Build infrastructure for development code environment (AWS)

I am looking for a skilled developer to build the infrastructure for a mobile application development code environment on AWS. The ideal candidate should have experience with React, Flutter, and app mobile development.

Requirements:
- Build and set up the infrastructure for a mobile application development code environment on AWS
- Experience with React, Flutter, and app mobile development
- Ability to create a secure and scalable environment

Timeline:
The infrastructure needs to be set up on demand.

Please provide examples of previous projects and relevant experience in your proposal.