Jeremias Pettinen

A jack of some trades based in Helsinki, Finland. Will write code for coffee. Contact information is on the main page.



Aalto University (170 ECTS)

minor:computer science
BSc:work in progress
2010–2013 High school: Mikkelin lukio 1 2 3


Some odd jobs. Nothing relevant.


TL;DR: Python, JS, SQL, the full stack.

Right at home in a Unix shell. Will also use Windows, grudgingly.

I prefer Python for most things a shell script can’t do, including web backends with Django or Flask. I’ve used or at least dabbled with plenty of languages (e.g. C+OpenCL, Scala, MATLAB in school) and technologies and will probably learn any new one rather quickly. I’d like to have a project suitable for, say, Rust or Go. As much as I hate it, I’m quite experienced with PHP.

Databases I know and love include Postgres and Redis. I do maintain MySQL databases as well.

I can fix up a modern web frontend, though I’m not particularly skilled with any single JS framework. I have tried out more lightweight ones like Knockout and Vue.js (or just plain old jQuery) in hobby projects.

I’m not looking for media work in particular, but I can probably whip up something in Photoshop, Premiere Pro, After Effects and Audition if need be. Or handle media in scripts with tools such as ImageMagick and FFmpeg.

My non-programming languages are native Finnish and fluent English. Might be able to write (not speak) a coherent sentence in German and Swedish as well.

Want an example project? Too bad, I’ve not finished anything of significant scale. And the small stuff I like to publish pseudonymously. Anyway, here’s an online card game (probably non-functional, so see the source code).


I care about information security, privacy and typography. I will nag about flaws in those. If I’m not online, I’m probably playing the piano, out photographing or in virtual reality.