Paulo de Vries
Senior Product Designer × CRO · builds AI
Senior product designer and conversion specialist with ten years making big-brand products convert at Mediahuis and dentsu. I prove what works with experiments, not opinions: I built my group's experimentation platform and tooling, and recent A/B tests lifted subscription conversion +22% and +20%. I also build the AI inside products now, from autonomous agents in production to getting pages cited by ChatGPT.
Skills
Conversion & experimentation
A/B testing, funnel analysis, Contentsquare
Measurement
Google Tag Manager, GA4, Search Console
Design
Figma, UX/UI, design systems
Build
HTML/CSS/JS, GitLab, Claude Code, MCP, autonomous agents
Building
AcePilot — a self-improving multi-agent OS, built solo; runs unattended in production behind a guardrails layer.
TaskPrio — a task queue for AI agents (MCP server + REST API). Live at taskprio.com.
GEO — get pages cited by ChatGPT and Perplexity; doubled one site's visitors from AI answers.
Education
BA, Design Academy EindhovenMan & Communication, minor Marketing
Certification
Contentsquare Certified2023
Languages
Dutch — native
English — fluent
English — fluent
Experience
Senior CRO Specialist & UX Designer · Mediahuis
- Redesigned the De Telegraaf subscription shop, its design based on an AI analysis of Europe's best subscription shops; the A/B test lifted conversion +22%.
- Renamed a subscription tier from "Basic" to "Start", lifting conversion a further +20%.
- Built the group's Experimentation Hub — one central platform for every A/B-test plan and analysis across Mediahuis.
- Built an internal A/B-test builder that turns a variant's design (a JPG) into standardised, tag-manager-compliant test code, so experiments ship simply and to spec.
- Own the experimentation loop end to end: hypothesis, design, tracking (GTM, GA4), A/B test, and analysis, working directly in the dev team's repo (GitLab).
- Drive discovery, roadmap input and stakeholder reporting across the subscription funnel.
UX Designer & CRO Consultant · dentsu
- Conversion and UX consulting for client brands: designed and A/B-tested landing and checkout-continuation pages.
- Brought experimentation discipline to client design work — research and test before shipping.
Product Designer & Marketer · JobBoost
- Designed the product end to end and ran growth marketing for a job-matching platform.
- Built and tested landing and onboarding flows, owning the path from first visit to sign-up.
Independent — Conversion & growth
- Grew a local fitness studio to 700+ bookings a month with conversion work and organic social — the same CRO craft, end to end.