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Diego Ramos Retamal

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
  • Onboarding and activation design
  • Conversion rate optimization and funnel diagnostics
  • A/B testing and experiment design
  • Design systems and component architecture
  • Product strategy and problem framing
  • Working directly with engineering and data
  • Mobile-first product thinking across iOS, Android, and Web
  • AI-assisted product design
  • Designing for AI-powered features
  • Prompt design and LLM interaction patterns
  • Vibe coding with Claude Code
Design principles
01
Value before commitment.

Don't ask users to trust you before you've given them a reason to.

02
Reduce cognitive load, not just steps.

Fewer screens means nothing if each one asks too much at once.

03
Design for trust, not just clarity.

Users don't drop off because they're confused. They drop off because they're uncertain.

04
Measure what you ship.

A design that can't be instrumented isn't ready to ship.

05
Build for the next feature, not just this one.

One-off screens are future debt. Systems compound in the right direction.

06
Stay close to implementation.

The gap between design and engineering is where quality dies.

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.

Mentorship

I work with product designers on their biggest questions.

If you're deciding between a job jump, stuck on your next portfolio project, or trying to figure out how to integrate code into your design workflow, let's talk.

€150/hour. One-hour call via Zoom. I send you an invoice after.

You bring the question. I bring the framework, honest feedback, and network if relevant.

Most common topics:

  • Career transitions and salary negotiation
  • Design system and component architecture
  • How to position design + code work
  • Product thinking and metrics
  • Case study strategy
Book a session
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