An on-call rotation is a schedule that assigns engineers, in turn, to respond to production alerts and incidents outside or during normal hours. Someone is always available to restore service.
Incident response is the planned process an organisation follows to detect, contain, investigate and recover from a security incident. It ends with lessons that strengthen defences.
A site reliability engineer (SRE) applies software engineering to operations, keeping production systems available, fast and recoverable. Organisations hire SREs when outages, slow responses or on-call fatigue start hurting customers and teams.
Time zone overlap is the number of working hours that colleagues in different locations share each day, when live meetings and quick replies are practical. It shapes how distributed engineering teams plan collaboration, reviews and handoffs.
Mean time to recovery (MTTR) is the average time it takes to restore a service after a failure or incident begins. It shows how quickly a team detects, responds to and fixes problems.
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