If you join our Group Billing we can provide you access to CloudCheckr a Cloud cost optimization tool. We can then do billing optimizations on your behalf including purchasing Reserved Instances for EC2, RDS, and Redshift.
Storage and Bandwidth are likely the single largest cost centers on the Cloud. We optimize this by finding ways to cache the results or use Cloudflare to provide the frontend to reduce your costs.
If you have significant costs using Github Actions it may make sense to migrate to Self-Hosted Github Actions Runners. This allows you to have your CI/CD within your own AWS account and take advantage of Cloud Native architecture to reduce the costs of your builds.
Fine tuning limits and requests to pack more processes into your Kubernetes cluster allowing you to do more with less resources.
We setup scheduling to turn on and off instances if anything is running that doesn't need to be run all the time. Further, we setup lifecycles to autodelete old container images, and instance restarts and upgrades.
We provide Continuous compliance audits using CloudCheckr if you join our Group Billing.