Cofounder OpenCage. Software engineer. Geocoding. Cycling. Speaker at several SOTM conferences. Love my GPS device and managed to survey a whole city (10x10km) in a four month project.

Interested in timezones, elevation, ocean/sea, disputed border data and general tagging validation tools.

Recently cleaning up postcodes all over the world (those too long, too short, in the wrong area).

If you have spare time try https://nominatim.org/qa/