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RaulEstevezA/README.md

Raúl Estévez — Software Developer focused on backend, Python, APIs, automation and developer tools

English · Español

Portfolio · Live demos · LinkedIn · Contact

I build backend services, APIs, automation tools and applications that connect systems and turn data into something useful. I care about clear architecture, practical interfaces and software that people can actually run and test.

My main focus is Python, backend development, REST APIs, data processing and developer tools. I also build cross-platform applications when the product needs a user-facing client.

Featured projects

DataCleanr

Clean, normalize and deduplicate CSV, Excel, JSON and XML data. Every proposed change can be reviewed before it is applied; files stay on the user's device.

Python · PySide6 · React · TypeScript
Try online · Desktop releases

Api2Class

Turn JSON API responses into editable models and generate typed classes for 11 languages, JSON Schema or Smithy. Processing happens locally.

Python · PySide6 · React · TypeScript
Try online · Source

ERP Flutter Integration

Public rewrite of a production mobile app I built during my DAM internship, together with most of its REST API, to connect field staff with the company's ERP. Includes authentication, six roles and permission-based workflows.

Flutter · Dart · REST · Laravel/PHP · MVVM
Live demo · Product video

Flutter Shop Admin Backend

Reproducible local API environment for a Flutter administration app, with demo data and a one-command Docker Compose setup. The repository distributes the compiled NestJS service rather than the original TypeScript source.

NestJS · PostgreSQL · Docker · REST APIs
Backend · Flutter client

DuckyWare Store

Full e-commerce application with a database-driven catalogue, nested categories, authentication, inventory, carts, wishlists, orders and several payment flows.

Python · Django · SQL · JavaScript
Live demo · Source

Toolbox in progress

DataCleanr and Api2Class are the first tools in a small family of practical utilities. I am currently developing Mapper, a visual tool for mapping classes, DTOs and data models.

Developer tools · Data transformation · Code generation
Browse all tools

Technical focus

Core: Python · REST APIs · SQL · PostgreSQL · Docker · Git/GitHub
Also worked with: Flutter/Dart · Java · Kotlin · JavaScript/TypeScript · React · NestJS · Django · Laravel · Firebase · Pandas

More work

  • Cinema App — Flutter app with TMDB integration, Clean Architecture, API-to-domain mapping and local SQLite favorites. Live demo
  • BlockFall — falling-block game built from scratch with Python and Pygame, later compiled to WebAssembly. Play in the browser
  • CS50 AI — implementations from Harvard's CS50 Introduction to Artificial Intelligence with Python.

About me

I hold a Higher National Degree in Multiplatform Application Development (DAM) and I am currently studying Computer Engineering at the UOC. My practical training includes building a mobile application and its ERP integration during an internship, as well as independent projects across backend, data tools and cross-platform development.

I have also completed Harvard's CS50, CS50P, CS50W and CS50 AI courses. The coursework is part of my background; the projects above show what I build with it.

Currently

  • Building developer and data tools: DataCleanr, Api2Class and Mapper
  • Working on backend services, APIs, automation and applied AI
  • Studying Computer Engineering at the UOC

Pinned Loading

  1. DataCleanr DataCleanr Public

    Client-side web tool for cleaning, normalizing and deduplicating CSV/Excel data without sending files to a server.

    Python

  2. Api2Class Api2Class Public

    Client-side tool to convert JSON API responses into classes and typed models for multiple programming languages.

    Python

  3. Duckyware_Store Duckyware_Store Public

    Simulation of an e-commerce business selling computer hardware with inventory control, offers, customers, sales, and payment gateways. Corresponds to the Final Project for the course CCS50's Web Pr…

    Python

  4. Cinema_App Cinema_App Public

    Flutter movie discovery app with TMDB integration, Clean Architecture, Riverpod, API data mapping and local SQLite favorites.

    Dart

  5. Erp_Flutter_Demo Erp_Flutter_Demo Public

    Public demo of a Flutter mobile app built to connect field staff with a company ERP through REST APIs, roles and permission-based workflows.

    Dart

  6. Flutter_Shop_Admin Flutter_Shop_Admin Public

    Tienda de articulos realizada en Flutter

    HTML