If I was an employer considering to hire an ex-convict who was jailed for fraud, my main worry would be that they would pull some stupid shit again. Especially with code there seem to be many opportunities (adding backdoors, access to sensitive databases...).

Lying in the application process would do little to alleviate that worry. Sure the, employer would have to find out first. But is it really the first thing an ex-convict looking for a job should do?