What does a SEO marketer do?
Day-to-day responsibilities
Most of an SEO marketer's week is split between research and execution. Keyword research identifies what terms a target audience is actually searching for and how competitive each one is. On-page work involves optimising existing content, metadata, and internal linking to better match those terms. Technical tasks — improving page speed, fixing crawl errors, ensuring proper indexing — round out the more hands-on side of the role.
Monitoring and strategy
Beyond hands-on work, SEO marketers continuously track rankings and analyse performance data — which pages are gaining or losing visibility, where traffic is actually converting, and which competitors are moving up. This data feeds back into strategy: deciding which content gaps to fill next, or which technical issues are worth prioritising.
In-house vs freelance
An SEO marketer might work as a freelancer serving several clients across different industries, or as part of an in-house marketing team focused entirely on one organisation's online presence. The skillset is broadly the same either way, though in-house roles tend to involve deeper familiarity with one brand's specific technical setup and content history.
Tools an SEO marketer typically uses daily
Most SEO marketers work across a consistent toolkit: keyword research platforms to size opportunities, rank-tracking tools to monitor position changes over time, site-crawling tools to catch technical issues at scale, and analytics platforms to connect SEO activity to actual business outcomes like leads or sales, not just traffic numbers alone.
How the role differs by company size
At a small business, one person often handles the entire SEO function — research, content, technical fixes and reporting all at once. At a larger organisation, SEO marketing often splits into specialised roles: technical SEO specialists, content strategists, and link-building or digital PR specialists, all coordinated by someone tracking the overall strategy.
How AI tools are changing the SEO marketer role
AI-powered tools now handle much of the repetitive research and reporting that used to consume an SEO marketer's time — generating keyword lists, drafting initial content outlines, or flagging technical issues automatically. This has shifted the role toward strategy, judgement, and interpreting what the data actually means for a specific business, rather than spending hours on manual data collection.
How to evaluate whether an SEO marketer is doing good work
Useful signals include whether they can clearly explain their reasoning for prioritising specific keywords or fixes, whether they track outcomes beyond vanity metrics like raw traffic, and whether their recommendations are grounded in actual data from your site rather than generic best-practice checklists applied without context.
Key Takeaways
- Core responsibilities: keyword research, on-page optimisation, technical fixes, and backlink building.
- Ongoing monitoring and data analysis feed back into strategy decisions.
- The role scales from one generalist (small business) to several specialists (larger teams).