Add some pages and functions to my word press site

i have an existing site I would like to add some pages and a menu or two to my site. Adding a page is simple but I'd like to learn how to get all the SEO options correct when doin so. we'd also go over the seo. I'm an engineer and have built several sites before. I like to pay per hour (we can start with a retainer) an expert to get me up to speed on the latest thing that are needed to optimize my site and any ideas to convert visitors are welcome.