| SAT and Math Tutor 2004-present |
| Co-founder and Latin Instructor St. Katharine Drexel Homeschool Co-op, 2007-present |
| Co-founder and co-owner Stoneham Meadows, 2007-present |
| Math Instructor Palomar College, San Marcos, CA, 2001-2003 |
| Co-owner, President Real-Sport, Carlsbad, CA 1999-2001 |
| Owner 4CATS Scientific Communications, 1997-2000 |
| Chief Stardust Education and Public Outreach, Jet Propulsion Laboratory 1994-1997 |
| Chief New Millennium Education and Public Outreach, Jet Propulsion Laboratory, 1995-1996 |
| Science Coordinator Galileo Imaging Team, Jet Propulsion Laboratory, 1990-1995 |