Jordan Sissel is the developer of Logstash and a hacker who lives under a rock in San Jose. He practices hate-driven development and gives out hugs upon request. When not hacking, he loves doing awesome things as a dad and a husband.
Lennart Koopmann has started the Graylog2 project in 2010 and founded TORCH as a company behind it in 2012. A team of developers at TORCH is working on Graylog2 in full time since 2013.
Devdas Bhagat is a system and network administrator with over a decade of experience. His skillset ranges from small corporate environments with a few tens of users, to large scale ISP systems with a few million users.
Jan-Piet Mens is an independent Unix/Linux consultant and sysadmin who's worked with Unix-systems since 1985. Jan-Piet does odd bits of coding, and has architected infrastructure at major customers throughout Europe.