As a full-stack developer, I have acquired a diverse skill set encompassing React for dynamic front-end development, Node.js for robust server-side solutions, and the art of web scraping and automation. My proficiency in these technologies allows me to create modern, responsive web applications with a keen eye for user experience. I'm committed to staying updated with the latest industry trends, ensuring that I can deliver cutting-edge solutions to meet clients' needs effectively.
Javier Heredia Molero
Full Stack Developer (React+NodeJS) / Automating boring stuffs / Data mining or Web Scraping
Skills
Front-end Development
Advanced
- HTML
- SCSS/SASS/CSS
- Javascript
- ReactJS
- Redux.js
- Bootstrap
- Material Design
- WebPack
- Vite
- Babel
- Figma
Back-end Development
Intermediate
- Node.js
- Restful API's
- Playwright-chromium
- pm2
- expressJS
- koaJS
- MongoDB
- MySQL/MariaDB
- sqlite3
Version Control
Advanced
- Git
- Git flow
- Github
Soft Skills
Master
- Motivate people to do their best
- People and interpersonal skills
- Good communicator
- self-learning
- Critical thinking
- Enthusiast
- Loyal
- Initiative
- Involvement
Other Development Skills
Intermediate
- Linux/Bash
- NFC
- Arduino
- Raspberry
- Basic electronic / Soldering
CMS
Intermediate
- WordPress
- Strapi
Other programming languages
Beginner
- Java
- Python
Work Experience (2)
Aug 2021 - Jul 2023
Full Stack Developer in Quality Assurance Department
Foxxum GmbH
Main task: Developer of an internal tool called: 'Test Suite' | Others minor tasks: Check backward compatibility with TV's. Do end to end testing for Foxxum Apps. Help third companies to fix bugs in their apps.
- Allow us to do get properties from several devices(TV's).
- Do functionality tests with DRM (widevine & playready).
- Analyze methods GET, POST, PUT, DELETE on requests & responses.
- Analyze keyCodes send it by remote controller and compare with keyCodes on device properties.
- Implementation of: hlsjs, dashjs, videojs, shaka & html5 native video.
- Adapt end-to-end testing with TestCafe for TV's.
- Navigation tests between screens in third parties applications.
- I provided information and technical feedback on the possible problems that could be caused by the issues that the applications had.
Mar 2021 - Jun 2021
Erasmus Developer Internship
Foxxum GmbH
At this time, I learned how to handle React and how to deal with compatibility problems with TVs.
- Comparison of end-to-end testing tools: Cypress & TestCafe. In order to check viability of this tools with TV's
- I developed a music application for TV's with React.
- I developed an application for a newsletter with React
Projects (5)
(Private) Whatsapp translater
Jun 2023 - Current
- whatsapp-web.js
- Playwright-Chromium
- pm2
Still in progress. Now I live in Germany. Because of this, I have several groups of German friends and several chats with Germans. To avoid copying and pasting every time they write a message, I came up with the idea of creating a translator for WhatsApp. I used whatsapp-web.js for the bot & playwright-chromium for scrape DeepL
Wg-Gesucht-post
Sep 2023 - Current
- Koa
- Playwright-chromium
- react
- formik
- axios
I decided to create a tool that allow me to send messages in bulk for all ads/offers given a valid URL. It contains two parts: frontend/backend. Frontend is made in React.js & Backend is made in Koa
(Private) Comics scraping + Publish by WooCommerce API in his WordPress site
Apr 2022 - Jul 2023
- Koa
- Playwright-chromium
- react
- formik
- axios
A client wanted to obtain the data of all the comics on a wholesale website and then publish them all on their website via the WooCommerce API.
(Private) Scraping Videos
Aug 2021 - Feb 2022
- axios
- mongoose
- nodejs-file-downloader
In 2021, I subscribed to a famous video website. I started browsing the API and realized that after my subscription ended, the API was still working without problems, so I decided to download all the videos.
(Private) G2 PDF Evolution
Dec 2021 - Dec 2021
- axios
- express
- node-cron
- node-telegram-bot-api
- pdf-lib
A friend and I decided to make an application for pdf generation through heroku web and a telegram bot
Education (3)
2019 - 2021
Higher Technical Certificate (CFGS)
Web Application Development
I.E.S. FRANCISCO AYALA
- (Linux) Computer Systems
- (MySQL) Databases
- (Java) Programming
- (HTML/CSS) Markup languages and information management Systems
- Development environments
- (Javascript) Web Development in client
- (NodeJS)Web development in server
- Web application deployment
- (SASS/SCSS) Web Interface design
- Final Project - End to end Testing: Cypress VS TestCafe
2017 - 2019
Bachelor certificate
I.E.S. PADRE SUAREZ
2006 - 2010
Secondary Education Certificate
I.E.S. AVE MARIA 'LA QUINTA'
Languages
Spanish
Native speaker
English
Intermediate
German
Beginner