- create a MVP, that can be a monolith without any automation
- you need only developers to create the product
- you can worry about scaling, automation, devops, securty when you are THERE.
Has that change? Would you invest in the infrastructure at the initial phase now? Where is that point where it makes sense to worry about these things?
Basic DevOps isn't hard. If you don't know how to do it - go learn it - it totally worth it.
Oh, also, you don't need developerS. Having more than 1 (2 tops) devs working on a project incurs a huge management overhead. I don't know what is your project, but if you need more than one dev for MVP without pmf, then it's the shortest route to run out of money.