I very positively favor engineers who took AWS certifications.

Even the most basic Solutions Associate means I can trust that you at least know what I mean when I say 'SQS', 'KMS' and 'ECS'.

I prefer every engineer at least have foundational knowledge of AWS. We use IaC to template out everything and put 'training wheels' on our infra, meaning engineers might not spend a ton of time in AWS, the real benefit is in communication. Especially since I want engineers to feel confident to use our IaC to build solutions that scale and discuss how it could better suit the engineering teams needs, rather than just having an 'OPs team' drive application decisions.