According to the spirit of the Labor Contract Law, employees are obliged to provide true personal information to the unit. Personal information must include work experience, graduation certificate and qualification certificate.
Therefore, providing false resumes and certificates, if it is a fraudulent labor contract (although not signed, but within 1 month), is invalid. His case is handled by reference, and his salary request based on personal information such as resume is invalid. Your company can pay him according to the actual situation, such as the local minimum wage, such as adjusting his salary according to his work results and so on. If losses are caused by his false information and he is required to pay compensation, it will be deducted from his salary first.