Juan David

Hello, I'm David Sandoval

Computer Engineer graduated from the National University of Piura with training in web development and frontend certification from Alura Latam (ONE EDUCATION). I have a solid portfolio of projects using technologies like React, Django, and PostgreSQL. Passionate about creating efficient and scalable web applications. Currently looking for an opportunity to apply my knowledge and continue learning in a professional environment.

Badges

Work Experience

  1. •

    Fullstack Developer Freelance

    Chirasoft

    I migrated an educational institutional site from WordPress to Angular, improving its performance, maintainability, and user experience. I contributed to the comprehensive development of an e-commerce platform, from frontend to backend business logic.
  2. •

    Full Stack Developer (CS50W)

    HarvardX

    I implemented complete projects using Django, JavaScript, and Bootstrap, including an auction platform and an AJAX-based email system. Focused on responsive design, user authentication, and dynamic navigation.
  3. •

    Data Science Trainee

    Alura LATAM / Oracle Next Education

    I participated in an intensive Data Science training program focused on real-world projects and the application of modern analysis and visualization tools. Developed skills in statistics, exploratory data analysis, data cleaning, and transformation with Python. Worked with libraries like Pandas, Matplotlib, and Scikit-learn to build regression and classification models. Implemented interactive notebooks in Jupyter and developed data-driven solutions for real-world problems. Learned fundamental concepts of Machine Learning, data pipelines, and model evaluation.
  4. •

    Technical Support

    Provincial Municipality of Piura

    I provided technical support for maintenance and configuration of technological infrastructure, ensuring the operation of systems and equipment in an institutional environment. I developed skills in diagnosing and resolving incidents, optimization of technological processes, and attention to requirements, contributing to operational efficiency. My experience strengthened my ability to address technical challenges and improve systems management, key skills in development and IT environments.
  5. •

    Junior Web Developer

    Alura Latam (ONE Program)

    I built interactive web applications, including games, online stores, and landing pages using HTML5, CSS3, and JavaScript. Participated in coding challenges applying good UI/UX practices.

Projects

TechShop project image

TechShop

  • Next.js
  • React
  • Sanity
  • Tailwind
ByteShop E-Commerce offers features advanced product filters, a dynamic shopping cart, secure authentication, a wishlist, dark mode and an intuitive user dashboard. Content is managed via Sanity CMS and the deployment on Vercel ensures top performance and effortless scalability.
Buona Vita Nutrición project image

Buona Vita Nutrición

  • HTML
  • CSS
  • JavaScript
  • Chart.js
Buona Vita Nutrition is a web-based system for nutritionists to record, view, and analyze patients’ clinical data. It features automatic BMI calculation, data editing, and persistent local storage. Leveraging Chart.js for interactive charts, its fully responsive design, real-time validation, and notification system ensure a smooth and professional user experience.
Nike Demo project image

Nike Demo

  • Astro
  • Tailwind
  • JavaScript
Nike Website Demo is a landing page built with Astro, TypeScript and Tailwind CSS that faithfully replicates Nike’s official site, prioritizing performance and pixel-perfect design. Its modular architecture enhances maintainability, while dynamic product selection, smooth scrolling and image optimization deliver a seamless, fully responsive experience across all devices.
Doguito project image

Doguito

  • HTML
  • CSS
  • JavaScript
Doguito Petshop Admin is a web-based administrative system that enables full CRUD management of clients, products, and pets, featuring form validation and real-time notifications. The responsive interface supports dynamic inventory updates and client–pet associations. The backend provides a RESTful API via JSON Server, and the frontend is deployed on Vercel for reliability and scalability.
Mail project image

Mail

  • Django
  • Bootstrap
  • JavaScript
This project implements a single-page email client (SPA) using Django for the backend and JavaScript, HTML, and CSS for the frontend. The main goal is to provide a functional and user-friendly interface for managing emails with key features such as sending, receiving, archiving, and replying to emails.
Wiki project image

Wiki

  • Django
  • Python
  • Markdown
  • Bootstrap
This project is a Django-built encyclopedia-type website called 'wiki', which contains a single application called 'encyclopedia'
Auctions project image

Auctions

  • Django
  • Python
  • Bootstrap
  • JavaScript
  • CSS
  • HTML
El Sitio de Subastas es una aplicación web donde los usuarios pueden crear, pujar y gestionar subastas en línea. Proporciona una plataforma para que los usuarios enumeren artículos para la venta, realicen ofertas competitivas e interactúen con la comunidad de subastas a través de comentarios y listas de seguimiento.
Message Encoder project image

Message Encoder

  • JavaScript
  • CSS
  • HTML
This web page encrypts a text entered by the user, and on the same page, the user can decrypt the message if desired.
Dental Clinic project image

Dental Clinic

  • CSS
  • HTML
A modern and responsive landing page for a dental clinic focused on preventive care and dental education.
Lectures Management project image

Lectures Management

  • CSS
  • HTML
  • SQLite
  • Express
A modern web application for managing classes with CRUD operations (Create, Read, Update, Delete). Developed with basic JavaScript and a RESTful API.
Faculty List project image

Faculty List

  • Tailwind
  • Cloudinary
  • Next.js
  • MySQL
A web application for managing university faculties. This project offers a complete CRUD interface (Create, Read, Update, Delete) with a modern and responsive design.
Notes Application project image

Notes Application

  • React
  • Material-UI
  • PostgreSQL
  • Express
A modern and responsive notes application built with React and Material-UI, allowing users to create, edit, and manage notes with a clean and intuitive interface.
Hangman Game project image

Hangman Game

  • HTML
  • CSS
  • JavaScript
A classic Hangman game implemented using pure HTML, CSS, and JavaScript. The player must guess a word letter by letter before the "hangman" drawing is completed.
Aesthetic Dentistry project image

Aesthetic Dentistry

  • HTML
  • CSS
  • JavaScript
A modern and responsive website for a dental clinic specializing in aesthetic dentistry. Built with HTML5, CSS3, and basic JavaScript.

About me

My name is Juan David, although most people know me as David. I am currently a graduate in Computer Engineering from the National University of Piura. My passion for software development has led me to create various independent projects that reflect my skills and dedication.

Throughout my training, I have worked on projects ranging from web application development to mobile solutions. These projects have been an opportunity to consolidate my technical knowledge and explore technologies such as JavaScript, Java, Django, Kotlin, and relational databases like PostgreSQL, MySQL, and SQLServer.

My focus is on leveraging technology to solve practical problems and improve processes through innovation. I aspire to continue learning and contributing to the world of software development, building solutions that positively impact people and businesses.

Juan David