception. It is incumbent upon those entrusted with hiring to seek out the competent and trustworthy.