So just page that person directly (the dev, for the purposes of this argument).
(And because I feel like this is bound to draw a strawman, steelman this: while there are definitely pages that might not get routed to BE eng in particular, assume we're routing pages to the person responsible for that system. I.e., in the face of infrastructural problems, those pages get routed to something like "infra eng", although IME there's very little that can be done with those in the middle of the night…)
(And because I feel like this is bound to draw a strawman, steelman this: while there are definitely pages that might not get routed to BE eng in particular, assume we're routing pages to the person responsible for that system. I.e., in the face of infrastructural problems, those pages get routed to something like "infra eng", although IME there's very little that can be done with those in the middle of the night…)