01
PHP · MYSQL
Book Registration System
● READYA full CRUD application where users can create an account, log in and out, and register or delete books. Built in PHP with a MySQL database.
PHPMySQLAuth
OPEN PROJECT →Available for workParaná, Brazil · Est. 2020
LeonardoGuerini.
Full-stack developer building solid, well-structured systems from the ground up — currently studying computer science and shipping personal projects.
welcome!
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Full-stack✳JavaScript✳React✳Node.js✳APIs✳Databases✳Clean code✳Always learning✳
01 — ABOUTA bit
A bit
about me
Hi — I'm Leonardo, a full-stack developer who fell for the craft of building things that just work — from the interface down to the database.
- 2020
Started studying programming with free courses and research. I spent a lot of time on the fundamentals — I knew that was the most important thing.
- 2025
Finished my technical high school in internet computing. Since then I've learned a range of technologies, sharpened my skills, and explored what this field has to offer.
- NOW
In my first year of college and working as a junior full-stack developer — building real software for production while turning my own ideas into working projects, one commit at a time.
02 — SKILLSTools of
Tools of
the trade
JavaScriptLANG
ReactFRONT
Next.jsSSR
Node.jsRUNTIME
Express.jsAPI
MySQLDB
MongoDBDB
TailwindCSS
BootstrapCSS
GitVCS
FigmaDESIGN
03 — PROJECTS
Selected work
02 PROJECTS
MORE SOON
MORE SOON
02
JAVA · ANDROID
Currency Converter API
● READYA currency converter for Android, written in Java with Android Studio and powered by live rates from the Exchange Rate API.
JavaAndroidREST API
OPEN PROJECT →More on the way
New projects will slot right into this list.
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