Her recent work is in the cell-site backhaul and Enhanced Packet Core designs for AT&T LTE deployment, Her other interests are in areas of large scale IP/MPLS backbone routing, MPLS traffic engineering, multicast, and MPLS applications such as VPNs. Prior to joining AT&T worked as a senior software engineer in Network Routing Systems group at IBM. Maria is an author and a contributor of several IETF drafts and has presented at several international MPLS conferences.