Interim executive

Also called: interim CEO, interim CTO, interim CFO, acting CEO, acting CTO, interim leader

A leader who fills a role full time for a limited period, for example after someone leaves and before a permanent hire. A fractional executive works part time for several companies; an interim executive works full time for one, for a while.

For example: After its CTO leaves, a company names an interim CTO for six months to keep the team shipping while it looks for a permanent hire.