Bernie undertakes all aspects of the synagogue's maintenance and caretaking. This includes ordering supplies, setting up the shul and other rooms for services, doing security and meeting suppliers. Additionally, he sets up Gilah Nursery every morning.
He's a bit of an expert on Shabbat and the Jewish festivals and is always extremely accommodating to the community's needs (including setting up a Limmud minyan in the early hours after a communal Shabbat dinner). Without Bernie, the synagogue wouldn't function!