Carlos O'Donell <carlos at systemhalted.org> is an official FSF steward for glibc (GNU project maintainer).
Also reachable via <codonell at redhat.com> and <carlos at redhat.com>
Online on IRC as patofiero, odonell, or codonell.
Carlos works on open source tools, primarily glibc, for Red Hat.
Carlos currently leads the Red Hat glibc team which is part of the Red Hat Base OS Platform Tools team.