4/2006- Research Scientist, IAC
1/2002- 4/2006- Ramón y Cajal Postdoctoral Fellow, IAC
1/1999-12/2001-Fundación Andes Prize Fellow, Yale U.-U. de Chile
3/1996-12/1998- Postdoctoral Reseach As., Carnegie Observatories, USA
9/1995-12/1995- Visiting Scientist, U. di Padova
10/1991-9/1994-Astrofísica Residente, IAC