What does an SEO specialist actually do?

SEO specialist is one of those job titles everyone has a vague sense of, but few people can explain in concrete terms. That makes it hard to judge whether you actually need one, and if so, for what exactly. This article gives a practical answer, from the perspective of a freelancer who has done this work for over a decade.

The short answer

An SEO specialist makes sure a website becomes more visible in search engines like Google, with the goal of attracting more relevant visitors and, ultimately, more leads or customers. That doesn’t happen through a single trick. It’s a combination of technical groundwork, content decisions, and continuous adjustment based on data.

The three pillars of the work

In practice, an SEO specialist’s work breaks down into three recognisable parts.

  1. Technical foundation. A site needs to load quickly, be indexed correctly, and have a logical structure. Without that foundation, even the best content won’t achieve much, no matter how well it’s written.
  2. Content and search intent. What is your audience actually searching for, and does your existing content match that? This requires keyword research, but just as importantly, real understanding of what someone is actually trying to find out.
  3. Measuring and adjusting. SEO isn’t a one-off task. Rankings shift, competitors update their content, and Google regularly changes how it evaluates results. An SEO specialist tracks that and keeps adjusting the strategy accordingly.

In-house versus freelance: why the distinction matters

A lot of the information online about “what does an SEO specialist do” is written from a recruitment angle: salary ranges, job requirements, career paths. Useful if you’re considering that career yourself, but less relevant if you’re looking to hire an SEO specialist.

For businesses, the real question is usually different: do you need someone on staff, or is a freelancer the better fit? A freelance SEO specialist typically works with multiple clients at once, which means you benefit from broader experience without the fixed cost of a full-time employee. For most small and mid-sized organisations, that’s the more flexible and affordable option, especially when there isn’t enough work to justify a full-time role.

When do you actually need one?

A few signs that it’s worth bringing someone in:

  • Your website gets little organic traffic, while competitors are ranking well
  • Content is being produced, but without a clear reason behind the topic choices
  • Nobody in the organisation is actually tracking rankings and traffic
  • SEO gets done “on the side,” without anyone truly owning it

If any of this sounds familiar, dedicated SEO support is likely to deliver more than it costs. When businesses reach that point, hiring a freelance SEO specialist is often the better fit over an agency: more direct contact, and no extra layers between you and the person doing the work.

Curious what this could mean for your organisation?

I work as a freelance SEO specialist for organisations that want to grow their organic traffic structurally, with a direct line to the person actually doing the work. Read more about my approach as an SEO specialist, or get in touch to discuss what’s possible in your situation.

Bouke van den Berg

Written by

Bouke van den Berg

SEO specialist and AI expert with a background in journalism and copywriting. Since 2014 I have been helping organisations become more visible online, and I now build automations with n8n and AI for business owners who could use their time back.