Hired to lead design and I keep following the problem out of the room.
I'm interested in what makes things trustworthy, which turns out to be a bigger question than design. Lately that has meant AI, and the people asked to trust it before they have a reason to. I am open to VP and Head of Product Design roles and to product leadership roles, including the hybrid ones where product and design sit with the same person, from Santiago or abroad.
Let’s talk01 · what I do
I learn whatever I need to so that what we ship is worth trusting.
Most AI never makes the jump. Not because the model is not good enough, but because not enough people trust it to ship it, to let it touch money, to stop checking its work. Closing that gap is the job.
The proof
I am doing it again right now, on a product I cannot describe publicly yet, and the work sits before the interface question, in the evals, the data, the way the model behaves and the plumbing underneath it, deciding what it should answer, how we know when it is wrong, and whether it solves a problem worth solving at all. Curiosity pulls me there, and so does wanting to build something outstanding, and I stay hands on because I would rather not give a recommendation without knowing what it takes to make it work.
Testimonial 01
“Maca was an excellent thought partner who consistently went beyond the design brief, connecting user experience decisions to product strategy, technical implementation, and broader business goals. She pushed our team and its leaders to think more deeply about how design, product, and engineering choices fit together. Just as importantly, she is kind, considerate, and encouraging; the kind of colleague who makes both the work and the team better.”
02 · what the work is
That gap between a demo and a shipped product has a name, and it is trust.
At NotCo, using Giuseppe, a food development AI platform, was written into the scientists' KPIs. They still would not use it. The obvious read was usability, so we made the interface better. Adoption did not move. The real problem was bigger than the tool. It asked food scientists to change how they worked, to trust a model earlier in their process than their own judgment, and nothing about how it explained itself, or how it had been sold to them internally, gave them a reason to. Most of it was not on the screen. Building trust is not only a design job, it takes the teams that shape the model, the workflow, the incentives and the way a product explains itself, not just the one that owns the screen, and chasing it past the screen is why I have never stayed exclusively in the design lane.
The proof
It repeats everywhere. At BBVA, customers recoiled from a transfer that was too easy. Nothing was broken. It just moved faster than their sense of what was safe.
Testimonial 02
“I had the chance to work with Maca as head of UX and UI design, and she made a real difference on a project that was struggling with misalignment, high client expectations, and unclear leadership. She led our team through a post-mortem using her design thinking process, and it completely changed how we planned future projects. She also has a real talent for client discovery, participants consistently gave positive feedback, and she always followed up with clear, well presented next steps. Maca brings structure and care to messy situations, and any team would gain tremendous value from working with her.”
03 · why I can
Nothing I have made came out of one field. It came out of two that had no business touching.
Trust does not sit in one department, so I could not either. Design, strategy, engineering, AI. I move across all of them, because that is where the problem actually lives. But range like that does not arrive on its own. I left a role in banking to work with startups as an independent consultant, because I wanted to learn the ecosystem from the inside, across as many kinds of problem as I could get my hands on. That took a year. Then I wanted in properly, employed, close enough to shape product strategy and not just advise on it. That was the bet. It is why I can work at a collision now.
The proof
That year I worked with Shippter, Wheel the World, and Forum, a Spanish company building out its digital experience in Chile, and then took a UX manager role at Walmart, thirteen people, because I believed I could build something startup shaped inside a company that size. Two months in, NotCo called, and I stayed at Walmart as long as I could honestly justify before leaving at eight months, because NotCo is where the scope really opened up. There I prepared and ran pitch sessions with the cofounder and CEO in front of executives at the largest food companies in Latin America, and joined some of the global ones alongside our VP of AI. He pitched the company. I pitched the technology. That is the work I want to be closest to, where the product decision is being made and someone still has to know how the thing actually works.
Testimonial 03
“Working with Maca is always a pleasure. She not only has a great eye for design, but also strives to deeply understand both the technical underpinnings of the product and the broader business goals. This comprehensive approach toward product makes her a great asset.”
Testimonial 04
“En Wheel the World contratamos a Macarena como consultora en UX para diseñar la nueva versión de la plataforma gowheeltheworld.com. La experiencia de trabajar con ella fue excelente. Súper profesional, inteligente, y capacitada. Macarena maneja muy bien el proceso de UX completo, y nos ayudó a descubrir necesidades claves de nuestros usuarios e implementar funcionalidades que las resuelvan. Sus habilidades sociales le permitieron generar vínculos súper estrechos tanto con nuestro equipo como con nuestros usuarios que entrevistó. Estamos muy motivados con lanzar próximamente nuestra nueva plataforma que trabajamos con Maca!”
04 · how I work it
Within six months, every product development project at NotCo went through the platform.
At NotCo I created Usability Nights to change who shaped the platform, putting the scientists and chefs who were meant to use it in the same room as the ML and software engineers who had built it, and what came out of those rooms changed both the interface and the optimization model underneath it. Every session asked some version of the same question, how much of the black box a person needs to see before they will act on what a model tells them, and since the answer changes with the work and the person, it was never something we could settle from a desk. We ran more than eight of them over three years, in Santiago and then in San Francisco, some with forty people in the room, and the format never repeated, because each one was built around whatever we most needed to answer next.
The proof
The first one looked for the exact points where the platform worked or failed people rather than what they liked, and once the answers saturated we split into groups, each with an ML engineer, a software engineer and several scientists, developers and chefs, to build solutions for those specific spots together. What the sessions kept showing was that some of what people struggled with had to be fixed in the interface and some of it in the model itself, an optimization engine rather than a chatbot, and we could not tell which was which until the scientists described out loud how they actually make a decision, because both had been built from an engineer's assumption about how a scientist decides. That is how the sessions became the place where the AI team and the people it was built for actually met.
Testimonial 05
“I had the chance to work with Maca during our time together at NotCo. She led UX and product strategy for Giuseppe, NotCo's proprietary AI platform built for food product development scientists like me; people whose job is turning a vague product concept into something commercially viable and launch ready.
What impressed me most was her ability to bridge the physical science and engineering of food development with the design decisions that had to follow from it. She led the work to get there: Usability Nights, in-depth individual interviews, storyboarding, wireframes, and card sorting, among others. That research turned complicated development workflows into product directions that made a real difference in how we worked day to day.
She was proactive in a way nobody asked her to be, and held it together under tight timelines and competing priorities. She made time to meet regularly with me and another peer on the food science side — brainstorming, gathering feedback, and teaching us how she and her engineers used human centered design to turn user insights into improvements that meaningfully changed the day to day work of the scientists using Giuseppe. She was a kind and considerate leader, and a genuine friend and mentor to me.”
05 · the people
However temporary or hard a job feels, I want people to use it to build the career story they actually want.
I started leading teams at BBVA in 2016, and since then I have led teams of up to thirteen designers and built a research function, some of it across the region, without the pitch ever changing. When someone is writing their own success instead of clearing deadlines, they do the best work of their life, and they stay honest with me while they do it. And leading is not only the people. It is holding the direction of the work when a room of engineers, product managers and executives all want it pointed somewhere different. Usually they already agree on the goal and only disagree on the route, so I build the session that gets them to one, rather than pulling rank to pick it.
The proof
The BBVA designers I grew into UX practitioners, one of whom runs a UX practice now, are the version of this I can point to. But the part I care about happens quieter than that, in the people who asked me to mentor them without ever reporting to me, and in the ones who come back years later to talk about their careers. I keep their stories, to the point where I will stop someone I met once, twenty years ago, to tell them I remember what they were working toward when we met. I have never been interested in just keeping good people. I want to know where someone is actually trying to get to, and then make that distance something we are both working on. The alternative is holding people at whatever skills I happen to need from them, which is how you end up with a team that never gets bigger than the job.
Testimonial 06
“Tuve el agrado de trabajar con Maca en uno de los equipos de Diseño y Experiencia de Usuario que recuerdo con más cariño, donde adicional a los hitos en términos de Diseño de Producto y resultados de negocio, destaco la capacidad de liderazgo para formar equipos cohesionados y de alto rendimiento.”
06 · where it began
The lessons started when I was four. I still play, and I sing while I do. Years later, a piano arrived in the house because my brother played it. I taught myself by hunting down the guitar chords I already knew, one at a time, until songs I loved came out of a different instrument.
I think that is still how I learn. I find the underlying structure, work out what I do not yet understand, and keep experimenting until something begins to work in a form it was not originally built for.
A pandereta, a harmonica, and a violin my daughter plays have joined the collection since then. I used to record, layer the parts, and invent the percussion. I want to get back to writing my own music.
I am still chasing the same thing I was at four: making something that makes another person feel something.
07
What I do does not have a clean title yet, and I am fine with that, because it usually means I am early to something. The roles I want are the ones where product, design, AI and engineering have to be shaped together, whether the title on the door says design or product.
The way I approach it is not new. I have been listening closely, learning the structure, and making things in my own way since I was four.
Building trust is the work. AI products are where I am doing it right now.
That is the whole story. The collision is why I can chase it, the sessions and the teams are how, the music is where it began. Everything else on this site is evidence for those two sentences.