Viento has appointed Doug Grewar as its new CEO.
Grewar previously held senior roles in Downer EDI, Abigroup Mining Serives, and was the CEO of MACA.
He resigned from MACA in May last year.
Viento chairman Ray Munro welcomed Grewar to the company, adding that his appointment is part of a wider restructuring of the business.
He steps into the role officially today.