SSL/TLS Installation on Amazon Lightsail

I need an SSL/TLS certificate installed on my Amazon Lightsail server, without the use of a load balancer and specifically on a subdomain of my choosing. I'm looking for someone who can do this quickly, as I need it done ASAP.

Ideal Skills and Experience:
- Amazon Lightsail
- SSL/TLS certificate installation
- Familiar with DNS and subdomain setup