Hi! I'm Nico.

I help technical founders get more customers by building their marketing in code.

When a build proves useful, I turn it into a field note: the thinking, prompts, code, and reusable pieces behind it.

Growth is a never-ending
game of experiments

I run experiments on the site, in search, in the product and in email. The ones worth reusing become builds.

TikTok organic v2 Webinar promo copy X carousel test Reddit thread seed LP hero copy #4 Quora answer push SEO refresh batch Pricing nudge Email subject A/B Onboarding skip Free trial 7 days Pop-up timing Footer CTA rework Referral v3 TikTok organic v2 Cold email A/B Webinar promo Onboarding skip Pricing nudge Footer CTA TikTok organic Cold email A/B Webinar promo Onboarding skip Pricing nudge LP hero copy

The marketing I build for technical founders, from the site to the emails.

Nicolaas Spijker

Six years in product marketing, now shipping the code.

I was Rock's first marketing hire and later led B2B product marketing at bunq. Today I work as a marketing engineer.

I still start with who the product is for and why they buy. Then I build the pages, product screens and emails around that, and hand them over as code your engineers can review.

Founders and marketing leads on working with me