MATEO
ORODAZ
focused on mobile apps
I build complete applications end to end: design, frontend, backend, database and security. I'm currently building Tsundoku, a manga reader with a Studio for indie artists, and Jergario, a crowdsourced Spanish slang dictionary.
Jergario
Jergario
A crowdsourced Spanish slang dictionary, with regional variants for every Latin American country and Spain.
Slang changes from country to country, and there's no Spanish-language platform that records it with regional variants and community moderation.
Website where users post definitions with the countries where they're used, vote, comment and earn reputation, with a moderation panel, admin stats and donations via Ko-fi and Mercado Pago.
React 19 + Vite and Tailwind on the frontend. Node.js with Express 5 in TypeScript and MongoDB Atlas with Mongoose. httpOnly cookie sessions, Google OAuth, email via Resend and error tracking with Sentry. Deployed on Cloudflare Pages and Render.
Race-free voting with unique indexes and atomic operations. Search that ignores accents but keeps the ñ. Automatic links between words with Unicode regex. httpOnly cookie sessions with CSRF protection, and 2FA. Security review with 19 fixes.
Live at jergario.com since November 2026, with encrypted daily backups. 637 automated API tests, all passing. Next: opening it to its first users, who add the slang from where they live; the mobile app, on the same API, comes after.
Technologies
About me
I'm a junior full stack developer focused on mobile. I like building complete, real products: I think through the user experience, build the backend and take care of security and testing. I learn by building concrete things.