Advanced Off-page SEO for educationl ERP system Brazil ( Portuguese )

My website's main goal is to improve search engine rankings in a highly competitive industry ( educational managment systems in Brazil ) . I'm specifically looking for Off-page SEO services.

Key Points:
- My website is already optimized on-page, what I'm after is an expert who can help me with the off-page SEO strategies.
- As the competition is tough, I need someone who has a proven track record in improving the search engine rankings for websites in highly competitive industries.
- The person should be able to build high-quality backlinks, guest posts, social media signals, and other off-page SEO strategies to improve the overall search engine ranking and visibility of my website.

Ideal Skills:
- Proven experience in Off-page SEO
- Experience in highly competitive industries
- Expertise in building high-quality backlinks
- Knowledge of the latest trends in the SEO industry
- Results-driven mindset and ability to track and report on the progress of the SEO efforts.

Please provide examples of similar projects you've worked on, and the results you were able to achieve.