An SEO consultant helps businesses improve their website’s visibility on search engines like Google. They offer services such as keyword research, link building, SEO reporting, on-page SEO, technical SEO, and local SEO. If a business’s organic traffic has dropped, they have technical issues with their website, their competitors are getting more search traffic, or they want to rank higher for important keywords, it may be time to hire an SEO consultant. When hiring an SEO consultant, it’s important to ask questions about their pricing, specialization, track record, guarantees, SEO tools they use, and their approach to Google’s guidelines.

source: What Is an SEO Consultant? Do You Need One?