Kristin Doneski joined Preble Street as teen services supervisor.
Doneski, of Portland, will work with homeless youths to help them develop life skills that promote long-term stability. She previously worked at Larkin Street Youth Services in San Francisco.
Charlotte DeTroy was promoted to supervisor of Preble Street Teen Services First Place Transitional Living Program.
DeTroy, of Falmouth, joined the nonprofit as a caseworker in 2008 and previously served as a team leader.
Daniella Cameron was promoted to manager of the Preble Street Anti-Trafficking Coalition.
Cameron, of South Portland, joined the nonprofit in 2009 and has served as a teen services supervisor.