SEO for website

As a business owner, I understand the importance of having an SEO-optimized website. The success of my online presence rests in its ability to be found and ranking highly on search engines. Unfortunately, at present my website is currently not ranked at all. I am looking to rectify this and require full optimization to do so. Therefore, I am in need of a professional freelancer to provide complete SEO audit, on-page optimization, and link building services. I want to target two or three keywords or phrases with this project. I need the best optimization possible to move up the ranks and ensure greater visibility.