[nonesuchluck]

Outside of Israel, there are enough people of non-Jewish faith to be able to arrange labor schedules around individual needs. I work in a diverse company with a number of co-workers who observe Sabbath, and it has never been any hardship to arrange on-call schedules so they will never be paged on their day of rest.

[compsciphd]

on the flips side, observant jews in tech companies sometimes struggle with this in Israel, as the on call people who take over for them will still be jews. Even if said jew doesn't mind not observing the sabbath, the observant jew doesn't want them to do it on their behalf (so to speak).