I am a fully qualified AWS Solution Architect. I will create you a mock up and implement a infrastructure I believe your business needs by balancing Cost, Performance and Robustness. I will also have a chat with you about a serverless solution will will reduce running costs by 50%-75%. Serverless is basically a way to run code with no servers to manage and it is fully scalable. After creating a mockup of your proposed system I will happily implement it if you would like to go ahead. I will first create the solution using my AWS account to showcase what I have done and give you the estimated running costs of the system. I will then show you how to setup an IAM User on your own AWS account which will have limited access to the services I need. If you don't have much knowledge using AWS an IAM account is basically a user within your account which you can give certain permissions. Once the user has been setup I will implement the infrastructure on your account and show you everything you need to know. I also offer monitoring / maintenance but this will be an additional monthly cost.