Hi, I'm Leonardo 👋

Senior Frontend Developer | React | Next.js | TypeScript
Leonardo Primieri

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

    Shipwell - Senior Frontend Engineer

    Current

    Mar 2024 - Present · Austin, Texas (Remote)

    ReactTypeScriptVitePlaywrightReact NativeGitHub ActionsClaude CodeFigma MCP
    Zukese - Frontend Engineer (Freelance)

    Zukese - Frontend Engineer (Freelance)

    Jan 2024 - Oct 2024 · Angola (Remote)

    React NativeNext.jsTailwindCSSEAS BuildGitHub Actions
    Wine Locals - Frontend Engineer

    Wine Locals - Frontend Engineer

    Mar 2023 - Mar 2024 · Brazil (Remote)

    ReactNext.jsTypeScriptReact NativeExpoReact QueryTailwindCSSPostHog
    Softo - Frontend Engineer

    Softo - Frontend Engineer

    Nov 2021 - Apr 2023 · Brazil (Remote)

    ReactNext.jsTypeScriptBit.devCypressViteStrapiZustand
    Whydea - Frontend Engineer

    Whydea - Frontend Engineer

    Feb 2020 - Nov 2021 · Brazil (Remote)

    ReactFirebaseNode.jsExpressReact NativePostgreSQL

Education

    Atitus - Bachelor's Degree in Computer Science

    Atitus - Bachelor's Degree in Computer Science

    2020 - 2024 · 4 yrs

Published Apps

Github Projects

8total starsTypeScript · Python · HTML

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

Get in touch

Fill out the form below and I'll get back to you as soon as possible.