Your choice of tech is Excellent but I have recommendations for you, I am a Scalable Cloud Architect & official Google Cloud Partner and AWS Activate member
I have 10+ years experience AWS SAM, ECS/ECR, Opswork, RDS, Route53, Cloudfront, S3, Lambda, Dynamodb, Batch, SQS, SNS, ELB etc.,
Please message to discuss and get this done