Professional History
| 2006-present | Associate Professor, Applied Linguistics Concentration, Department of Linguistics, Georgetown University. |
| 2002-2006 | Assistant Professor, Applied Linguistics Concentration, Department of Linguistics, Georgetown University. |
| 1997-2002 | Assistant Professor, Multilingual Multicultural Studies, Department of Teaching and Learning, New York University. |
| 1998-1999 | Visiting Associate Professor of Research, Centre for Research on Bilingualism, Stockholm University (Summer 2000; 2001; 2002). |