• 2010 - Present: Associate Professor of Mathematics, Tulane University, New Orleans, LA
• 2010 - Present: Adjunct Associate Professor of Biostatistics, Tulane University, New Orleans, LA
• 2015 - Present: Consultant, World Food Programme, Rome, Italy
• 2005: Research Fellow, Statistical and Applied Mathematical Sciences Institute (SAMSI)
• 2005: Visitor, Institute of Statistics and Decision Sciences, Duke University
• 2005: Visitor, Institute of Statistics and Decision Sciences, Duke University
• 2004 - 2010: Adjunct Assistant Professor of Biostatistics, Tulane University, New Orleans, LA
• 2003 – 2010: Assistant Professor, Department of Mathematics, Tulane University, New Orleans, LA
• 2002 – 2003: Consultant, Agilix Corporation, New Haven, CT
• 2001 – 2003: Statistical Analyst, Department of Pathology, Yale University School of Medicine
• 1997 – 2003: Teaching Fellow, Department of Statistics, Yale University
• 2001: Instructor, Yale Summer Programs
• 1998 – 2000: Assistant Systems Administrator, Yale University Statistics Department
• 1999: Biostatistics Intern, Bristol-Myers Squibb Pharmaceutical Research Institute, Wallingfold, CT
• 1995 – 1996: Associate Analyst I, Synergy, Inc., Washington, DC
• 1994 – 1995: Research Assistant, Synergy, Inc., Washington, DC

• 2014 - Present: Associate Professor, Tulane University
• 2009 – 2014: Assistant Professor, Tulane University
• 2006 – 2009: Lecturer of Mathematics, University of Pennsylvania

• 1988 – Present: Professor, Tulane University
• 1999: Visiting Scholar, University of Florence
• 1996 – 1999: Tulane University Chair, Mathematics Department
• 1979 – 1988: Associate Professor, Tulane University
• 1986: Visiting Scholar, Harvard University
• 1977 – 1979: Assistant Professor, Johns Hopkins University
• 1975 – 1977: Instructor, University of Utah
• 1973 – 1975: Adjunct Instructor, New York University

• 2016 - present: Professor of Practice, Tulane University, New Orleans LA
• 2015 - 2016: Visiting Assistant Professor, Tulane University, New Orleans LA
• 2011 - 2014: Adjunct Assistant Professor, Tulane University, New Orleans LA
• 2009: Adjunct Assistant Professor, Tulane University, New Orleans LA
• 2005 - 2008: Visiting Assistant Professor, Tulane University, New Orleans LA

• 2010 – Present: Professor of Mathematics, Tulane University
• 1985 – 2011: Group Leader, Mathematical Modeling and Analysis Group, Los Alamos
• 1986 – 1988: Administrative Manager, Mathematical Modeling and Analysis Group, Los Alamos

Developed and updated quantitative methods course to satisfy curriculum needs for Business majors at LSU.

• 2017 – Present: Professor, Mathematics, Tulane University
• 2009 – 2017: Associate Professor, Mathematics, Tulane University
• 2004 – 2009: Assistant Professor, Mathematics, Tulane University
• 2001 – 2004: Postdoctoral Fellow, Mathematics, University of Missouri-Columbia

• 2016 – Present: Associate Professor, Mathematics, Tulane University
• 2015 Fall: Mathematical Sciences Research Institute (MSRI), Berkeley, CA
• 2013 – 2016: Assistant Professor, Virginia Tech
• 2012 – 2013: Research Fellow, Institute for Mathematics and Its Applications (IMA), University of Minnesota
• 2008 - 2012: Zorn and NSF Postdoctoral Fellow, Indiana University

• 1998 – Present: Professor, Mathematics, Tulane University
• 1993 – 1998: Associate Professor, Mathematics, Tulane University
• 1995: Visiting Member, Courant Institute, New York University
• 1986 – 1993: Assistant Professor, Mathematics, Tulane University
• 1990 – 1991: Visiting Assistant Professor, Mathematics, University of Utah

• 1979 – Present: Associate Professor, Tulane University
• 1973 – 1979: Assistant Professor, Tulane University
• 1972 – 1973: Assistant Professor, University of Hawaii