Greetings! My name's Matias.

Creating things is my thing. I've built software professionally for roughly a decade. I've been working at Valuemotive for the majority of that time. Besides tech, I love music. I used to make shoegaze and experimental loop-based music as Butsku — these days I play bass in Paimentolaiselämä. Above all, I am a father to a wonderful baby boy!

I write in-depth articles about tech, travel and other interests of mine. For lighter content, there's the journal.

You can reach me at, or on Twitter.

Recent content

  1. Liikennematto devlog #2: build your own roundabout!

    8 min read

    The traffic simulator has gained new features. Learn all about the new map editor and how it came to be.

  2. Liikennematto devlog #1: prototyping traffic simulation with Elm

    10 min read

    I've been prototyping traffic simulation for a game in Elm. In this post I go through the development so far and demo the results.

  3. Take control of unexpected data at runtime with TypeScript

    17 min read

    Learn how to use TypeScript type definitions to get better guarantees for runtime safety.

  4. The Decade

    6 min read

    Top 10s of things from the 10s. Let's get sentimental!

  5. Paimentolaiselämä - "Lottovoittaja"

    1 min read

    Check out my band's first music video for our brand new single!

  6. You should travel to Albania!

    16 min read

    A brief guide to travel in Southern Albania from personal experience.

  7. Five years at Valuemotive

    15 min read

    Looking back at my career progression from a junior front-end developer into a software architect and HR rep at Valuemotive.

  8. Union types in TypeScript: modeling state

    8 min read

    Get familiar with union types in TypeScript with practical examples. You will get rid of of complex and buggy boolean logic by using union types to model the state of your application. Your colleagues will thank you later.

  9. Paimentolaiselämä EP

    1 min read

    Me and my bandmates recently released our first collection of songs.