Intermediate
Pay only for office hours
An HR platform is busy from 9:00 to 18:00 and almost idle at night, yet runs ten servers around the clock. Cut the bill without hurting the morning rush.
Traffic climbs from 15 % to 100 % between 7:00 and 9:00. New instances need five minutes to warm up.
What your design must achieve
- Availability ≥ 99.9 %
- Latency p99 < 200 ms
- Infrastructure cost per month < 3,600 $