Hi,
I can help you configure an AWS subdomain for Nodejs API to run along with 2 public HTML Domain websites and configure SSL cert. as your requirements.
I have more than 10+ years of experience and knowledge as a system administrator, setup and management of different Linux Web Hosting Servers, Cloud Servers, Server Monitoring, Server Security, Server Optimisation, Mailing Servers, Email Marketing, SSL, DNS, Apache, Nginx, etc with Cpanel, Plesk, Virtualmin or other panels.
Services such as cPanel/WHM, Plesk, Virtualmin LAMP Stack, Tomcat, Mysql/MariaDB, Zimbra, Postfix mail server, Mailenable, smarter mail, MSSQL, etc.
If you're interested in my proposal please don't hesitate to reach out so we can talk more about the project.
Thank You.