Lucas Nussbaum

PhD thesis on the study of distributed systems using emulation (execution of applications in an artificial environment instead of using simulation, or execution on real systems).

Gained a deep expertise in software network emulators (Dummynet, NISTNet, Linux TC/Netem).

Built a prototype emulator for P2P systems using FreeBSD, involving a Libc modification to allow transparent network virtualization at the process level.

Volunteer Developer for the Debian GNU/Linux Operating System. Active member of the Quality Assurance and Ruby teams.

Performed rebuilds of all packages from their sources on a regular basis, using a cluster of PCs (allowing the rebuilding of all packages in less than 5 hours, vs 10 days on a single system). This allows proactive detection and fixing of problems, as well as evaluation of the consequences of changes (such as the introduction of a new compiler version).

Developed tools to detect packages that are poorly maintained, and keep maintainers aware of problems with their packages.

Active member of the Technical Commitee of Grid'5000, a 4000-CPU Grid dedicated to research in Computer Science. Participated in the design and development of the infrastructure.

Taught computer science courses at the B.S. level, including operating systems, networks, databases, and C programming.

Member of the XMPP foundation. Developed XMPP4R, a Jabber library for the Ruby programming language. Created and maintained the largest French Jabber server.

Wrote Feed2Imap, an RSS/Atom feed aggregator that uploads articles to an IMAP server, and Ruby-feedparser, the underlying library.

Regularly gave talks in French and English at Free Software conferences and organized conferences or meetings.