I am definitely skilled at all aspects SEO (tech audit, local SEO, link building)
During my long career, I have acquired a lot of other skills:
-email marketing (from developing a custom email template to building triggered email campaign in Mailchimp )
-HTML and CSS. can build WordPress themes from PSD
-WordPress skills. can migrate the site to different hosting. setup and fine-tuning.
-data mining (with screaming frog and other web scrapers)