Hi. I'm Jon Jagger.
I help software teams improve their effectiveness.
I built cyber-dojo, the place teams practice programming.
I'm based in the UK.
I've worked in 22 countries.
If you don't like my work, I won't invoice you.
Hire me
If you want to change how someone thinks, give up. You cannot change the way people think. Instead, give people tools that help them do something different.