Lúmen Design System

From scattered UI kits to a unified design system—how we built Lúmen to scale Neon’s design.

Neon’s fragmented UI libraries slowed teams down, leading to inconsistencies and inefficiencies. What started as a side project soon became Lúmen, Neon’s first official design system.

ROLE

Product Designer

YEAR

2019

Neon is a leading digital bank in Brazil, empowering millions with accessible financial services. But while their mission was strong, their design process was not.

The team was split between Sketch and Adobe XD, using two separate UI libraries that often didn’t match. Engineers lacked clear guidelines, designers were spending more time fixing inconsistencies than designing, and collaboration between teams felt disjointed.

To scale efficiently, Neon needed a single source of truth—a structured, adaptable design system that could grow alongside the company.

Neon is a leading digital bank in Brazil, empowering millions with accessible financial services. But while their mission was strong, their design process was not.

The team was split between Sketch and Adobe XD, using two separate UI libraries that often didn’t match. Engineers lacked clear guidelines, designers were spending more time fixing inconsistencies than designing, and collaboration between teams felt disjointed.

To scale efficiently, Neon needed a single source of truth—a structured, adaptable design system that could grow alongside the company.

Our approach

To build a system that truly worked, we started by understanding the pain points. From this deep dive, we defined a clear strategy: consolidate tools, introduce a scalable component structure, and establish strong documentation.

Component Inventory

We audited 53 components to identify inconsistencies and classify elements into global vs. local components.

Team Alignment

We ran interviews with designers and engineers to understand their workflows and tool preferences.

Card Sorting Workshop

We tested how teams naturally grouped UI elements, ensuring the system aligned with how they thought.

Benchmarking Best Practices

We researched industry-leading design systems to establish solid foundations.

Solution

Inspired by Brad Frost’s Atomic Design, we restructured Neon’s UI framework into a scalable, modular system. Our structure was built using the following components:

Design Tokens

Standardized values for colors, spacing, and typography.

Base Components

Reusable UI elements, ensuring consistency.

Contextual Libraries

Tailored adaptations for different platforms and brands.

To eliminate workflow inefficiencies, we consolidated tools and migrated the team to Figma, providing a unified platform for design collaboration. This transition was carefully planned in phases, supported by clear guidelines and training sessions to ensure a smooth adoption. By simplifying workflows and establishing a single source of truth, we transformed Neon’s design process into a cohesive, scalable, and future-proof system.

IMPACT & RESULTS

A Unified Design System Built to Scale

A Unified Design System Built to Scale

By consolidating tools and streamlining workflows, we transformed Neon’s design process into a cohesive and scalable system. Designers and engineers gained clear guidelines, improved documentation, and a single source of truth, making collaboration more efficient. The improved Customer Effort Score (CES) reflected a stronger perception of accessibility and ease of use, reinforcing Lúmen’s impact on the team's productivity and Neon’s growth.

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I’m always open to new opportunities, collaborations, or just a good conversation about design and leadership.

Last update on February, 2025

CONTACT

hey@alexgambaro.com

I’m always open to new opportunities, collaborations, or just a good conversation about design and leadership.

Last update on February, 2025

CONTACT

hey@alexgambaro.com