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Mayara Castro

@mayaracastro98

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UX Engineer at Appmax building design tokens and component patterns for a new Design System.

Brazil

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At Appmax, I led UX design and information architecture decisions focused on conversion. I prototyped interface alternatives in Figma and built design tokens, components and interfaces with Vue 3, Nuxt and Tailwind CSS.

At Meiuca, I was technical lead on two Design System projects for financial institutions. I structured Banco BV’s design token architecture and component libraries, and built an accessible institutional landing page for Itaú.

At Warren Investimentos, I led Design System work through a platform rebrand and co-founded an accessibility guild. Earlier, as a Software Engineer and Frontend Developer there, I led a progressive Angular-to-Vue migration and expanded automated test coverage.

Experience

Work history, roles, and key accomplishments

UX Engineer – Design Systems

Appmax

Dec 2023 - Oct 2026 (2 years 10 months)

Led UX design and information architecture decisions focused on conversion, prototyped interface alternatives in Figma, and structured user flows for role-based access control. Built design tokens, components, and interfaces with Vue 3, Nuxt, and Tailwind CSS.

UX Design Information Architecture Figma Prototyping User Flows Design Tokens Vue3 Nuxt Tailwind Competitive Benchmarking Design Systems

Design System Engineer

Meiuca

Mar 2022 - Sep 2023 (1 year 6 months)

Technical lead on two Design System projects for financial institutions, structured design token architecture and component libraries for Banco BV, and documented components in Zeroheight and Storybook. Built an institutional landing page for Itaú with WCAG AA accessibility.

Design Systems Design Tokens Component Libraries Zeroheight Storybook WCAG 2.1 AA Accessibility Governance Landing Pages

Design System Engineer

Lojas Renner

Dec 2021 - Mar 2022 (3 months)

Architected a multi-brand Design System for Renner, Youcom, Camicado, and Ashua, defining design tokens and theming to customize shared components. Documented components and patterns in Zeroheight and Storybook.

Design Systems Design Tokens Theming Zeroheight Storybook Brand Consistency Component Libraries

Design System Engineer

Warren Investimentos

Dec 2020 - Dec 2021 (1 year)

Led the Design System through the investment platform's rebranding, implemented light and dark themes, and co-founded the accessibility guild integrating WCAG AA practices. Ran tests with NVDA and VoiceOver screen readers and defined adoption metrics.

Design Systems Theming Accessibility WCAG 2.1 AA Screen Readers NVDA Voice Over User Adoption Mentorship

Software Engineer and Frontend Developer

Warren Investimentos

Jan 2019 - Nov 2020 (1 year 10 months)

Developed responsive interfaces with Vue, Angular, and TypeScript, and led the progressive migration from Angular to Vue. Expanded automated test coverage to improve software reliability.

Vue.Js Angular TypeScript Responsive Design Testing Automation Migration Frontend Development