Reducing cloud costs, especially if the dev team does not have anyone experienced enough to focus on this, is often possible on massive scales. More so if you h

Reducing cloud costs, especially if the dev team does not have anyone experienced enough to focus on this, is often possible on massive scales. More so if you have free reign to optimize/rewrite stuff as you see fit. While not 90%, I've reduced cost by 83% in one case while increasing the ability to serve during peak times also.