MatiCastro
I'm 22 and I build modern web applications, custom systems and automation, combining frontend, backend and AI integrations to solve real business problems.
Projects
A selection of my own projects and of the work I have developed for clients and institutions.
Where I come from
I started with simple websites and today I build custom systems and artificial intelligence integrations.
I started building PHP and WordPress sites for shops in San Juan: forms, catalogues and simple management systems.
Today I build platforms and custom systems, teach at university and work on artificial intelligence integrations.
How I can help
I work with direct clients and with development teams. If a project isn't the right fit, I'll say so and suggest who to talk to instead.
Automation
I automate repetitive tasks so your team gains time.
- API and webhook integration
- CI/CD deployments
- Scraping and data consolidation
Applied AI
I integrate artificial intelligence into the workflows your team already uses, not as a separate demo.
- Assisted generators
- Customer service
- Data-driven decisions
Chatbots
Assistants wired into your systems, handing over to a person when needed.
- Web and messaging
- Connected to your database
- Conversation metrics
Integrations
I connect systems that were never designed to communicate with each other.
- REST and GraphQL APIs
- WordPress ↔ SaaS
- Legacy migration
Custom web development
The complete product: frontend, backend, database and deployment.
- Next.js · Angular · Vue
- NestJS · Node · PHP
- PostgreSQL · Prisma
Technical consulting
I analyse your current system and propose an improvement plan.
- Code review
- Migration plan
- Team coaching
About me
Five years developing software for institutional and private clients across Latin America and Europe.
Experience
University lecturer
Universidad Católica de CuyoI teach in the final year of the Software Development programme.
Fullstack Developer
Ioonic SistemasREST APIs with Node, Express and TypeScript, web and mobile interfaces for enterprise applications, and OpenAI integrations for automation and data-driven decisions. Distributed team, agile methodologies.
Frontend Developer
Provincial Department of Informatics, San JuanScalable web systems with Vue.js, JavaScript and PHP, REST APIs for government management, and modernisation of legacy applications.
Education
Associate Degree in Software Development
Universidad Católica de CuyoCompleted. San Juan, Argentina.
Technologies
The technologies I work with, grouped by area.
Tip guides
View allEvery day I show a tool on TikTok and Instagram, and its step-by-step guide stays here, ready to follow on your own or with your AI.
Semgrep: revisá la seguridad de tu código con un comando
Semgrep lee todo tu proyecto y te marca claves a la vista, consultas que se pueden inyectar y comandos peligrosos, con el archivo y la línea exacta.
Cuánta gente entra a tu web con Cloudflare Web Analytics
Una herramienta gratis de Cloudflare para ver cuántas visitas tiene tu web, cuáles son las páginas más vistas y de qué país te visitan, sin cookies y sin mover tu dominio.
Probá tu API sin crear ninguna cuenta con Bruno
Un programa gratis y open source para probar tu API que guarda cada pedido como un archivo de texto en una carpeta de tu compu, sin nube ni cuenta, listo para subir a git con tu proyecto.
Learn to code from scratch
A free course, chapter by chapter: each class starts with a game without a computer and ends with a mission in Scratch. It is in Spanish.
Aprendé a programar desde cero
Le estoy enseñando a programar a mi hermano de 9 años, que nunca programó nada, y acá te dejo cada clase para que la hagas vos también. Primero jugamos sin compu, después armamos el juego en Scratch, y recién al final aprendés cómo se llama lo que hiciste.
See the courseLet's talk about your project
Write to me describing what you need and I will reply. If a call or a meeting works better for you, we can arrange that too.