William is available for hire
Hire WilliamWilliam Kawai
Verified Expert in Design
Designer
Location
São Paulo - State of São Paulo, Brazil
Toptal Member Since
March 12, 2021
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.
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
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
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
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
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
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
Education
2013 - 2016
Bachelor's Degree in Graphic Design
Anhembi Morumbi University - Brazil
Certifications
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
Experience
Tools
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