Answer:
The answer to this question is given below in the explanation section.
Explanation:
The correct answer in this question (fill in the blank) is technologist.
Chief technology officers, with their experience, have the oppertunity to be a _technologist______ speaker at events and forums.
Chief technology officer is an expert person in the relevant technology. For example, cloud computing technology, biotechnology, etc. So such type of person knows as a technologist in their respective field/domain.