Community  »  Team

Jan Schneider

  • Core developer and a founding member of Horde, LLC.
  • Member of the Horde Project since 2001.
  • Co-founder of AMMMa AG, providing innovative, award winning e-learning and knowledge management solutions.
  • Studied Computer Science and Educational Science at University of Bielefeld, Germany.
  • Website:
  • Amazon wishlist:

Michael J Rubinsky

Ralf Lang

  • Studied computer sciences 2003-2007 at Friedrich Schiller University of Jena, Germany
  • Developer and trainer at B1 Systems GmbH.
  • Projects involved perl, php and large-scale deployment automation (aka cloud)
  • Worked on H4 versions of Sesha and Passwd. Ohloh says commits started in March 2011, but earlier patches exist.
  • Interested in adding xmpp protocol support
  • Website:

 Retired Developers

Chuck Hagenbuch

Michael Slusarz

  • J.D. University of Colorado School of Law - Boulder, CO, USA (2003)
  • B.A. Chemistry, B.A. Biochemistry, Minor in Computer Science - University of Colorado, Boulder (2000)
  • Work mainly on IMP and Horde.
  • Stuff... Things...

Ben Klang

  • I am a Horde Core developer and one of the founding members of Horde LLC.
  • My Horde contributions are primarily on the LDAP integration, WebDAV/CalDAV functionality, the Horde_Cache SQL driver and service management applications (Beatnik, Vilma, Operator). I also administer the Horde Developer servers.
  • My Other Open Source Projects: Alkaloid Networks Projects
  • When I need to let off some steam I beat my drum in The Band: Seed & Feed Marching Abominable

Gunnar Wrobel

Matt Selsky

  • Senior Systems Engineer, Columbia University's Information Technology department.
  • Joined the Horde team in 2005.

Jon Parise

Eric Rostetter

Marcus I. Ryan

  • Network Administrator, Iowa Department of Transportation, Ames, IA, USA.
  • My first major contribution was Klutz, which has since cost Chuck hours of lost time :)
  • I am currently working on HordeConduit - a conduit for synchronizing Horde applications Kronolith, Nag, Mnemo, and Turba with a PalmOS-based PDA.
  • Personal:

Anil Madhavapeddy

Rich Lafferty