Boost My Website's Off-Page SEO

I'm looking for an SEO expert focused on enhancing my website's off-page SEO, particularly through backlink building. Your role would primarily involve devising and implementing a comprehensive backlink strategy.

Ideal Skills and Experience:
- Proven track record in off-page SEO, specifically backlink building.
- Familiarity with various backlink sources.
- Experience in SEO for websites in my niche (please specify your previous projects).

Please note that I am not currently interested in social media marketing or guest posting, though these may be part of future projects.