Diego Ramos Retamal

Senior Product Designer. Onboarding, growth, and systems. Based in Berlin.

The short version

I design the parts of products that determine whether people stay or leave: onboarding flows, offer moments, activation funnels. Not as someone handed a brief, but as someone who helps write it. I've been doing this for 10+ years across Insurtech, Healthcare, and Telecom, and I still think the most interesting design problems live in the data, not the mockup.

How I work

I treat every design decision as a hypothesis. Before opening Figma, I want to know the drop-off point, the segment, and what success looks like in numbers. The interface is the last 10%. The real work is upstream.

I run experiments. Not as a formality, but as a way to be honest about what actually works. I've instrumented designs, read the data, been wrong, and iterated. Shipping is a checkpoint, not the finish line.

I build systems because single screens don't scale. Every component I ship is designed to be reused, extended, and understood without a meeting. If the next designer can't pick it up without asking me, it's not done.

I work closely with engineers and analysts. Not by scheduling syncs, but by being in the same documents and conversations. Implementation details are design details.

What I'm good at

01Onboarding and activation design
02Conversion rate optimization and funnel diagnostics
03A/B testing and experiment design
04Design systems and component architecture
05Product strategy and problem framing
06Working directly with engineering and data
07Mobile-first product thinking across iOS, Android, and Web
08AI-assisted design
09Designing for AI-powered features
10Prompt design and LLM interaction patterns

What I'm looking for

A product-led team with real growth problems, where experimentation is how decisions get made and not something that gets approved once a quarter. I want to own the problem, not just the deliverable. If design is treated as a service function, it's not the right fit.

Outside of work

I live in Berlin with Pepe, a long-legged dachshund with strong opinions about when I should stop working. He's wrong about the timing, but probably right about everything else.

When not designing: rugby, Pokémon, and JoJo's Bizarre Adventure, roughly in that order.

Background

Experience: Senior Product Designer @ CLARK (current); Previously: Pets Deli, Vodafone, BEWATEC, Opinno, Vocento, Néctar, adidas, Condé Nast, LEGO
Education: IE Business School, Master in Customer Experience & Innovation; University of the Arts London, BA Interaction Design; MIT, Design Thinking
Tools: Figma, Notion, Claude Code, shadcn/ui, Next.js
Languages: Spanish (native), English (fluent), German (basic)
Based in: Berlin, Germany
Interests: Rugby, Pokémon, JoJo's Bizarre Adventure
Contact: hello@diegoramosretamal.info