accountant

n. one who maintains financial records, one who does financial audits

Accountant, or Qualified Accountant, or Professional Accountant, is a certified accountancy and financial expert in the jurisdiction of many countries. Such as other legally-restricted professions including medical doctors and lawyers, different countries have their own training and examination systems to maintain the practice quality and restrict the number of qualified accountants in their jurisdictions.
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Noun
1. someone who maintains and audits business accounts
(synonym) comptroller, controller
(hypernym) businessperson, bourgeois
(hyponym) auditor
(derivation) account, calculate

n. (Finance) accountant, one who maintains financial records

(n.)
One who renders account; one accountable.
  

(n.)
One who is skilled in, keeps, or adjusts, accounts; an officer in a public office, who has charge of the accounts.
  

(n.)
A reckoner.
  

(a.)
Accountable.