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Work experience

Clipboard Health

Oct 2024 - Present

Lead Product Designer

Product design and direction for new ventures: Maple, Arca, Logcare and Taryn

• Direct product and design across up to 6 products in parallel, leading a cross-functional team of up to 15 designers and engineers and working directly with the CEO on vision, MVP scope and execution.
• Built a shared design system (tokens, components and patterns for web and mobile) used across the team's products, so interfaces and features move from one product to another with little rework; the team chat runs on it too.

• Designed SmartOps for Arca, an AI copilot that cuts a scheduler's work on each staff call-off from 1–2 hours of phone calls to a few minutes, by ranking who can cover without overtime and messaging them all at once.

• Designed Apply Master Schedule Changes for Maple, one of the platform's most complex features: updating a worker's recurring schedule across 2 months of published schedules went from about 1,000 clicks to 3.

• Designed Ops Agent, an AI agent that watched every Maple schedule for overtime, cost-control rules and staffing targets, and redesigned Maple's scheduling experience and its entire Worker App.

• Took Arca from first commit to a 4-module product in 6 months with a team of 3, and wrote 36% of its 3,704 commits in Next.js, React and TypeScript with AI coding agents (Claude Code).

Mosaic

Apr 2022 - Jul 2024

Senior Product Designer

Resource management SaaS

• Designed and implemented the Tile design system, raising engineering efficiency by 30%.
• Worked with the VP of Technology on the tech vision, product design roadmap and staffing strategy.

• Explored AI features for Mosaic Hub, including chatbots and image recognition, and took part in an AI hackathon.

• Co-led the redesign of Mosaic Hub with the Design Manager, raising company-wide feature adoption by 21%.

• Redesigned the style guide for construction documents used across the organization, improving consistency by 70%.

• Designed and coded the company website in React, TypeScript and Tailwind CSS, saving 100+ engineering hours.

ioasys

Dec 2020 - Mar 2022

Lead Product Designer

Allocated to Saúde iD, Grupo Fleury's digital health platform

• Led the Consultório ID project at Saúde iD, increasing daily appointments by 200%.
• Redesigned the full product in under 2 weeks as a proof of concept for board approval.

• Led Saúde iD's design system team, setting the standards used across its products.

ioasys

Aug 2020 - Dec 2020

Senior Product Designer

• Designed features for TM1's online events platform, used by Netflix, Amazon Prime Video, Disney, Meta and TikTok to reach 1M+ viewers.
• Designed a timeline view that cut estimated engineering effort from 16 hours to 4.

Salt Digital Agency

Apr 2020 - Sep 2020

UI/UX and Brand Designer

• Introduced a design-to-development handoff process that reduced rework, and built websites and portals for 30+ businesses.

Kick! EdTech

Jul 2019 - Apr 2020

UI/UX Designer and Front-end Developer

• Designed and coded a learning platform for young entrepreneurs; gamification raised engagement and learning outcomes by 20%.

Six Agency

Dec 2017 - Dec 2018

UI/UX Designer and Front-end Developer

• Designed and coded the front end of a SaaS platform for training football players, plus responsive websites.

GDAi Studios, Apple iOS Developer University Program

Jan 2011 - Jun 2012

UI Designer

• Designed iOS app interfaces for games, company portals and healthcare apps.

What people say about working with me

“I can say unequivocally that Gui has a mastery of how to create modern, eye catching web interfaces, and also that Gui is both creative and gritty enough to solve any problem that get in his way, particularly when it came to writing code himself.”

Max LeisersonVP of Technology at Mosaic

“Gui (Guilherme) is one of the most incredible UI/visual designers I have worked with in my career thus far. With this understanding of how design meets function, Gui can be your go to person when it comes to designing unique, beautiful and functional web/mobile applications.”

Salina KhathaDesign Manager

“As a Jr. Designer, I looked up to Gui and his abilities all the time! He has a gift of elevating platforms and their visual quality through his designs. He has an high attention to detail as a designer, which shows in his designs and his documentation.”

Joel NeviusProduct Designer