Leonardo Ribeiro

Leonardo Ribeiro

Senior Product Designer. Specialist in complex SaaS, design systems, and data-heavy interfaces.

Currently based in Brazil

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English, Portuguese, French

EN, PT, FR

LinkedIn

About

I'm a Brazilian senior product designer with over six years on complex B2B software: the kind people sit inside for eight hours, where a bad decision costs someone their afternoon rather than a bounce.

Most recently I was the sole designer on a renewable energy monitoring and analytics platform, working remotely with stakeholders across Europe, the USA and Latin America. Being the only designer meant owning the whole line: discovery, interface, the design system, and validating every ticket against its design intent before release.

Before that I designed port operations software, a global gaming platform, and consumer and e-commerce products, mostly on distributed international teams. My background is in Information Systems, which is why I design with the data model and the engineering constraint in the room rather than around them. Available now for full-time or contract work, fully remote.

Tools

Design & Systems

Figma

Storybook

Design tokens

Prototyping

Framer

Maze

HTML/CSS

Delivery

Jira

Confluence

GitHub

Portfolio

Grain recipe app interface on a mobile phone

GBM Tech & Control

Product Designer on a port operations platform, leading two designers. Field research with terminal operators, and the design system that still runs underneath the work.

GBM Tech & Control

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2024/2025

Fieldnote voice notes app on a mobile phone

Delfos Energy

Senior Product Designer on a renewable energy monitoring platform. Sole designer, owner of the design system, and the person who built the design practice inside the company.

Delfos Energy

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2025/2026

Northbound banking app interface on a mobile phone

Quayside

A mobile app for container yard checkers: one job queue, damage evidence in the walkaround, and a coordinator who finally sees what the field sees.

Quayside

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2024

Pulse health tracking app on a mobile phone

Verdict - Evaluation for AI Agents

An evaluation tool for teams shipping AI agents, built around a hard problem: the agent doesn't crash when it's wrong, it returns a confident, well-written wrong answer with a 200 OK.

Verdict

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2025

Fernweh travel planning app on a mobile phone

Relay

A well-being companion for elders living with early cognitive decline, one gentle screen at a time, with family close but never watching over their shoulder.

Relay

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2025

Lockstep fitness challenge app visual

Tessel - Design System

A white-label design system that gives multiple products and clients a shared foundation. Consistent where it matters, flexible where it counts.

Tessel

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2024

Education & Certifications

Bachelor of Information Systems

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Universidade Santa Cecília

Jun 2025

Bachelor of Information Systems

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Universidade Santa Cecília

Jun 2025

Google UX Design Certificate

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Coursera

2024

Google UX Design Certificate

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Coursera

2024

Enterprise Design Thinking Co-Creator

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IBM Design Thinking

2022

Enterprise Design Thinking Practitioner

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IBM Design Thinking


2022

Work History

Delfos Energy

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Senior Product Designer

Nov 2025

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Aug 2026

Sole designer on a renewable energy monitoring and analytics platform, working directly with stakeholders across Europe, the USA and Latin America.

Set design direction and visual standards across the core product, and validated every ticket against its design intent before release.

Owned the design system end to end (tokens, component library and live documentation) keeping multiple product teams consistent without a dedicated systems team.

Delfos Energy

Senior Product Designer

Nov 2025

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Aug 2026

Sole designer on a renewable energy monitoring and analytics platform, working directly with stakeholders across Europe, the USA and Latin America.

Set design direction and visual standards across the core product, and validated every ticket against its design intent before release.

Owned the design system end to end (tokens, component library and live documentation) keeping multiple product teams consistent without a dedicated systems team.

GBM Tech & Control

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Product Designer

Nov 2024

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Dec 2025

Owned design for a port management system, reshaping the core workflows terminal operators and logistics teams run every shift.

Ran in-context usability research with terminal operators, turning observed friction into a prioritised set of UX decisions rather than a research deck.

Partnered with product and engineering through a digital transformation programme, aligning user flows with operational targets.

GBM Tech & Control

Product Designer

Nov 2024

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Dec 2025

Owned design for a port management system, reshaping the core workflows terminal operators and logistics teams run every shift.

Ran in-context usability research with terminal operators, turning observed friction into a prioritised set of UX decisions rather than a research deck.

Partnered with product and engineering through a digital transformation programme, aligning user flows with operational targets.

Rivalry

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Product Designer

Nov 2023

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Nov 2024

Led the redesign of core mobile experiences on a global B2C gaming platform, including the homepage and primary navigation: average session time up 23% in the first month.

Removed friction across the mobile interface through iterative usability reviews, lifting task completion rates on the platform's highest-traffic flows.

Worked with data and product teams on behavioural clustering to target experiments, measuring impact through CSAT and CHS rather than launch volume.

Rivalry

Product Designer

Nov 2023

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Nov 2024

Led the redesign of core mobile experiences on a global B2C gaming platform, including the homepage and primary navigation: average session time up 23% in the first month.

Removed friction across the mobile interface through iterative usability reviews, lifting task completion rates on the platform's highest-traffic flows.

Worked with data and product teams on behavioural clustering to target experiments, measuring impact through CSAT and CHS rather than launch volume.

Corsi

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Product Designer

Jun 2021

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Nov 2024

Ran an independent studio combining branding, UX/UI and front-end delivery for clients in SaaS and digital services.

Led end-to-end product design for clients including Valary, a US SaaS startup in project management and team productivity.

Owned the full engagement alongside the design work (scoping, stakeholder alignment and strategic consulting) for web and mobile products.

Corsi

Product Designer

Jun 2021

-

Nov 2024

Ran an independent studio combining branding, UX/UI and front-end delivery for clients in SaaS and digital services.

Led end-to-end product design for clients including Valary, a US SaaS startup in project management and team productivity.

Owned the full engagement alongside the design work (scoping, stakeholder alignment and strategic consulting) for web and mobile products.

YOUDevelop

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Product Designer

Jun 2021

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Nov 2023

Redesigned an e-commerce platform interface: conversion up 18% and cart abandonment down 10%.

Designed Pupz, a GPS pet-tracking app. Customer satisfaction up 35% and the user base up 20% within three months of release.

Delivered full-cycle UX across web and mobile for clients in pet tech, e-commerce and creator businesses, from stakeholder alignment through post-launch iteration.

YOUDevelop

Product Designer

Jun 2021

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Nov 2023

Redesigned an e-commerce platform interface: conversion up 18% and cart abandonment down 10%.

Designed Pupz, a GPS pet-tracking app. Customer satisfaction up 35% and the user base up 20% within three months of release.

Delivered full-cycle UX across web and mobile for clients in pet tech, e-commerce and creator businesses, from stakeholder alignment through post-launch iteration.

Personal Tech

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Product Designer

Jan 2021

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May 2021

Designed a physical activity tracking dashboard that raised engagement 22% in its first two months.

Removed friction across the mobile interface through iterative usability reviews, lifting task completion rates on the platform's highest-traffic flows.

Worked the full product cycle from ideation through post-launch metric analysis, producing both low- and high-fidelity prototypes.

Personal Tech

Product Designer

Jan 2021

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May 2021

Designed a physical activity tracking dashboard that raised engagement 22% in its first two months.

Removed friction across the mobile interface through iterative usability reviews, lifting task completion rates on the platform's highest-traffic flows.

Worked the full product cycle from ideation through post-launch metric analysis, producing both low- and high-fidelity prototypes.