2007 - : Tenure-track position, Copernicus Astronomical Center, Polish Academy of Sciences

2006-2007: Postdoctroral Fellow, University of Nevada Las Vegas

2003 - 2006: Postdoctroral Fellow, Copernicus Astronomical Center

2003: Postdoctroral Fellow, European Research and Training Network, Max Planck Institut fur Astrophysik

1998 - 2003: Graduate Student, Copernicus Astronomical Center

2000: Pre-doctoral Fellow, Harvard Smithsonian Center for Astrophysics

1999: Summer student, International School for Advanced Studies, Trieste

1993 - 1998: Undergraduate student, Warsaw University, Physics Department, Astronomical Observatory

2006-2007: "MHD flows in the collapsar model of GRBs and Supernovae" (held by Prof. D. Proga), NASA grant No. NNG05GB68G, (Co-Investigator)

2005-2007: "Winds and outflows from accreting black holes" (held by Prof. B. Czerny), Polish State Committee for Scientific Research, Grant No. 1P03D00829 (Co-Investigator)

2002-2005: "Cosmic sources of high energy particles and radiation" (held by Prof. J. Ziolkowski), Polish State Committee for Scientific Research, Grant No. PBZ/057/P03/2001, (Co-Investigator)

2002 - 2004: "Two-phase accretion onto a black hole in active galactic nuclei" (held by Prof. B. Czerny) , Polish State Committee for Scientific Research, Grant No. 2P03D00322 (Co-Investigator)

2003: "Time evolution of the accretion disk including the mass exchange between the disk and a hot corona in black hole X-ray binaries", Polish State Committee for Scientific Research, Grant No. 2P03D00124 (Principal Investigator)

2000 - 2002: "X-ray spectral analysis of Narrow Line Seyfert 1 galaxies", Polish State Committee for Scientific Research, Grant No. 2P03D01519 (Principal Investigator)

1999 - 2001: "Wide band spectral and timing analysis for active galactic nuclei" (held by Prof. B. Czerny), Polish State Committee for Scientific Research, Grant No. 2P03D01816 (Co-Investigator)

1998: ``Are the mechanisms of activity in Seyfert 1 and Seyfert 2 galaxies the same?'' (held by Prof. B. Czerny), Polish State Committee for Scientific Research, Grant No. 2P03D00410 (Co-Investigator)