About Karol Sójko
Developer, software architect and a team leader. Karol is a big fan of Behavior Driven Development and open source software. In his everyday work he tries to share his experience and actively participate in development and spreading a good word about open source projects like Symfony, Behat or PhpSpec. He is also fascinated by the process of making teams work better and tweak their productivity. After hours he is one of PHPers meetups organizers in Poland.
Karol is the author of To-Do: Team!: Simple productivity techniques for improving your team & making software that matters
You can connect with Karol Sójko on twitter, and subscribe to his helpful tips on how to get your team to the next level.