Your company "saves" over 100k/month paying WAY too much for EKS, which is extremely expensive.

If you're at any decent scale (looks like you are), then switch to GKE, or switch to on-prem and buy some hardware + a Kubernetes distro like Mirantis/Openshift/Tanzu.

Heck, go run k3s on Hetzner and you won't have that much more work, but save literally millions at the scale you're talking about.