Security engineer but has weekend work

I have about 10 years as a network engineer and am working on a CISSP. I got an offer for a Security Engineer job for a large financial company and they mention that there is likely weekend work. I know this isn't really monitoring or responding to threats (which I'm most interested in) but it's setting up new packet brokers, honey pots, net flow etc. I am not completely sure the extent of weekends but it seems Friday nights OR …

brokers cissp cybersecurity engineer etc financial flow isn job large monitoring network network engineer offer packet security security engineer threats weekend work working