The Enquirer understands that Greer and Shepherd parted company in the last few days.
Greer was a Shepherd veteran having occupied a string of senior positions since joining the company 35 years ago.
Greer’s LinkedIn profile states he was managing director of Shepherd Construction from May 2012 to September 2014.
He is currently listed as an “experienced construction professional”.
A spokesperson for Shepherd Construction said: “We do not comment on individual employees as a matter of policy.”