At incident.io, the on-call system is designed to ensure continuous product reliability and improve both internal processes and the product itself, with all engineers participating in a rotation. The schedule begins on Friday evening and runs for a week, with the rationale that starting on the weekend reduces the week's looming pressure. Support systems are in place, allowing team members to request cover or escalate issues if necessary, and new engineers are eased into the rotation with mentorship. Compensation for on-call duties is included in overall pay, with additional hourly rates for time outside regular hours, and team members are encouraged to rest after challenging nights. The company fosters a supportive environment by emphasizing mutual coverage, trusting engineers to manage their readiness and responsibilities while maintaining a healthy work-life balance.