AWS Architect Needed for Infrastructure Sizing & Cost Validation

We are looking for an experienced AWS Cloud Architect / DevOps Engineer to review and validate the AWS infrastructure sizing and monthly operating costs for a production SaaS/AI platform.

In your bid, tell me the one question you would need answered before you would put your name to a monthly AWS figure for this platform.

The engagement will focus on:

AWS infrastructure sizing and right-sizing
EC2 and RDS/PostgreSQL recommendations
Storage, backup, logging and networking costs
Monthly AWS billing estimation
Cost optimization and identification of hidden AWS charges
Scaling recommendations as user volume increases
Review of Cloud and Hybrid deployment architecture
Optional HA architecture and cost impact
AWS billing monitoring and cost-control recommendations

This is primarily a review and validation engagement, not a full architecture redesign.

Required experience: Strong hands-on AWS architecture, RDS/PostgreSQL, production SaaS deployments, networking/security, and AWS cost optimization.

Deliverable: A concise sizing and costing recommendation with estimated monthly AWS costs and scaling guidance.