The Columbia Astrophysics Laboratory (CAL) at Columbia University in the City of New York invites applications for a Research Scientist or Senior Research Scientist position in the area of observational astrophysics. The successful candidate will advance and expand the research programs in CAL by leading a forefront scientific research program within the broad areas of astronomy and astrophysics made possible by new space-based observatories such as, but not limited to, the James Webb Space Telescope (JWST).  The selected candidate will formulate and conduct leading independent and original astrophysical research using public or proprietary datasets, incorporating ancillary observational data, simulations, and/ or theoretical models, as appropriate to accomplish their research ob