Jonas spent seven years building routing and arrival-time systems at a large ride-hailing platform, where he eventually led the ETA team and developed strong opinions about confidence intervals that he shares freely at dinner parties.
On weekends he pointed a software-defined radio at the Gothenburg harbor from his balcony, decoding AIS transmissions for fun and publishing small open-source tools nobody asked for and several hundred people ended up depending on. When he met Amara in 2021, she described her 40-tab spreadsheet; he described his antenna. It was obvious within the hour.
He runs engineering at Windrose — five engineers, one calm pager — and still ships code most weeks. His standing argument is that “the map is the product”: if the board isn’t legible at a glance, the pipeline behind it doesn’t matter.
Quick bearings
- Favorite chart
- The harbor approach to Gothenburg — all shoals and honesty.
- Editor
- Helix, tmux, no mouse. He knows. He’s heard it.
- Weekend
- Sailing a very slow Folkboat, very slowly.
- First computer
- A hand-me-down Amiga 500 with a temperamental disk drive.