William Kawai, Designer in São Paulo - State of São Paulo, Brazil
William is available for hire
Hire William

William Kawai

Verified Expert  in Design

Bio

With over eight years of experience in User Experience (UX) and three years in leadership, William has consistently demonstrated his ability to manage and develop teams in renowned companies within the tech, payments, and retail sectors. In his most recent position as a UX manager, he led a team remotely, focusing on designing and implementing UX strategies that align business needs with those of the customers to enhance performance and results.

Portfolio

Work Experience

Mobile Website Designer

2023 - 2023
PepsiCo
  • Designed 14 different dashboards for diverse contexts, tailored for mobile applications and a 6-TV panel setup in a marketing war room.
  • Adapted dashboards from a 6-monitor display setup for mobile usage.
  • Designed new customized widgets for the Sprinklr tool for each context and need.
  • Worked closely with the product manager to define dashboard components.
Technologies: Mobile Design, Agile, Information Architecture (IA), Dashboards, Data Visualization, Widgets, Data-informed Visual Design, Design Systems, Sprinklr, Web Dashboards, Component Libraries, Mobile, System Design, Print Design, Style Guides, Marketing Design, Data-heavy Design, Complex Web Systems, User Interface (UI), User Experience (UX), Wireframing, High-fidelity Prototypes, Web Design, Mobile Applications, Direct to Consumer (D2C), High-fidelity Mockups, Web Applications, B2B, Email Design, Marketing, Web UI, Mobile Apps, Design Strategy, Web Portals, iOS, Google Slides, Design Workshops, User Experience Design, User Experience Strategy, Complex Application User Interfaces (UI), Higher Education, Adobe Suite, Brochures, Stationery Design, Lean UX, Marketing Technology (MarTech), Cross-functional Collaboration, Product Videos, Video Production, Brand Guidelines, Product Launch, Multimedia, YouTube Thumbnails, Video Processing, Adobe Creative Cloud, Adobe Illustrator, Canva, Technical Reports

Product Design Manager (Remote)

2022 - 2023
CVC
  • Contributed to CVC Corp's digital transformation by spearheading the development of a new sales system successfully rolled out to over 1,000 agencies.
  • Managed a team of 20 UX professionals and three coordinators dedicated to various CVC Corp channels and platforms, including physical stores, websites, and apps.
  • Led research and exploration of current digital experiences to provide a seamless, frictionless customer experience by fixing over 150 usability debts in 2021.
  • Ensured best practices for standardization and consistency across the company's 12+ products through the design system.
  • Established a task tracking and process using Jira, improving collaboration across 8+ product designer workstreams.
  • Promoted the company's first 'Designathon,' raising possible solutions for critical problems of the experience evaluated by senior leadership.
  • Fostered a collaborative relationship with the product management team, leading the process to develop a shared product vision and define user experience and objectives.
  • Organized meet-ups and workshops for knowledge sharing, internal engagement, and training.
  • Championed a customer-centric culture across over 23 digital product, technology, and business teams, ensuring visibility of impact on priorities.
  • Created succinct business cases and executive summaries for defining and describing the scope, objectives, and key deliverables of the area.
Technologies: Figma, User Flows, Maze, InVision App, Usability Testing, Remote Usability Testing, UXCam, Adobe After Effects, Hotjar, App UI, App UX, Web App UX, App Design, Animated Prototypes, High-end Design, Atlassian Suite, User Research, Design Systems, Microinteraction Design, UX Prototyping, UI Prototyping, Mobile Prototypes, UI Design, Visual Design, Branding, Jira, Microsoft Teams, Miro, Product Design, Responsive Web Apps, Web App UI, Data Visualization, UX Design, Mobile App Design, Mobile Design, Design Leadership, User-centered Design (UCD), Design Guidelines, iOS, Android, Dashboards, User Onboarding, Web App Design, Layout Design, MVP Design, Gamification, SaaS, Digital Marketing Design, Low-fidelity Prototypes, Landing Pages, Responsive Web Design (RWD), Usability, HTML, Interaction Design (IxD), Brand Identity, Logo Design, Typography, Brand Design, Desktop App Design, SaaS Design, Mobile UI, Discovery Workshops, Webflow, Software as a Service (SaaS), Web, Hospitality, B2C, Information Architecture (IA), Agile, Data-informed Visual Design, Widgets, Prototyping, User Personas, User Stories, Atomic Design, UI Components, Consumer Products, Websites, User Testing, Accessibility, Qualitative Research, Quantitative Research, UX Research, Quantitative User Research, User Validation, Storytelling, Mobile UX Design, Dashboard Design, Mobile UI Design, Product Management, Material UI, Mockups, Color Palettes, Product Detail Pages, Microcopy, Web Dashboards, Component Libraries, Mobile, System Design, Print Design, Style Guides, Marketing Design, Complex Web Systems, User Interface (UI), User Experience (UX), Wireframing, High-fidelity Prototypes, Web Design, Mobile Applications, Direct to Consumer (D2C), High-fidelity Mockups, Web Applications, B2B, Point of Sale, Email Design, Marketing, Motion Design, Web UI, Mobile Apps, UX Strategy, CX Strategy, Design Strategy, Web Portals, Google Slides, Service Design, Design Workshops, User Experience Design, User Experience Strategy, Complex Application User Interfaces (UI), Higher Education, Adobe Suite, Brochures, Stationery Design, Lean UX, Marketing Technology (MarTech), Cross-functional Collaboration, Product Videos, Video Production, Brand Guidelines, Product Launch, Multimedia, YouTube Thumbnails, Video Processing, Adobe Creative Cloud, Adobe Illustrator, Canva, Technical Reports

Product Design Coordinator (Remote)

2021 - 2022
CVC
  • Managed, as coordinator, one of the UX fronts at CVC Corp (mobile B2C apps).
  • Defined and supported UX processes and trained and guided product designers.
  • Monitored tasks, ensuring the quality and timing of deliverables.
  • Unblocked potential obstacles and supported prioritization.
  • Aligned and tracked goals and objectives with PMs, tech leads, and business representatives.
Technologies: Figma, Atlassian, Adobe Creative Suite, UX Design, UI Design, App UX, App Design, User Research, Usability Testing, Guerilla Usability Testing, Card Sorting, Animated Prototypes, UX Wireframes, Mobile Prototypes, Mobile App UI, Web UX Design, Web UI Design, Visual Design, Branding, Jira, Microsoft Teams, Miro, Product Design, Responsive Web Apps, Web App UI, Data Visualization, Mobile App Design, Mobile Design, Design Leadership, User-centered Design (UCD), Design Guidelines, iOS, Android, Dashboards, User Onboarding, Web App Design, Web App UX, Layout Design, Mobile First, MVP Design, SaaS, Digital Marketing Design, Low-fidelity Prototypes, Landing Pages, Responsive Web Design (RWD), Usability, HTML, Interaction Design (IxD), Brand Identity, Logo Design, Typography, Brand Design, Desktop App Design, SaaS Design, Mobile UI, Discovery Workshops, Webflow, Software as a Service (SaaS), Web, Hospitality, B2C, Information Architecture (IA), Agile, Data-informed Visual Design, Widgets, Prototyping, User Personas, User Stories, Atomic Design, UI Components, Consumer Products, Websites, User Testing, Accessibility, Qualitative Research, Quantitative Research, UX Research, Quantitative User Research, User Validation, Storytelling, Mobile UX Design, Dashboard Design, Mobile UI Design, Product Management, Material UI, Mockups, Color Palettes, Product Detail Pages, Microcopy, Web Dashboards, Component Libraries, Mobile, System Design, Print Design, Style Guides, Marketing Design, Complex Web Systems, User Interface (UI), User Experience (UX), Wireframing, High-fidelity Prototypes, Web Design, Mobile Applications, Direct to Consumer (D2C), High-fidelity Mockups, Web Applications, B2B, Point of Sale, Email Design, Marketing, Motion Design, Web UI, Mobile Apps, UX Strategy, CX Strategy, Design Strategy, Web Portals, Google Slides, Service Design, Design Workshops, User Experience Design, User Experience Strategy, Complex Application User Interfaces (UI), Higher Education, Adobe Suite, Brochures, Stationery Design, Lean UX, Marketing Technology (MarTech), Cross-functional Collaboration, Product Videos, Video Production, Brand Guidelines, Product Launch, Multimedia, YouTube Thumbnails, Video Processing, Adobe Creative Cloud, Adobe Illustrator, Canva, Technical Reports

Product Design Lead

2019 - 2021
Cielo Brazil
  • Ensured consistency in the app experience, integrating with other company products (e.g. sales, promotions and partnerships, and customer service).
  • Contributed to the implementation of the design system.
  • Validated the accuracy of deliverables by gathering qualitative and quantitative data, and conducting user interviews, usability tests, and focus groups.
  • Prototyped a range of solutions for payments in websites and apps.
  • Designed and documented user interfaces for payment solutions.
  • Designed survey testing to determine feature/function fit and guerilla user tests.
  • Collaborated in the application and evolution of the design system to ensure a consistent digital experience.
Technologies: Figma, User Flows, Maze, InVision App, Adobe Experience Design (XD), Usability Testing, Remote Usability Testing, Hotjar, App UI, App UX, UXCam, Adobe After Effects, App Design, Animated Prototypes, High-end Design, Atlassian Suite, User Research, Design Systems, Microinteraction Design, ProtoPie, UX Prototyping, UI Prototyping, Mobile Prototypes, UI Design, Visual Design, Branding, Jira, Microsoft Teams, Miro, Product Design, Responsive Web Apps, Web App UI, Data Visualization, UX Design, Mobile App Design, Mobile Design, Design Leadership, User-centered Design (UCD), Design Guidelines, iOS, Android, Dashboards, User Onboarding, Web App Design, Web App UX, Layout Design, Mobile First, MVP Design, Gamification, Landing Page Design, Digital Marketing Design, Low-fidelity Prototypes, Landing Pages, Responsive Web Design (RWD), Usability, HTML, Interaction Design (IxD), Brand Identity, Logo Design, Typography, Brand Design, SaaS, Mobile UI, Discovery Workshops, Webflow, Web, B2C, Information Architecture (IA), Agile, Data-informed Visual Design, Widgets, Prototyping, User Personas, User Stories, Atomic Design, UI Components, Consumer Products, Websites, User Testing, Accessibility, Digital Banking, Qualitative Research, Quantitative Research, UX Research, Quantitative User Research, User Validation, Storytelling, Mobile UX Design, Dashboard Design, Mobile UI Design, Product Management, Material UI, Mockups, Color Palettes, Product Detail Pages, Microcopy, Web Dashboards, Component Libraries, Mobile, System Design, Print Design, Style Guides, Marketing Design, Complex Web Systems, User Interface (UI), User Experience (UX), Wireframing, High-fidelity Prototypes, Web Design, Mobile Applications, Direct to Consumer (D2C), High-fidelity Mockups, Web Applications, B2B, Point of Sale, Adobe Photoshop, Email Design, Graphic Design, Marketing, Social Media, Social Media Design, Photo Editors, Motion Design, Video Editing, Web UI, Mobile Apps, UX Strategy, CX Strategy, Design Strategy, Web Portals, Google Slides, Service Design, Design Workshops, User Experience Design, User Experience Strategy, Complex Application User Interfaces (UI), Higher Education, Adobe Suite, Stationery Design, Lean UX, Marketing Technology (MarTech), Cross-functional Collaboration, Product Videos, Video Production, Brand Guidelines, Product Launch, Multimedia, YouTube Thumbnails, Video Processing, Adobe Creative Cloud, Adobe Illustrator, Canva, Technical Reports

UX Designer

2018 - 2019
VIA
  • Developed wireframes from research, processes of empathy, and ideation.
  • Created cutting-edge Interfaces from wireframe, guided by brand visual guidelines.
  • Organized workshops for customer journey mapping, card sorting, and information architecture.
  • Tested usability tests for prototypes and feature validations.
  • Designed components and visual guidelines for the initial version of Casas Bahia's design system for future visual elements and code componentization.
Technologies: Adobe Creative Suite, Figma, Adobe Experience Design (XD), Maze, User Flows, Usability Testing, App UI, UX Wireframes, Animated Prototypes, UX Prototyping, Mobile Prototypes, Art Direction, Adobe After Effects, Atlassian Suite, Visual Design, InVision App, InVision, UI Design, Branding, Jira, Microsoft Teams, Miro, Product Design, Responsive Web Apps, Web App UI, Data Visualization, UX Design, Mobile App Design, Mobile Design, User-centered Design (UCD), Design Guidelines, iOS, Android, Dashboards, User Onboarding, Web App Design, Web App UX, Layout Design, Mobile First, MVP Design, Gamification, Landing Page Design, Digital Marketing Design, Low-fidelity Prototypes, Landing Pages, Responsive Web Design (RWD), Usability, HTML, Interaction Design (IxD), Brand Identity, Logo Design, Typography, Brand Design, SaaS, Mobile UI, Discovery Workshops, Webflow, Web, B2C, Information Architecture (IA), Agile, Data-informed Visual Design, Widgets, Prototyping, User Personas, User Stories, UI Components, Consumer Products, Websites, User Testing, Accessibility, User Research, Qualitative Research, Quantitative Research, UX Research, Quantitative User Research, User Validation, Storytelling, Mobile UX Design, Dashboard Design, Mobile UI Design, Material UI, Mockups, Color Palettes, Product Detail Pages, Microcopy, Component Libraries, Mobile, System Design, Print Design, Style Guides, Marketing Design, User Interface (UI), User Experience (UX), Wireframing, High-fidelity Prototypes, Web Design, Mobile Applications, Direct to Consumer (D2C), High-fidelity Mockups, Web Applications, B2B, Adobe Photoshop, Email Design, Graphic Design, Marketing, Social Media, Social Media Design, Photo Editors, Motion Design, Video Editing, Web UI, Mobile Apps, CX Strategy, Design Strategy, App Design, Web Portals, Google Slides, Design Workshops, User Experience Design, User Experience Strategy, Complex Application User Interfaces (UI), Higher Education, Adobe Suite, Stationery Design, Lean UX, Marketing Technology (MarTech), Cross-functional Collaboration, Product Videos, Video Production, Brand Guidelines, Product Launch, Multimedia, YouTube Thumbnails, Video Processing, Adobe Creative Cloud, Adobe Illustrator, Canva, Technical Reports

UX Designer

2015 - 2018
Extra
  • Performed web design for extra.com.br. (art direction, motion graphics, web banners, HTML, and CSS).
  • Designed landing pages and KVs for promotional campaigns such as Black Friday.
  • Worked on web design, art direction, landing page, and campaign design.
Technologies: Adobe Creative Suite, Web Design, HTML5, CSS, Motion Graphics, Banner Ads, UI Design, Figma, Visual Design, Branding, Jira, Microsoft Teams, Miro, Product Design, Responsive Web Apps, Web App UI, Data Visualization, UX Design, Mobile App Design, Mobile Design, User-centered Design (UCD), Design Guidelines, Android, Dashboards, User Onboarding, Web App Design, Web App UX, Layout Design, MVP Design, Gamification, Landing Page Design, Digital Marketing Design, Low-fidelity Prototypes, Landing Pages, Responsive Web Design (RWD), Usability, HTML, Interaction Design (IxD), Brand Identity, Logo Design, Brand Design, Mobile UI, Discovery Workshops, Webflow, Web, B2C, Information Architecture (IA), Agile, Data-informed Visual Design, Widgets, Prototyping, User Personas, User Stories, UI Components, Consumer Products, Websites, Usability Testing, User Testing, Accessibility, User Research, Qualitative Research, Quantitative Research, UX Research, Quantitative User Research, User Validation, Storytelling, Mobile UX Design, Mobile UI Design, Material UI, Mockups, Color Palettes, Product Detail Pages, Microcopy, Mobile, System Design, Print Design, Style Guides, Marketing Design, User Interface (UI), User Experience (UX), Wireframing, High-fidelity Prototypes, Mobile Applications, Direct to Consumer (D2C), High-fidelity Mockups, Web Applications, B2B, Adobe Photoshop, Email Design, Graphic Design, Marketing, Social Media, Social Media Design, Photo Editors, Motion Design, Video Editing, Web UI, Mobile Apps, Design Strategy, App Design, Web Portals, iOS, Google Slides, Design Workshops, User Experience Design, User Experience Strategy, Complex Application User Interfaces (UI), Adobe Suite, Stationery Design, Lean UX, Marketing Technology (MarTech), Cross-functional Collaboration, Product Videos, Video Production, Brand Guidelines, Product Launch, Multimedia, YouTube Thumbnails, Video Processing, Adobe Creative Cloud, Adobe Illustrator, Canva, Technical Reports
2013 - 2016

Bachelor's Degree in Graphic Design

Anhembi Morumbi University - Brazil

NOVEMBER 2020 - PRESENT

Service Design Experience

Echos Innovation Lab

OCTOBER 2018 - PRESENT

UX Weekend

Mergo UX School

FEBRUARY 2018 - PRESENT

Workshop UX Research

Mergo UX School

Tools

Adobe Creative Suite, Figma, Adobe Experience Design (XD), Adobe Photoshop, Adobe Illustrator, Adobe InDesign, Canva, Adobe After Effects, Miro, Photo Editors, Google Slides, Jira, Atlassian Suite, Maze, InVision App, InVision, Hotjar, UXCam, ProtoPie, Atlassian

Platforms

iOS, Android, Web, Mobile, Adobe Suite, Useberry, WordPress, Webflow

Languages

HTML, HTML5, CSS

Industry Expertise

Banking & Finance, Hospitality, Consumer Products, Insurance, Marketing, Social Networking, Automotive

Other

UX Design, UX Research, Usability Testing, Web UI, High-fidelity Prototypes, Wireframing, Visual Design, Information Architecture (IA), Web Design, UI Design, eCommerce UX, User Interviews, Mobile Prototypes, User Flows, Mobile App UI, User Experience (UX), User Interface (UI), eCommerce, Gaming, App Design, Mobile UX Design, Mobile UI Design, Design Systems, eCommerce UI, UI Branding, Product Design, Web App Design, Prototyping, User Research, UI Prototyping, Web App UX, Websites, Responsive Web Apps, Branding, Web App UI, Data Visualization, Mobile App Design, Mobile Design, Design Leadership, User-centered Design (UCD), Design Guidelines, Dashboards, User Onboarding, Layout Design, Mobile First, MVP Design, SaaS, Landing Page Design, Digital Marketing Design, Low-fidelity Prototypes, Landing Pages, Responsive Web Design (RWD), Usability, Interaction Design (IxD), Brand Identity, Logo Design, Typography, Brand Design, Mobile UI, Dashboard Design, B2B, Discovery Workshops, Software as a Service (SaaS), B2C, Artificial Intelligence (AI), Agile, Data-informed Visual Design, Widgets, User Personas, User Stories, UI Components, Brand Books, User Testing, Game Design, Qualitative Research, Quantitative Research, Quantitative User Research, User Validation, Storytelling, Material UI, Mockups, Color Palettes, Product Detail Pages, Component Libraries, System Design, Print Design, Marketing Design, Data-heavy Design, Complex Web Systems, Mobile Applications, Direct to Consumer (D2C), High-fidelity Mockups, Web Applications, Point of Sale, Email Design, Graphic Design, Social Media, Social Media Design, Video Editing, Videos, Mobile Apps, UX Strategy, CX Strategy, Design Strategy, Web Portals, Design Workshops, User Experience Design, User Experience Strategy, Complex Application User Interfaces (UI), Higher Education, Stationery Design, Lean UX, Marketing Technology (MarTech), Cross-functional Collaboration, Product Videos, Video Production, Brand Guidelines, Product Launch, Multimedia, Product Branding, YouTube Thumbnails, Video Processing, Adobe Creative Cloud, Technical Reports, App UI, UI Motion, Microinteraction Design, Layout, Task Flows, Responsive UI, Guerilla Usability Testing, Remote Usability Testing, Workshop Facilitation, Paper Prototyping, User Journey Maps, Design Thinking, Jobs to be Done (JTBD), Service Design, Style Guides, Native Mobile Apps, Mobile UX, Web UX, Desktop Web Design, Web UX Design, Web UI Design, eCommerce Design, UI Style Guides, Microsoft Teams, Fintech, Mobile Banking, Financial Design, Annotated Wireframes, Banner Ads, Gamification, Desktop App Design, SaaS Design, ChatGPT, Atomic Design, Accessibility, Digital Banking, Product Management, Microcopy, Web Dashboards, Motion Design, Brochures, Signage, Motion Graphics, Art Direction, Service Blueprints, Customer Experience, Bank Transactions, Financial Services, Checkout, Online Shopping, App Promotion, UX Wireframes, Animated Prototypes, UX Prototyping, App UX, High-end Design, Card Sorting, Responsive Layout, Information Design, Web Analytics, Blockchain, Non-fungible Tokens (NFT), React, Sprinklr, Animation

Experience

  • UI Design - 9 years
  • Prototyping - 9 years
  • User Experience (UX) - 9 years
  • Figma - 9 years
  • Visual Design - 8 years
  • Usability Testing - 7 years
  • Style Guides - 3 years
  • App UI - 2 years

Tools

  • Figma
Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

1

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring