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/home/julianv

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This website is still a work-in-progress.


I'm Julian, a 23 year old software developer from Drenthe, the Netherlands.


I'm currently working at Paytree Payment Solutions.
Here, I'm building a full-stack payment platform.

Tech stack

This website is built using Next.js and Material UI for styling.



At Paytree, I develop a payment platform mostly used on events like festivals. This platform includes:


- A dashboard for product and cash register management, and statistics;

- A mobile POS Android app used by the cashiers, where they can select products and pay using various payment methods, including NFC balance cards and contactless card payments;

- A customer-facing balance card website, where users can see their balance and past orders, and top-up their balance cards using iDeal;

- And an API that powers all of this.



The Paytree dashboard is built with Material UI for styling as well, but on top of plain React.js for now. I plan to move this to Next.js as well in the future.


The mobile POS app is built with Flutter.


The API that powers both of these is built using Ktor, Koin, Exposed, and backed by a PostgreSQL database.


All of this is deployed to and built using Google Cloud.

A little bit more about me

In 2013, I discovered my passion for programming, which was sparked by watching The Coding Train. I began my formal programming education in 2017, following the fundamentals I had learned in Processing.


From October 2018 to March 2019, I had the privilege of participating in an international internship in the United Kingdom. During this time, I specialized in Node.js for back-end development. One of the most valuable skills I acquired was the use of Async.js, which led to my proficiency in callbacks, as an alternative to the conventional async/await approach.


As a hobby, I enjoy playing the drums, which I started fairly recently. My expertise with the drums has been primarily self-taught, and I make it a point to practice daily, constantly seeking to master new songs.


Video games have been a significant part of my life for as long as I can recall. My all-time favorite game is The Legend of Zelda: Ocarina of Time, followed closely by Clone Hero and Breath of the Wild.


My skill set includes:

  • React.js
  • Kotlin
  • Flutter/Dart
  • Google Cloud