consultant
noun [ C ]
uk/kənˈsʌltənt/ ussomeone who is paid to give expert advice or training on a particular subject:
a business/financial/IT, etc. consultant In her role as a business consultant she travels all over the country.
Now 58, he works as a consultant for a number of clients in the banking sector.
The company has hired a consultant to carry out the study.
See also
financial consultant
management consultant