YongJoon

Software engineer building tools for cities, predictions, and open knowledge.

Available for collaboration

Projects

xity.dev yesang.xyz valuator.dev

Profiles

GitHub LinkedIn

Writing

Blog Notes

Contact

yongjoon@proton.me

Featured

xity.dev Urban data APIs for city-scale analytics and planning tools.

yesang.xyz Calibrated prediction platform for structured forecasting.

valuator.dev Open-source valuation engine for real estate analysis.

Now

Currently focused on building urban data APIs and experimenting with calibrated prediction systems. Reading "Superforecasting" by Tetlock. Based in Seoul.