[bscanlan]

Segment's blog posts on cost optimisation have plenty of detail and tips on this topic:

https://segment.com/blog/the-million-dollar-eng-problem/ https://segment.com/blog/spotting-a-million-dollars-in-your-... https://segment.com/blog/the-10m-engineering-problem/

Similarly this Honeycomb writeup is also excellent: https://www.honeycomb.io/blog/treading-in-haunted-graveyards...

By the sounds of it, you need to take drastic action. It sounds like you will not be able to just optimise your AWS spend to get more runway, though you should definitely do some bill optimisation. You will need to optimise your product itself and maybe even getting rid of unprofitable customers.

If you are not sure exactly who or what is driving the AWS cost, take a look at Honeycomb to get the ability to dive deep into what is eating up resources.