Diego Ramos Retamal
Senior Product Designer. Onboarding, growth, and systems. Based in Berlin.
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.
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.
- 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
Don't ask users to trust you before you've given them a reason to.
Fewer screens means nothing if each one asks too much at once.
Users don't drop off because they're confused. They drop off because they're uncertain.
A design that can't be instrumented isn't ready to ship.
One-off screens are future debt. Systems compound in the right direction.
The gap between design and engineering is where quality dies.
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.
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.
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
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