number-cruncher

US /ˈnʌm.bɚˌkrʌn.tʃɚ/
UK /ˈnʌm.bɚˌkrʌn.tʃɚ/
1.

máy tính số

a person or computer that performs mathematical work involving large amounts of information or numbers:

:
He gained a reputation as a smart number-cruncher who could turn data into policy.