Hi, I'm Daniel Penedo Lázaro 👋

I’m a Basque Developer based in Argentina, passionate about automation, data processing, and visualization. I enjoy building full-stack solutions, scripting for efficiency, and writing clean, maintainable code.

I hold diplomas in Full Stack Web Development with Django and Spring Boot from the National Technological University (UTN), and a course in Machine Learning. I also have hands-on experience creating professional websites, automation tools, and data-driven applications for different clients and research projects.

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# Technologies

## Programming Languages: Python, JavaScript, Java, SQL, and Bash.

## Data & Automation: Pandas, Matplotlib, Plotly, Streamlit, BeautifulSoup, Requests, and Web Scraping.

## Back End Technologies: Django, Spring Boot, Express.js, and REST APIs.

## Front End Technologies: React, Next.js, Astro, Tailwind, SASS, and Bootstrap.

## Linux & DevOps: Proficient in Linux environments, Bash/Zsh scripting, and Git version control.

## Design Tools: Figma, Gimp, and Inkscape.

# Projects

## Data Projects

Basque Sociometer - Official Survey Data Analysis App

A data analysis application built on official periodic studies of the Basque population developed with Python, Pandas for data processing, and Plotly & Streamlit for interactive visualizations and deployment. Features interactive filtering by age, sex, social class, education level, and knowledge of the Basque language (Euskera).

Repository Link

Application Link (Spanish)

Application Link (Basque)

News Scraper — News Metadata Scraper for Sociological Research

A Python-based web scraper that extracts news headlines, URLs, and metadata from major local news outlets in Mar del Plata. Runs daily as an AWS Lambda function and stores data in S3 for further analysis.

Built using BeautifulSoup, Requests, and Python logging. The project follows a class-based modular architecture for maintainability and scalability.

Repository Link

## Professional Web Development

Matafuegos Mar del Plata - [Live Site]

Complete rebuild of an existing fire safety company website with focus on SEO optimization, performance improvements and modern UX/UI.

Developed using Astro framework with React components and Tailwind CSS, achieving 90+ PageSpeed score through optimized assets and efficient code structure.

WebSite Link

Escuela de Columna - [Live Site]

A website created for a multidisciplinary team of healthcare professionals, including physiotherapists and doctors. This project was developed using the Next.js framework for React and Tailwind CSS.

WebSite Link

Albert Martin - [Live Site]

A psychologist and mediator's Website. I also made the design, It's static and built with Bootstrap.

WebSite Link

## Full Stack Projects

Ceramic Artisan E-Commerce Platform - Template/Showcase

An e-commerce platform designed for ceramic artisans, allowing them to showcase and sell unique, handcrafted pieces. The project was developed using Django as the backend framework, Vanilla JavaScript for dynamic interactions on the frontend, and Tailwind CSS for a modern, responsive design.

Repository Link

ChronoScript

ChronoScript is a web application developed in two versions: one using Vanilla JavaScript, HTML, and CSS, and the other with React and TypeScript using Vite. Both versions include three sections: Stopwatch, Countdown, and World-times (by consuming an API). They also utilize Jest for testing.

Repository Link

Vanilla JS WebSite Link

React TS Website Link

tuVeterinaria - Django Ecommerce

An ecommerce site built with Django Framework, featuring an SQLite database and user authentication. It was my final project for the UTN diploma on Django Full Stack development.

Repository Link