Learning by building.

Real problems, hands-on projects. Here’s what I’ve been working on.

The person behind the code

Curiosity first.
Code follows.

Celso Toledo

I like understanding how things work. Even more, I like finding a way to make them work better.

I’m a software developer and a Systems Analysis and Development student at Facens. My professional experience brought me close to real users, technical problems and opportunities to simplify everyday processes.

Today I build for the web, study React and work on an academic project with Java and MySQL. I’m growing toward fullstack development, with a particular interest in back-end.

What I work with

Web development

HTML / CSS / JavaScript

Building & learning

Java / SQL / MySQL / React

Along the way

Git / GitHub / Figma / Python

From problems to progress.

The experience that shapes the way I build.

Jun 2022 — presentProfessional experience

Assistant · Department of Education

Municipality of Cesário Lange

Supporting users and solving technical problems gave me a practical view of how technology can help people. I built an invoice registration solution with AppSheet and Google Sheets to simplify data entry and make information easier to find.

A repetitive task became a simpler process. That’s the kind of problem I enjoy solving.

Always learning

Systems Analysis & Development

Facens

2026 — expected Jul 2028

Currently deepening my knowledge of React.

Portuguese & fluent English

Open to new opportunities

Let’s build
something useful.

Have a project in mind or a place on your team? I’d love to hear about it.

Remote, hybrid or on-site · Sorocaba & São Paulo