SEO Boost for Topper Calculator

I am looking for an experienced SEO specialist to optimize my Topper Calculator website. The project requires complete On-Page, Off-Page, and Technical SEO. Tasks include keyword research, optimized meta tags, content improvement, internal linking, and image optimization. For Off-Page SEO, I need high-quality backlinks, guest posts, social bookmarking, and authority-building activities using only white-hat methods. Technical SEO tasks include improving site speed, fixing crawl issues, optimizing sitemaps, enhancing mobile usability, and improving Core Web Vitals. The goal is to boost organic traffic and achieve higher rankings. Please share your portfolio, tools you use, and your SEO strategy for this project.