2 slots available in Q3'26.

Design Partner + AI for founders

I help SaaS and AI startups with end-to-end product design and strategy, from discovery to development.

Three principles I don't negotiate

If what you expect from a designer is painting screens, close this tab.

If you want someone who understands your business and helps you design your product to extract maximum value across horizons 1, 2 and 3, keep reading.

I don't design screens, I design systems.My job is to make your product work as a system of aligned incentives between users and the business. The product is where the value exchange happens. It does not have to be a screen — it can be a JSON or an automated flow.
Before being a designer, I am a researcher.And before executing, I validate. Designing at a startup carries a responsibility: keeping the team from building in vain. So before designing, I stress-test your hypothesis with a method I have been refining for over 10 years.
80% of the strategic work happens before design.When the problem is well defined, its materialisation follows naturally: not magic, just putting the pieces together. A product that is well defined from the start saves a startup hundreds of wasted development hours.

Isaac Moreno
CEO MapasubastasIsaac Moreno
Ways of working

Three ways of working together. None of them starts with a blank Figma.

Product Discovery & Audit

I combine discovery and research with a dual audit — UX and strategy — to review the experience, the business model and the competition. I define the problems (usability ones included) and spot strategic opportunities, leaving you a clear map of priorities to move forward without wasted work.

End-to-end Product Design

I design the system and interface that aligns incentives between users and the business, with simple, scalable solutions built to grow across horizons 1, 2 and 3. I build from scratch or redesign what you already have to improve your conversion. I adapt delivery to your stack — from Figma to front-end code.

Dev-ready Design System

I build the design system that turns your product into a coherent whole, letting you ship new interface decisions with maximum agility, full control and agentic integration.

Fractional Design Partner

I work alongside founders as a design, strategy and build partner: we define the roadmap, prioritize and make decisions with a business lens. I take it all the way, from discovery to implementation. Design as a growth lever, not a cost — with the involvement of someone on the inside and the perspective of someone on the outside.

Selected work 2024-2026

Three engagements where the decision mattered more than the screen.

Juan Alonso

If this resonates...

The time to look for a design partner is before you need one urgently.

If you're building something where complexity refuses to be tamed — an AI product that's hard to explain, a SaaS growing faster than its UX, an MVP you don't know where to crack open — write to me.

We always start with a free 30-minute call. If after that call I don't think I can help you, I'll say so and point you to someone who can.