Full-stack web developer
& Scrum master

I specialize in

⚡ Building lighting fast web applications
🔒 Making them secure
🔥 And making them scalable

Contact me

Recent projects

Who am I?

Hi, I'm Roelof Jan! I'm a full-stack developer in Groningen and I enjoy a challenge. I'm currently working as a lead developer at Tubber, a platform to facilitate C2C, C2B, and B2B boat rentals all over the world. I found my challenge in learning and applying new technologies to solve increasingly complicated problems. As a full-stack developer, the problems I'm trying to solve are of a very wide nature. The problems range from cutting the boot time of a website in half to coming up with ways to build the platform in such a way that real-time availability of boats and booking data is possible. Even when you're working with a system that pulls its data from 5 to 10 different sources.

Do you want to know more? You can read more about me here!

Download or view my CV

You can view my CV in your browser or download a PDF version of it for later.

Do you want to know more about my skills?

I've put together a list of technologies I'm comfortable with using in production. These technologies include, but are not limited to, PHP (Laravel), JavaScript, TypeScript (Angular, React.js), and Golang. You can read more about my skills by reading about "My tech stack" or by having a look at my CV.

Recent blog posts

How to create a simple MQTT switch in Home Assistant

How to create a simple MQTT switch in Home Assistant

When you're using Home Assistant for your home automation and you've got a few MQTT devices you might want to create simple switches for your devices. However, if you're like me, this simple task turned out to be a very tough task. In this post we're going to create a visual toggle for your MQTT devices.

Posted on: November 18th, 2020
Fixing hidden infrastructure issues with Netdata

Fixing hidden infrastructure issues with Netdata

Netdata has helped me to fix a major issue by pointing me in the right direction. By visualizing the issues that were happening, it helped me to find and fix a major issue within the first hour of deploying Netdata across the different nodes in the platform architecture.

Posted on: September 23rd, 2020

Open source contributions

Are you wondering how I built this website?

Have a look at "The techstack I used to build this website" and I'll explain exactly what I've used to put this website together.

Let's work together

Connect with me and let's see how I can help you:

[email protected]






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