Designing digital products for 10+ years, Born in Rio, Based in Lisbon

Lui Spadarotto, Product Designer

Product designer with 10+ years of experience building digital products used by 10M+ users across 30+ countries. I've designed for fintech, healthtech, mobility, gaming, travel, and AI, from zero-to-one launches to enterprise-scale platforms.

Across senior and lead roles, I've shaped scalable systems, cross-functional product direction, and complex user experiences in regulated and high-constraint environments. I'm currently a Senior Product Designer at Kaizen Gaming, and independently building Roopzy, a scheduling and storefront platform for small businesses. My approach combines systems thinking, product strategy, and measurable impact.

I was born in Rio de Janeiro (RJ) and raised in Baixada Fluminense, witnessing my parents' journey from hardship to success. Unfortunately, I had a difficult relationship with them, especially my progenitor, who was often aggressive. At 20, I left my progenitor home in Vila Velha (ES) with 500 reais and moved to São Paulo (SP) with two friends I met online. Thankfully, they turned out to be wonderful people who supported me.

In São Paulo, I had the opportunity to grow professionally and meet incredible people who helped me along the way. In late 2019, I moved to Portugal, currently in Lisbon, where I continue to build my life with my chosen family (my friends), my three cats, who came with me from São Paulo, and my partner.

During my childhood, I moved around a lot due to the fact that my parents were in the military.

Work experience

Senior Product Designer, Account & Payments @ Kaizen Gaming

Feb 2025
to
Present
Leading design across Payments within the Accounts & Payments design team, shaping multi-market flows and supporting regulatory alignment. Partnering with Product, Compliance, and Engineering to balance UX quality with legal and technical constraints.
  • Owned end-to-end UX for complex Payments initiatives across markets, adapting flows to local compliance and PSP constraints while maintaining a coherent global pattern language;
  • Led work on high-complexity management spaces such as Card Management and Bank Management, with recognized architectural thinking beyond feature-level execution;
  • Built and maintained a Payments Knowledge Hub in Confluence to document flows, terminology, decision logic, and edge cases, creating a shared source of truth and reducing repeated clarification cycles;
  • Contributed to the evolution of design-system structure, naming, traceability, and theming foundations, including audit tooling that improved governance and scalability across product areas;
  • Supported measurable business impact across Payments, including deposit conversion gains, reduced time-to-deposit, stronger withdrawal performance, improved instant-withdrawal efficiency, and lower payment-related contactability.

Lead Product Designer @ Medlify

March 2023
to
November 2024
Led UX systems for modular healthcare platforms, including Versalie™ by Kenvue (formerly Johnson & Johnson Consumer Inc.), a menopause support and education platform serving 1.3M+ U.S. users annually. Focused on regulatory compliance, product flexibility, and operational scalability across multiple clients.
  • Built and scaled a white-label design system across 4+ products, improving delivery speed by 57% and reducing design errors by 60%;
  • Led end-to-end UX design for consumer and enterprise healthcare platforms, aligning with C-level strategy and regulatory requirements;
  • Contributed to Versalie™ design system, supporting menopause education, curated product shopping, and access to trained specialists.

Lead Product Designer @ Talka.ai

November 2021
to
December 2022
Designed and launched Talka.ai — an AI-driven platform for communication insights — from 0 to 1. Led the UX direction and product foundations in a fast-moving startup, aligning continuous discovery with engineering and AI research.
  • Led UX strategy and design architecture for Talka.ai’s first product version, aligning vision with technical feasibility in a fast-paced AI startup;
  • Collaborated with AI specialists to turn behavioral insights into functional, human-centered interfaces;
  • Embedded lean research into rapid iteration cycles, contributing to Talka.ai’s inclusion in CB Insights’ Jan 2023 AI 100 list.

References

Felipe Accorsi

Managed Lui direclty
@
BV Bank

Lui was part of one of my teams where she played a great role in the bank's main product. She was always very curious, close and connected with the team, she was always looking for solutions and the best way to design and defend her points of view.

Her great qualifications are linked to UX and UI design, motion design, organization of complex contexts, among others. Always happy and with a smile on her face, she infects the team with a good culture of sharing. I would like to have her on my team again.

— Written on a recommendation letter

Rafael Mathias

Managed Lui direclty
@
Shell Brazil / Raízen

As a Product Designer, she was able to analyze the journey of gas station users and propose solutions to improve the customer fueling experience here in Brazil, showing seniority through all stages of the project. She also created data monitoring panels and a performance monitoring tool for each of our retail partners, that were highly praised by everyone in the company.

It would be a pleasure to work again with Lui on any project.

— Written on a recommendation letter

Luiz Fernando Pilz

Managed Lui direclty
@
Mezocubo

Lui is an excellent professional, doing everything very quickly and creatively. Keeps attention to detail, widening scope possibilities, knows how to receive feedback and is very proactive. In addition to all these qualities, she is always ready to help and learn.

Certifications

Mobile UX Strategy: How to Build Successful Products

IxDF - Interaction Design Foundation
Issued
Jul 2025

Dynamic User Experience: Design and Usability

IxDF - Interaction Design Foundation
Issued
Jun 2025

Accessibility: How to Design for All

IxDF - Interaction Design Foundation
Issued
Jun 2025

Different ways of thinking make stronger teams

I do my best work in environments where people listen with curiosity, communicate clearly, and value different ways of working.

Thank you! I'll contact you soon!
Oops! Something went wrong, try again later!