Hi, I'm Leonardo 👋

About
Senior React & Next.js Developer with 6+ years of professional experience specializing in enterprise-grade web applications. Proven track record building fintech solutions, payment processing platforms, and Banking-as-a-Service (BAAS) systems. Computer Science graduate with deep expertise in React, TypeScript, Next.js, modern state management (React Query, Redux), and performance optimization. Experienced in full-stack development with Node.js, creating scalable architectures, and implementing CI/CD pipelines. Early adopter of AI-assisted development — using Claude Code and Figma MCP in production workflows to ship faster with higher quality. Strong collaborator with fluent English communication, ready to contribute to ambitious projects worldwide.
Work Experience · 6 yrs 7 mos

Shipwell - Senior Frontend Engineer
CurrentMar 2024 - Present · Austin, Texas (Remote)

Zukese - Frontend Engineer (Freelance)
Jan 2024 - Oct 2024 · Angola (Remote)

Wine Locals - Frontend Engineer
Mar 2023 - Mar 2024 · Brazil (Remote)

Softo - Frontend Engineer
Nov 2021 - Apr 2023 · Brazil (Remote)

Whydea - Frontend Engineer
Feb 2020 - Nov 2021 · Brazil (Remote)
Education

Atitus - Bachelor's Degree in Computer Science
2020 - 2024 · 4 yrs
Published Apps

Zukese
User-facing event ticketing app for Android

Zukese
Companion app for event organizers to manage ticketing and access control

Wine Locals
Partner app for the Wine Locals marketplace, published on the App Store

Whydea
Android shopping app for a wholesale marketplace
Github Projects
A secure Flask REST API with user authentication, role-based access control, and MySQL database integration. Features user management, secure password hashing, and session management.
Project to learn Cypress on frontend
Project to test react apps
Learning NestJS concepts, using Clean Arch
Computer repair shop management app with Next.js 15 Server Actions, type-safe forms, and role-based auth
Refresh token react app
Techs
Languages
JavaScript6+ years
TypeScript6+ years
HTML/CSS6+ years
SQL1 year
FrontEnd
React/Next.JS6+ years
TailwindCSS4+ years
React Query4+ years
Redux/RTK Query4+ years
GraphQL1 year
Tools
Git/Github6+ years
Jira4+ years
Monday3+ years
Testing Tools
Jest4+ years
React Testing Library4+ years
Cypress4+ years
Playwright2+ years
Mobile
Expo/React Native3+ years
EAS3+ years
AI Tools
Claude Code2+ years
Figma MCP2+ years
GitHub Copilot3+ years
ChatGPT3+ years
Backend
NodeJS3+ years
Express3+ years
Strapi3+ years
Firebase3+ years
NestJS3+ years
Built With
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