I help companies turn designs into revenue.
I work at the intersection of design, engineering, and business. Not just aesthetics. I write the code, I work hands-on with AI tools, and I ship things myself.
An Apple Design Award winner with an MBA and a background in software engineering.
That combination changes how I make decisions upstream. You stop designing for an idealized version of the product and start designing for what can actually be built, maintained, and grown.
My work has shipped to millions of users across education, SaaS, Web3, health tech, and consumer apps. I have taken brands from zero to millions of impressions, led design for products at the frontier of AI and consumer tech, and sat on founding teams whose products went on to define their categories.
Living in Tokyo sharpened everything. The city holds a standard for craft, service, and attention so high that mediocrity stands out immediately. I bring that lens to every product I touch.
I speak Spanish, English, Japanese, and Chinese, which means I can work with your team and your users wherever they are.
Apple Design Award 2025, Inclusivity.
Apple hands out a handful of these a year, across the whole App Store. Mine came for accessibility work on Speechify, software people use because reading the normal way does not work for them.
It sits this high on the page for one reason. Everything else here is me telling you the work is good. This is the part where somebody else said it, and the somebody else was Apple.
- Category
- Inclusivity
- Year
- 2025
- Product
- Speechify
Apps owned by me.
Client work is most of what I do, and most of it is under someone else’s name. These three are mine end to end: my idea, my design, my code, my name on the App Store listing.
What I can do.
Most products ship the interface the team could build, not the one people actually needed. I start from how users move through your product and design the surface around that. Retention is the number that moves first.
I build and ship apps and websites end to end. Because I write the code, the handoff problem disappears. Nothing gets designed that cannot be built, and nothing gets built that quietly drops the design.
Brands rarely fail loudly. They drift, one off-brand slide and one improvised color at a time, until nobody recognizes them. Guidelines are what stop the drift, at any company size.
A logo is the smallest piece of your brand doing the largest amount of work. It gets one second to make an impression, then repeats that impression everywhere, for years.
Confusing buyer journeys usually get answered with more marketing spend. That is expensive and it treats the symptom. I fix the journey instead, so the same traffic converts and comes back.
Latest works.
The magic of good design.
Design gets treated as the part you do at the end, after the real decisions are made. It is the opposite. By the time an interface exists, most of the money has already been won or lost upstream, in choices nobody labelled as design at the time.
The first three numbers below are industry research, not my engagements. I keep them here because they match what I watch happen: the same product, redrawn, quietly starts making more money. Ask me on a call and I will walk you through the specific ones from my own work.
Sites with better experiences grow at nearly twice the rate. 88% of users never come back after one bad session, and you rarely hear why.
Usable design lifts conversion by up to 83%. On a typical 2 to 3% ecommerce baseline, good design adds another 66% on top.
AI driven personalization moves sales 15 to 20%. Targeted email drives transaction rates six times higher than the untargeted kind.
Design that cannot be built gets quietly redrawn by an engineer at 2am, and the compromise is what ships. I write the code, so there is no second version of the product that nobody signed off on.
Most design arguments are business arguments wearing a design costume. Someone has to say out loud what the company is actually optimizing for. With the MBA in the room that happens in the first meeting instead of the fifth round of mockups.
Three TEDx stages. The United Nations.
Talk 01 — Tokyo, JP
TEDx Innovation
Watch ↗
Talk 02 — Awaji, JP
TEDx Awaji
Watch ↗
Talk 03 — China
TEDx ZSJU
Read ↗
Speaker at the United Nations, with work featured in international media across three continents.
On the record.
“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.”
“A great marketing director makes your job easy and that’s what Carlos did. He’s extremely organized, highly communicative, and efficient in all aspects of his role.”
In the press.
Covered in English, Spanish, and Japanese, across three continents.
Writing about my work? Biographies, high resolution photography and the sources behind everything I argue are ready to use.
Latest posts.
If you need a designer who understands your business goals, let’s talk.
Data-informed decisions. Work that actually converts.