I design AI products. Then I ship them
I turn complex ideas into products people can understand, use, and pay for. Strategy, design, code and growth, from one person
A product designer who can actually build the product
I have an MBA, more than 15 years in design, and I still write production code every day. So the business model, the technical limits and what happens after launch are part of the design from the first sketch.
My work has shipped in AI, SaaS, accessibility, fintech, Web3 and consumer apps, used by millions of people. I work in Spanish, English, Japanese and Chinese.
Apple Design Award 2025. Inclusivity
My work on Speechify was recognized by Apple with the 2025 Apple Design Award for Inclusivity.
Designing for people who read, see and hear differently is the hardest product work I know, and it shaped everything I built after.
- Award
- Apple Design Award
- Category
- Inclusivity
- Product
- Speechify
- Year
- 2025
I build with AI every day
I’m an official Claude Partner, and Claude Code is how I design, prototype, build and ship.
AI made screens cheap. Deciding what should exist is still the hard part, and that is the job.
- Claude Partner
- Claude Code
- Focus
- AI-native product design and development
- Recognized
- 2026
I build my own products too
Client work tells you I can collaborate.
My own products tell you I can ship.
For each of these, I owned the idea, product strategy, UX, interface, code, launch, and everything that happened after launch.
Products designed to move something
Client work across AI, consumer apps, health, Web3 and film. Every case study says what changed after it shipped, where the data exists.
What people say after we work together
“Carlos handled all of our product design and frontend UI/UX work during rapid development of our job board platform. I highly recommend him!”
“Carlos has contributed so much in bringing Web3Auth’s UX forward, really appreciate all the work he has done.”
“It’s always a pleasure to work with Carlos. He has good communication skills. He can transform ideas into designs and implement those designs in a clean and nice front-end.”
From product idea to production
Strategy, design, engineering and growth usually sit in four teams. With me they stay in one conversation, so nothing gets lost in a handoff.
I design AI products around what the model can actually do, what users need to understand, and where human judgment still matters.
- Product strategy
- AI interaction design
- UX/UI design
- User flows
- Prototyping
- Design systems
- Agent and conversational UX
I turn product decisions into working software.
- Web applications
- iOS products
- macOS experiences
- Frontend development
- Interactive prototypes
- AI integrations
I design the moments that turn usage into a business.
- Onboarding
- Activation
- Paywalls
- Pricing and packaging
- Upsells
- Conversion
- Retention
- Experimentation
Before designing screens, I help teams decide what deserves to be built.
- Product positioning
- Feature strategy
- Roadmapping
- Competitive analysis
- Product-market questions
- Business model thinking
I connect product, brand, website, positioning, SEO, content, and launch so they tell the same story.
- Brand systems
- Product websites
- SEO and content
- Launch strategy
- Product storytelling
Three TEDx stages. The United Nations
I talk about design, technology and AI, and about the responsibility of building products people depend on.
Talk 01 · Tokyo, JP
TEDxInnovation U
Watch talk ↗
Talk 02 · Awaji, JP
TEDx Awaji
Watch talk ↗
Talk 03 · Hangzhou, CN
TEDx ZSJU
Watch talk
In the press
Stories and press releases in English, Spanish, and Japanese.
Press release · Also on FOX8, NEWS10 ABC, WJTV, Japan Technology Journal, Japan Culture Press, EIN Presswire
Press release · Also on EIN Technology Today
Press release · Also on The National Law Review, Asia Media News, EIN World News Report
Press release · Also on WFLA, EIN World News Report
Press release
Press release · Also on Livedoor, Ameblo, note, Qiita, Seesaa, News Times, Rensai, Japan News Hub
I write about what I learn by shipping
Mostly things I learned because I built something, shipped it, broke it, measured it, or had to fix it.
Frequently asked questions
What does an AI product designer do?
An AI product designer turns AI capabilities into understandable product experiences. That includes deciding where AI should be used, designing interactions with models and agents, handling uncertainty and failure states, and building interfaces that help people understand what the system is doing.
My work extends beyond UX/UI into product strategy, engineering, monetization, and launch.
What is a design engineer?
A design engineer works across both product design and implementation.
I design interfaces and product flows, but I also write the code required to turn them into working products. This reduces handoff, makes prototyping faster, and keeps the final implementation closer to the original product intent.
Do you work on existing products or only new products?
Both.
I work on zero-to-one products as well as existing products that need stronger onboarding, UX, monetization, retention, positioning, or design systems.
What platforms do you work on?
My work includes web products, SaaS, iOS applications, macOS experiences, AI interfaces, conversational products, and connected hardware experiences.
Where are you based?
Tokyo, Japan.
I work with companies and teams internationally and can collaborate in Spanish, English, Japanese, and Chinese.
Can you help with both design and development?
Yes.
That is one of the main reasons teams hire me. I can take a product from strategy and UX through visual design, prototyping, and implementation without separating design and engineering into two disconnected processes.
Have a product to build, fix, or grow?
Tell me what you are building, what is not working, and what you want the product to achieve.