Backlink building

I'm looking for an experienced freelancer to help me with backlink building. Specifically, I need guest posts as part of the backlink package. I have existing content I want to link out from, and I need more than 7 backlinks. I'm looking for someone who will prepare a successful backlinking strategy to boost traffic to my website and improve my search engine visibility. This freelancer should be experienced with content production, keyword research, and optimization. This is an ongoing project that I'm hoping will lead to long-term results.