Caio Viotti EU Citizen/Brazilian @ UTC-3

About me

I’m a UX Engineer with 7 years of full-time experience in Front-End Software Engineering and UI/UX Design, specialized in crafting and implementing product-driven user experiences. Proficient in modern JavaScript development and tooling, mainly with Vue, but well-acquainted with React and other frameworks. Regarded as a CSS wizard and expert at designing directly using code with pixel perfection.

Experience

Founding UX Engineer @ Zazos (Y Combinator S21)

1Y3M | 04/2023 - 07/2024
  • ⁠Managed and developed the company’s Design System from scratch, creating 20 tailored components for optimal DX/UX with Vue + StoryBook, cutting 70% of unstructured UI lib code
  • ⁠Led the platform-wide UI redesign and its Front-End refactoring, enhancing user-facing and back-office screens with consistency in UI and copy, with overwhelming client satisfaction
  • ⁠Led the Front-End refactoring and UX overhaul for the Workflow Automations of the platform’s Low-Code segment, utilizing a new node-based UI pattern, resulting in 53% increased usage
  • Led the implementation of a pseudo-viewport component for rendering 9 possible layout views of our platform while ensuring full consistency in navigation between pages using them
  • ⁠Led the UI/UX redesign and Front-End refactoring for the Low-code page components settings by using a detailed sidebar for a consistent experience, reducing usage friction by 65%
  • ⁠Led the refactoring of a visual JSON Editor for API integration within Workflow Automations

Vue, Nuxt, Vuex, StoryBook, Jest, Cypress, SCSS, Rails / Figma, Whimsical

Front-End Developer & UI/UX Designer @ Buser (Softbank)

1Y4M | 09/2021 - 13/2022
  • Led the Product Discovery and Front-End Development of a dynamic blog-like feature, yielding 60k SEO-optimized pages that elevated organic traffic from 500k to 2.5M within 10 months
  • Developed the Front-End for the redesigned UX of our checkout page, making it into a single-page flow without a sign-up requirement, resulting in a 16% increase in conversion rate
  • Optimized dozens of Design System Vue components with in-depth documentation, accessibility-based unit testing, and shrank its build size by 30% by reducing unecessary JS dependencies
  • Promoted best practices for scalable CSS across the organization, offering guidance and mentoring for all things related to styling
  • Mentored interns via classes, assignments, code reviews, and pair programming opportunities

Vue, Nuxt, Vuex, VuePress, Jest, SCSS, django / Figma, Miro

Contract Front-End Developer @ BxBlue (Y Combinator S17)

4M | 10/2020 - 02/2021
  • Led the design and implemented the UX for a WebRTC video-contract feature, lowering e-signature costs by allowing users to articulate contract terms displayed on-screen verbally

React, Styled Components, Jest, Enzyme, SCSS, Rails / Figma

Front-End Developer @ Olist (SoftBank)

3M | 13/2019 - 04/2020
  • Refactored multiple legacy client-side features into a new React-based Design System

React, Styled Components, Styled System, REBASS, DOCZ, jQuery, SCSS, Django

Front-End Developer & UI/UX Designer @ LABHacker

3Y8M | 04/2016 - 12/2019
  • Led the Product Discovery, Design Sprint, UI Design and Front-End development of a tool for citizen input on law drafts with consensus datavis + text editor for lawmakers in 7 months
  • Developed the Front-End for a public hearings pilot tool with crowd-ranking questions, having 55% adoption by the House of Representatives within 1 year, and institutionalized by 2024

ES5+, jQuery, SCSS, RSCSS, BEM, Django / Figma, Miro

Part-time Web Development Intern @ Interlegis

2Y | 13/2013 - 13/2015

Part-time Web Developer @ CJR (University of Brasilia)

1Y | 09/2013 - 09/2014