seo and website marketing

I am looking for a reliable freelancer who can provide a one-time SEO and website marketing service. My primary goal is to increase website traffic, so my main focus is on keyword research and optimization. I need someone with experience in on-page optimization and link building who can help me get my website known. This project would involve creating a plan of action and the execution of the plan in order to make my website more visible and increase its ranking in search engine results. I'm looking for someone who can help me maximize the potential of my website, so that it reaches its maximum results and allows it to expand.