MatiCastro

Fullstack developer · 5+ years · San Juan, Argentina

I'm 22 and I build modern web applications, custom systems and automation, combining frontend, backend and AI integrations to solve real business problems.

See the workGet in touchDownload CV
The cube in the background solves itself as you scroll.
Next.jsNestJSAngularPostgreSQLTypeScriptVue.jsPHPWordPressOpenAIDockerGitHub ActionsPrismaTailwindAWSNext.jsNestJSAngularPostgreSQLTypeScriptVue.jsPHPWordPressOpenAIDockerGitHub ActionsPrismaTailwindAWS

Projects

A selection of my own projects and of the work I have developed for clients and institutions.

_01

rata

An app that finds discounts near you. It scrapes Instagram, shop sites and deal pages, and places them on a map based on where you are.

Next.js · NestJS · PostgreSQL · Scraping
Own project2026
_02

amigo

An app to help street animals: it channels donations to charitable causes and lets you pin a lost dog on the map so people nearby can see it.

Next.js · NestJS · PostgreSQL · Maps
Own project2026
_03

Democracy Tracker

An international institutional-impact project I contributed to as a developer.

Next.js · NestJS
Client2024
_04

Internal SaaS platforms

Admin dashboards, client portals and financial modules, designed and implemented end to end for enterprise management.

Next.js · NestJS · PostgreSQL · Docker
Client2021 — now
_05

AI integrations

AI-assisted generators inside proposal and customer-service workflows, using the OpenAI API.

OpenAI · Node.js · TypeScript
Client2023 — now
_06

Government management systems

Web systems and REST APIs in PHP for San Juan's Provincial Department of Informatics, plus modernisation of legacy applications.

Vue.js · PHP · PostgreSQL
Government2022 — 2023

Where I come from

I started with simple websites and today I build custom systems and artificial intelligence integrations.

Pawn

I started building PHP and WordPress sites for shops in San Juan: forms, catalogues and simple management systems.

Queen

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.

Continuous learning
I like staying current, especially in artificial intelligence. When a new tool appears, I try it.
Software with a purpose
I believe many social problems can be solved with software. The amigo application came out of that idea.

Experience

2025 — now

University lecturer

Universidad Católica de Cuyo

I teach in the final year of the Software Development programme.

2023 — now

Fullstack Developer

Ioonic Sistemas

REST 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.

AngularNestJSPostgreSQLMongoDBWordPress
2022 — 2023

Frontend Developer

Provincial Department of Informatics, San Juan

Scalable web systems with Vue.js, JavaScript and PHP, REST APIs for government management, and modernisation of legacy applications.

Vue.jsPHPPostgreSQL

Education

2022 — 2024

Associate Degree in Software Development

Universidad Católica de Cuyo

Completed. San Juan, Argentina.

Matias Castro
Download CV

Technologies

The technologies I work with, grouped by area.

Frontend
Next.jsAngularReactVue.jsTypeScriptJavaScriptTailwind CSSHTML5CSS3
Backend
NestJSNode.jsExpress.jsPHPWordPress
Databases
PostgreSQLMySQLSQL ServerMongoDBPrisma ORM
DevOps
DockerGitHub ActionsCI/CDAWSNginx
AI & APIs
OpenAI APIWebSocketsREST APIsGraphQLAPI Gateway
Methods & tools
ScrumKanbanCode ReviewsTDDGitJiraFigma

Let'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.

Message sent

Thanks for writing. I will reply to the email you left, and if a call is easier for you we can arrange one.
Email
maticastrook@gmail.com
Where
San Juan, Argentina · remote
Languages
Native Spanish · technical English