I’m Esther Bellido, a Principal Product Designer specializing in Design Systems, Systems Thinking, and Behavioral Design.

After 19 years designing products and leading systems and teams in enterprise environments, I understood something that changed the way I design: behavior doesn’t fail by accident. It’s a consequence of the system that sustains it.

I understood it while working on projects where instructions were not enough, and behavior depended on how the system silently shaped people’s reality.

That was when Systems Thinking stopped being a method and became a lens.

I started observing patterns beyond the interface: how habits are formed, how friction emerges, how people collaborate, and how certain structures influence the way we decide, work, and interact.

It’s the same lens I apply when designing products, teams, and Design Systems.

Because the same principles that allow a system to scale also allow teams to scale: structural clarity, consistency, and adaptation.

My professional training supports this practice. I’m certified by Nielsen Norman Group in UX and trained in Behavioral Design for Finance at Irrational Labs, experiences that expanded my understanding of how people interact with products, systems, and decisions.

I was one of the first Interface Design professors in Peru and developed UX programs for Coderhouse Argentina. Today, I lead Design Systems and teams at scale within enterprise environments, working on complex problems where a better interface alone is not enough.

Outside the corporate environment, I develop Moseeds: a project where I translate the mechanics behind human behavior, limiting beliefs, unconscious patterns, systems that keep people stuck, and structures that can set them free into clear, visual, and actionable content.

The premise is the same one I apply to design: people rarely change through discipline alone.

They change when they understand the structure sustaining what they unconsciously repeat.

If you’re working on complex systems
where behavior doesn’t align with intention, let’s talk.