FernaandoJr

Technology enthusiast

Location

São Paulo, Brazil

Email

Local time

Tech Stack

JavaScriptTypeScriptJavaNode.jsBunReactExpoNext.jsViteVitestHonoDiscord.jsTanStackReduxTailwindshadcn/uiMUIMongoDBMySQLPostgreSQLDockerVercelGitGitHubPostmanCursorPhotoshopClaudeCodex

About

  • I'm Fernando Junior, a Full Stack Developer with 4+ years of experience building web products. Detail-obsessed. Design that works as well as it looks.
  • I work the full stack: UI, component architecture, and APIs. In production I ship TypeScript, React, and Next.js in a monorepo.
  • I keep inventing projects and actually finishing them. Components, interfaces, products. Rough idea in, something polished out.
Read my story

Projects

AstroVista
AstroVista

Open source app that explores NASA's space images and videos, archiving daily APOD images dating back to 1995.

mosaiq
mosaiq

Customizable QR code generator that runs 100% in the browser. Colors, modules, eyes, logo, PIX, and SVG/PNG/PDF download. No sign-up, no server.

See all projects

Experience

  1. May 2025 ·

    Remote, Full-time

    Developing a new AgroCRM platform using modern architecture, building a rich component library including comboboxes, date inputs, and file uploads. Working collaboratively with multiple developers in a monorepo, while also building from scratch a cross-platform mobile app with offline-first support using Expo and React Native.

    • Built reusable form components and a cross-platform mobile app with offline sync from scratch
    • Collaborated with multiple developers in a structured monorepo with MVVM architecture and strong DX practices
  2. Sep 2024 · May 2025

    Hybrid, Full-time

    Developed and maintained RESTful APIs using GeneXus, handling CRUD operations and backend optimizations in close collaboration with frontend and support teams.

    • Created and maintained CRUD operations with performance-focused optimizations
    • Worked closely with the frontend team to align API contracts and resolve integration issues
“Any fool can write code that a computer can understand. Good programmers write code that humans can understand.”
Martin Fowler