Think. Design. Build.

I bring 15+ years of product craft, design leadership, and strong technical skills to every project.

Today, I design and build with AI directly in the codebase, from product thinking to launch, with less handoff.

Two tablet screens showing an interactive word search game highlighting AI skills from Juan Estupinan.
Two smartphone screens showing a Bforbank app: left screen displays product offerings including personal loans and mobile insurance; right screen shows details of a personal loan with remaining balance, repayment progress, and loan information.
Two tablet screens display Breathonance wellness website; top screen shows people seated on yoga mats with text about partnering in wellness, bottom screen features text about enhancing practice with music and images of people attending classes and meditating.
Two tablet screens showing an interactive word search game highlighting AI skills from Juan Estupinan.
Two smartphone screens showing a Bforbank app: left screen displays product offerings including personal loans and mobile insurance; right screen shows details of a personal loan with remaining balance, repayment progress, and loan information.
Two tablet screens display Breathonance wellness website; top screen shows people seated on yoga mats with text about partnering in wellness, bottom screen features text about enhancing practice with music and images of people attending classes and meditating.
Two black tablets side by side on a dark surface displaying a digital drawing app; the top shows three icons including a cloud with rain, a robot face, and a pixelated alien, the bottom shows text 'UX LOVE' with a simple smiley face below.
Two smartphones displaying Vogue Paris content; left shows a fashion article titled 'Parlez-vous Francais?' with images of models, right shows a Vogue Paris cover featuring a woman in a blue dress lying on a stone bench.
Two smartphones displaying the French news app Le Parisien with headlines about Nicolas Hulot and a protest after the Lubrizol factory fire in Rouen.
Two black tablets side by side on a dark surface displaying a digital drawing app; the top shows three icons including a cloud with rain, a robot face, and a pixelated alien, the bottom shows text 'UX LOVE' with a simple smiley face below.
Two smartphones displaying Vogue Paris content; left shows a fashion article titled 'Parlez-vous Francais?' with images of models, right shows a Vogue Paris cover featuring a woman in a blue dress lying on a stone bench.
Two smartphones displaying the French news app Le Parisien with headlines about Nicolas Hulot and a protest after the Lubrizol factory fire in Rouen.

Juan Estupinan
Product Design Lead

I work across strategy, design, and front-end, helping teams move from idea to product with less friction.

I combine AI agents for speed with a code-to-design loop for craft. That's how I build.

Portrait of Juan Estupinan founder of focuswave wearing a dark blue sweatshirt against an orange background.

From Design to Codebase

Most designers deliver specs. I use agentic development to design, prototype, and ship directly in the codebase, so the result stays close to what I designed.

Product Design

I design products that balance clarity, usability, and scalability. From interaction patterns to design systems, I create interfaces that are easier to use and faster to build.

AI Product Development

I build with AI in two complementary modes: agentic development for speed, and a code-to-design loop for craft.

User Experience (UX)

I study user behavior to uncover real needs and translate insights into clear, usable experiences. Research and testing keep decisions grounded.

Front-end Development

I ship interfaces, not just specs. I move from design intent to working front-end in React/Next.js and Webflow, which speeds up iteration and improves build quality.

Think. Design. Build.

Explore Some of My Projects

15+ years designing and building mobile apps, web platforms, and products built with AI.

BforBank

App
Fintech

Designed BforBank’s financial marketplace, giving users a simple way to explore and activate complex financial products like credits, savings, and insurance with transparency and confidence.

Three smartphone screens showing BforBank app credit services: personal loan offers, credit buyback information with a puzzle illustration, and loan repayment details with progress bar and contract info.

Le Parisien

App
News & Media

Redesigned the Le Parisien mobile app into a modern news experience that improved navigation, boosted engagement, and became the go-to destination for French news.

Three smartphone screens showing the Le Parisien news app with headlines about Nicolas Hulot, a factory fire protest, yellow vest clashes, typhoon Hagibis, and property tax advice.

Condé Nast

App
Fashion & Luxury

Led Condé Nast's shift from print to mobile, launching 20+ apps for brands like Vogue, GQ, and Vanity Fair while building the digital publishing framework that brought magazine content to smartphones and tablets.

Three smartphones displaying different fashion magazine screens: left shows a party scene with 'Parlez-vous Francais?' headline, center shows GQ magazine cover with a man in a white shirt, right shows a woman in a red skirt and white Dior T-shirt against a decorative iron gate.

Breathonance.com

Web
Healthcare

Built a complete e-learning platform for breathwork, designing the brand, shaping the user experience, and delivering the full site in Webflow with Stripe payments and Kajabi course integration.

Four tablet screens showing Breathonance website pages: homepage with group meditation, course price of $99.99 USD, music-enhanced practice section, and daily pranayama practice steps.

Skills Explorer

AI
Micro App

Designed and built a word-search game in React and Next.js that showcases professional skills with canvas animations, custom sound design, and polished micro-interactions.

Word search game with highlighted words: navigation, css, typography, vision, management, code, typography, and typography.

Discover All Projects

Projects
App
Web
AI

Explore the digital products I've designed and built: mobile apps, web platforms, and AI products that combine strategy, design, and front-end development.

Breathonance.com

Web
Healthcare

Built a complete e-learning platform for breathwork, designing the brand, shaping the user experience, and delivering the full site in Webflow with Stripe payments and Kajabi course integration.

Four tablet screens showing Breathonance website pages: homepage with group meditation, course price of $99.99 USD, music-enhanced practice section, and daily pranayama practice steps.

Pranayamarx.com

Web
Marketing

Created a medical-grade website for a science-based breathing practice, explaining pranayama clearly while helping patients book consultations and access trusted educational content.

Four digital tablet screens displaying a website for Dr. Amit Anand, showcasing his profile, a contact form, medical research on Pranayama, and information about UJJAYI breathing technique with scientific graphs.

Reactandshare.com

Web
SaaS

Developed a SaaS marketing website in Webflow that explains the value of reaction-based analytics, featuring product pages, a demo booking flow, and a fully integrated CMS.

Four tablet screens showing React & Share website pages, including an introduction, contact form, insights and reporting features, and trust statistics with logos of partner organizations.

Discover All Projects

Projects
App
Web
AI

Explore the digital products I've designed and built: mobile apps, web platforms, and AI products that combine strategy, design, and front-end development.

Skills Explorer

AI
Micro App

Designed and built a word-search game in React and Next.js that showcases my professional skills with canvas animations, custom sound design, and polished micro-interactions.

Word search game with highlighted words: navigation, css, typography, vision, management, code, typography, and typography.

Focus Paint

AI
Micro App

Created a playful drawing micro-app inspired by 90s MS Paint, using AI coding agents to explore how ideas can become working products faster.

User interface showing three icons—a thunderstorm cloud, a robot face highlighted with a dashed orange box, and a pixelated alien—above a toolbar with color options and editing tools.

Polyform

AI
Micro App

Built a lightweight prototyping playground for assembling wireframes with shadcn/ui components, providing a fast, modular way to explore layouts and experiment with UI patterns.

User interface demo showing form fields, input types, cards, buttons, sliders, checkboxes, radio buttons, toggles, and menus with 'In Development' overlay text.

Discover All Projects

Projects
App
Web
AI

Explore the digital products I've designed and built: mobile apps, web platforms, and AI products that combine strategy, design, and front-end development.

How I Help Teams Ship Better Products

Senior Product Partner

You get a senior partner with 15+ years of experience building digital products: someone who clarifies direction fast, aligns stakeholders, and contributes from day one.

From Design to Codebase

Most designers stop at the handoff. I design and build directly in React/Next.js and Webflow, which means fewer mismatches, faster cycles, and interfaces that stay true to the design intent.

Building with AI, for real

Product development has changed. I combine AI agents for speed with a code-to-design loop for craft. This is not theory. It's how I build products today.

Leading with Clarity

As Head of Mobile at Condé Nast, I led cross-functional teams of 10+ designers and engineers. That experience shaped how I lead: aligning stakeholders, setting direction, and improving design quality through clear decisions and feedback.

Let’s Build Your Next Product

I help teams design and build digital products using AI. Ready to start?