The event will be hosted by Zenika.
For existing Jenkins developers, this event provides an opportunity to meet other fellow Jenkins developers who you've only known by their e-mail! For people who are interested in writing plugins or hacking core, the event provides an opportunity to ask questions and get answers right away.
If you don't know what specifically to hack on, no worries --- we can show you low-hanging fruits that you can work on, on the spot.
The event will likely wrap up in the evening, around 5-6pm, and if there's sufficient interest, we'll head for a dinner/drink.