I'm interested in setting up a professional WordPress site but I'd like to explore the pssibilities to leave the management of the webserver and even WordPress' management to a company that guarantees great availability, performance of the site (load times, security) and even SEO.
My site is currently running on other platform but I plan on a migration on the next 4 weeks.
I've done this usually, but I'd like to focus on the content, so I don't have to mess with webserver/mysql/php configs in order to get nice performance.
Is there some (maybe hosting) company that is dedicated to this? Would it be better to hire a sysadmin with experience in those matters?