Wanna talk?

Not a fan of Facebook? Drop me an email on jelle@vandevliet.me!

You can also contact me on Facebook Messenger.

Want to know more about me?

I'm a creative developer, with a passion for the internet, new technologies and side projects. During the day, I'm an innovation hacker @ EY/The Factory, where I work in the internal innovation lab of EY. At night I'm available for sporadic freelance engagements, but I mainly work on my own indie-projects then.

I started out making websites from a young age. First in Dreamweaver, later in Flash (😱). The more websites I made, the more I started really programming; first in PHP, now mainly in Python and Javascript/Node.

Side-projects are my first love. Some of them got in the news in Belgium and the Netherlands. Others went viral on reddit and quite a few have proven to be quite lucrative side gigs.

In my spare time I like to create even more side projects, watch Flemish TV shows (pre-2005), listen to The National & U2 and drink delicious Belgian beers.

Side projects I've made

Saveloop - 2019

Prijzenvolger (the price tracker I created in 2016) was discontinued in 2017, and now relaunched with a new name: Saveloop! The focus is no longer Belgium & The Netherlands, but international: it allows tracking prices of all kinds of international shops, from Aliexpress to Bol.com, Rakuten and Flipkart.

Autoresponder for Facebook - 2018

The autoresponder is a Facebook bot that automatically responds on new comments on a certain post of your Facebook page. By creating unique comments, this will skyrocket your engagement numbers. For more info, check out the autoresponder page or read the accompanying blogpost.

Bol.com Rekeningopvuller - 2015

Originally this was an interactive tool (made with React.JS) where you enter the amount you're short. A-B testing showed that people preferred just an overview of all the products.

More info.

Prijzenvolger (discontinued) - 2016

(relaunched as Saveloop.co)
A price tracker I made that tracked the prices of over 15 million products in 50 Belgian and Dutch online shops. It was written completely in PHP (using the Laravel framework). It was hosted on AWS and Digitalocean. First it used MySQL to store all the data, but later I used Elasticsearch to save all the product data.

Marketingwise I learned a whole lot about GTM here. I even managed to install Enhanced E-commerce on it (although it was not a webshop).

At the time I launched it, I was still a student with a lot of free time to work on it. Maintaining it while working a full-time job was too hard, and the AWS charges kept creeping up. So I discontinued it.

Scrapely (discontinued)

A Chrome extension to help people scrape certain things, like Facebook groups or Producthunt upvoters. Made with the Vue.JS framework, which I absolutely love now!

More info.

EZ GTM (discontinued)

A Chrome Extension to help marketing people create triggers/tags/variables straight from a website. It uses the GTM API to push those triggers, etc straight to GTM.

Also made with VueJS.


  • Introduction to Computer Science CS50 – HarvardX (edX)

  • Becoming an Entrepreneur – MIT.x Launch.x (edX)

  • Machine Learning – Stanford Univeristy (Coursera)


  • Go-to stack and other tech: React, Firebase, React Native, Bulma.

  • 🐶 ❤️

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