Make sub.mydomain.com to mydomain.com

I am in need of a freelancer who can help me move my new website, currently hosted as a subdomain, to the main domain. This project involves updating internal links and SEO, and setting up 301 redirects. Ideal candidates should have experience with website migration, SEO optimization, and setting up redirects. The project must be completed in a timely manner and with minimal disruption to website traffic.