SEO Expert needed who can build good quality backlinks

I am looking for an SEO expert who can help me build quality backlinks to improve organic traffic and visibility in search engines. The main purpose of the SEO is to increase organic traffic and I would like the expert to use primarily guest blogging methods in order to build backlinks. More than 50 links will be needed. As such, I am seeking an individual or team who possesses extensive knowledge and experience in the field of SEO and backlink building. The ideal candidate will be able to show previous accomplishments in boosting organic search visibility, creating useful content related to a client’s website, and getting those pages to rank in the major search engines. The solution should be tracked and monitored to maintain high-level optimization on a regular basis with minimal risk of being penalized. If you can provide these services with a track record of success, please do submit a proposal.