David W. Boyden has been hired as facilities manager at Marlborough-based St. Mary’s Credit Union. 

In this position, Boyden will be responsible for overseeing the facility maintenance and proper mechanical operation of the credit union’s retail branch network, administrative facilities and credit union-owned real estate.

Prior to joining St. Mary’s, Boyden was responsible for the daily operation and maintenance for 15 buildings overseen by Building Technology Engineers.