Luan Vieira · Frontend Engineer

Frontend Engineer · React & TypeScript
Luan Vieira
For 8 years I've built accessible, well-tested and secure interfaces for retail, e-commerce, banking and insurance — from startups to some of Brazil's largest tech companies. Scroll down and walk the trail with me.
2016–2018
UNIPAC
Systems Analysis and Development
Where the trail began: five semesters of an associate degree.
2017–2018
CrosSoften
UI Designer
Designed websites and apps, from client requirements to build QA.
- Website and app interfaces in Figma, Adobe XD, Photoshop and Illustrator
- Gathered requirements directly with clients
- Worked alongside developers and QA'd builds before release
- Figma
- Adobe XD
- Photoshop
- Illustrator
2018–2023
Zup Innovation
Frontend Engineer
Five years building products for major banking, insurance and people-management clients.
Banking:
Internal Angular tool to track a major bank's company metrics, with Jenkins and SonarQube quality gates.
Insurance:
React insurance sales platform in an NX monorepo, with WCAG AA, Cypress end-to-end tests and the initial design system.
Growth:
Hypothesis-driven experiments to improve client performance, measured with Google Analytics.
People:
Internal platform for feedback, finance, career and people management, built on the company's design system.
- React
- Angular
- TypeScript
- Redux-Saga
- NX
- Cypress
2020–2021
Meiuca · Udemy
Courses
Items picked up along the way.
- Design System & Ops — Meiuca (2020)
- Gatsby: PWA with React, GraphQL and Netlify CMS — Udemy (2020)
- Advanced React: Next.js and GraphQL — Udemy (2021)
2023–2024
Zydon
Frontend Engineer
B2B and B2C e-commerce on a React and Next.js micro-frontend architecture.
- Core cart flows: adding, updating and removing items
- Dashboards that help sales managers refine their strategies
- Load time and responsiveness improvements for conversion
- React
- Next.js
- TypeScript
- Redux
- Material UI
2024–present
Luizalabs
Frontend Engineer
The order backoffice Magalu marketplace sellers use to invoice, dispatch and deliver.
- Three new delivery modes: ultra-fast, hyperlocal and in-store pickup
- Redesigned the financial statement, reaching 96% test coverage on the module
- Snyk remediation that brought critical and high vulnerabilities down to zero
- React
- TypeScript
- Module Federation
- Storybook
- Jest

Websites and web apps
From scratch or rebuilding what you have, fast and good-looking.
- React
- Next.js
- SEO
I want this
Mobile apps
One app for iPhone and Android from the same codebase.
- React Native
- Expo
- PWA
I want this
Figma to code
Your layout working exactly as designed, on any screen.
- Pixel perfect
- Responsive
I want this
Design system
Ready-made components to reuse across every product.
- Storybook
- Tokens
- Tests
I want this
Accessibility and modernization
I make your frontend fast, secure and usable by everyone.
- WCAG
- Performance
- Security
I want this

Let's talk

A project, a role or just an idea: reach me wherever you prefer.