Holliston, MA Colantonio Inc. has hired assistant project manager Basliel Demessie and assistant superintendent Ryan Rogge.

Demessie’s four years of construction experience include work as a field engineer and assistant project engineer on large-scale residential and office building projects with former employers Mill Creek Residential Trust and John Moriarty & Associates.

Rogge joins the firm with five years of landscape construction experience, leading and managing landscape crews for large-scale residential and commercial properties. He also brings five years of account and production management experience. Ryan attended Patrick Henry College as a Public Policy major and is a graduate of the Leadership Institute Campaign Leadership School.

“Bas and Ryan fit right in with their strong work ethic and positive attitude,” said Colantonio president George Willwerth. “It’s great to have them on board.”