Guilherme Boller
Senior Product Designer

I’m a Interaction Design and Digital Business specialist focused on designing digital products for complex systems. I help teams turn complexity into usable, scalable experiences.

What I do

  • I work with product and engineering teams to understand real workflows, constraints, and user needs before proposing solutions. This includes interviews, shadowing, usability testing, and synthesis that directly informs product decisions.

  • I design interfaces for systems with dense rules, legacy constraints, and high cognitive load. My focus is on information architecture, interaction clarity, and decision-making support in SaaS, B2B, and public sector products.

  • I design dashboards and analytical tools that help teams read, compare, and act on data. This includes KPI definition, visual hierarchy, interaction patterns, and scalable DataViz components.

  • Item descriptionI help teams structure and evolve design systems that support multiple products or surfaces. From component definition to usage rules, documentation, and alignment with engineering.

Selected cases

SAJ Online · Public Sector ECMS

Redesign and evolution of a case management system used by prosecutor’s offices across multiple Brazilian states. Focus on MVP refinement, information architecture, and usability under legal and technical constraints.

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Bússola · Grupo Boticário

Design of a data visualization platform that replaced over 100 pages of printed reports with a single interactive product, adopted by commercial and executive teams across business units.

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Cidade Matarazzo · SuperApp

Design of ticketing, check-in, and cultural experience flows for a luxury SuperApp, including information architecture and mobile-first UX for events and exhibitions.

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Thoughts

How I actually approach complex systems and where trust breaks 

by Guilherme Boller | Feb, 2026 | Medium

How I actually approach complex systems and where trust breaks Someone asked me to go deeper on how I approach complex systems, specifically, where trust breaks and what I do about it. I’ve been …

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Professional Recap 2025

by Guilherme Boller | Feb, 2026 | Medium

My work in Product and Complex Systems: applied learnings, method, and impact. In 2025, I worked on a system used daily by public institutions, where imprecise decisions, incomplete data, …

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ABOUT

Brazilian-Italian, Senior Product Designer, Interaction Design and Digital Business Specialist

Delivered results to 6+ products with multidisciplinary and international teams as an end-to-end UI/UX designer. I've been working since 2016 as digital designer, specialized in interaction design and digital business with experience in product creation, strategy and analysis.

Full Profile

I drive transformation and growth
in digital products and businesses
by understanding contexts through communication, strategy, study and research.
Shaping and improving the present while preparing for the future.

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