About me
Jon Legene Kolstrup
Digital marketing specialist. SEO, GEO and AI-native execution.
I work in-house in digital marketing. Before that: e-commerce, agency, and a stretch teaching Generative Engine Optimization. This site is where the work that does not fit a job description lives.
Record
Where I have worked
Now
Digital marketing, in-house
In-house digital marketing at a Danish agency, across its client accounts. Technical SEO and Search Console analysis, Google Ads audits and daily search term work, multilingual WordPress builds running to a few hundred pages, and the content and social output around them. I also write the working standards the projects run on, so any of it can be handed to somebody else without a meeting.
2025 to present
JLK Creative
My own work, alongside the job. Web builds, brand design, and the occasional one-off project for people who ask.
2025
Itucation
Assistant teacher and AI specialist on a six week intensive digital marketing course. I built and delivered the Generative Engine Optimization module, and advised on using Google AI Studio and NotebookLM in content production.
2024 to 2025
ZZ Games, Online Marketing Manager
Took a physical games shop into real e-commerce. I rebuilt the SEO structure, put proper data-driven flows into Klaviyo, and reworked the customer journey and product copy around what people actually do. Online revenue grew strongly over the year, first-time buyers converted better, and the community started coming back.
2018 to 2022
CM Relations, Lead Content Writer and Digital Marketing Manager
First full-time employee, through the growth from start-up to an established sales organisation acting as the external sales channel for one of Denmark's largest energy companies. Web and content, sales training material, and lead generation through Meta.
2016 to 2018
Rocktale Studios, Freelance Writer
Film and pop culture writing for a niche audience, to deadline, in a voice that was not mine.
Account
How I got here
I came into marketing sideways. A degree in history, then one in media studies, then copywriting, then SEO, and eventually the realisation that I could not get what I wanted out of a website unless I could build it myself. So I learned that too. The upshot is that I am rarely the person who has to hand a problem to somebody else.
The history degree turned out to be the most useful thing I own, which nobody warned me about. It is three years of source criticism: is this claim supported, where did it come from, and is the source primary or just somebody repeating somebody else. That is exactly what AI work demands. Agents are fast and confidently wrong, and the only thing between that and published nonsense is a person who checks the claim against the source. It cuts both ways. I have taken a marketing line out of an article because I went to check it and found two competitors describing the same feature on their own pages. I do not extend a model more trust than I would extend an undated pamphlet, and I extend a marketing claim about the same.
It is also why I went at GEO early. Generative Engine Optimization is the question of whether an AI assistant can find what you published, understand it, and represent it correctly, and it matters more every year. I have taught it, on a six week course, aimed at ChatGPT and Gemini. The llms.txt on this site is there for the same reason, and it is maintained rather than decorative.
Provenance
Background
- Cand.mag., Media Studies
- University of Copenhagen, 2011 to 2015. Thesis on digital consumer behaviour and nudging: how behavioural design moves people, across social and traditional media. It is the theory underneath everything I later did with conversion.
- BA, History
- University of Copenhagen, 2008 to 2011. Methodological source criticism and credibility analysis. See above: it is the part of my education I use most, and not for the reason anyone expects.
- Courses and languages
- Six week intensive in digital marketing at Itucation, and effective written communication at Gottlieb Partners. Danish native, English fluent, German and Swedish or Norwegian at a working level.