Their lead developer is paid $72k/yr, and mobile developer $49k/yr.

I'm not sure what to think, but that's definitely interesting. I wonder what chess.com is paying their engineers.

Can you explain what is interesting in those salaries?

They are extremely low (at least by the standard of Software Engineers based in the US)

Lichess is a non profit from France (like it’s author) and those salaries quite normal for France.

No it is not. Yes it could be for your average everyday developer but if someone can run site with millions of active users alone, there is no difference in salary based on where the developer stays. Does Mistral pays $100k salary to researchers?

Pretty sure OpenAI pays higher than chess.com

OpenAI doesn't pay 1 developer higher salary than all the chess.com developers combined.

Could be part time

Or full time. In some countries, those are pretty decent salaries. I earn €50k in one of the poorer European countries and that puts me in the top ~8%.

Both would be very decent salaries in South America also

I thought so too, but another entry in their sheet is "Sysadmin (part time)" for $18k/yr. So either they forgot to put part time in parens, or they're paid full time wages. I wonder which...