The Columbia Astrophysics Laboratory (CAL) invites applications for a Postdoctoral Research Scientist (PdRS) to perform laboratory studies of dissociative recombination for key molecular ions that are used to probe the properties of diffuse clouds in the interstellar medium. The experiments will be performed on the Cryogenic Storage Ring (CSR), which is located at the Max Planck Institute for Nuclear Physics (MPIK) in Heidelberg, Germany. The successful candidate will based in Heidelberg, Germany, and will provide the day-to-day leadership for the CAL-MPIK collaboration, headed by Dr. Daniel Wolf Savin at CAL and Dr. Oldřich Novotný at MPIK. The appointment is initially for one year, with the possibility of renewal for up to two additional years; this is contingent upon the availability of funds and mutual satisfaction. The successful candidate will have a Ph.D. or the equivalent degree in Physics, Chemistry, Astrophysics, or a related field, with an emphasis in molecular physics. Desired laboratory skills include operation of particle detectors and related electronics, analog and digital signal processing, data reduction and multidimensional data analysis, and statistical and systematic error propagation. Desired computer skills include programming (ROOT, C++, LabView, Python), 3D CAD (SolidEdge), Linux OS, and Windows OS. The successful candidate will have a strong background in at least some of the areas listed above, a proven research ability, and evidence of future research potential. The candidate is expected to be able to work well independently and cooperatively with a team and to communicate the results of his/her research both orally and in writing. Demonstrated written and oral communication skills are highly desirable. Questions regarding this position can be addressed to Dr. Savin at email@example.com. Applicants should submit a cover letter, curriculum vitae (including a list of publications) and statement of past research. In addition, they should arrange to have three letters of reference sent directly by the writers to Dr. Savin. Applications will be considered only after all of the requested material has been received. Applications and letters should be submitted by email to firstname.lastname@example.org. Screening of applicants will begin immediately and will continue until the position has been filled.Columbia is an Equal Opportunity Employer/Disability/Veteran Employer. CAL values a diverse workforce and culture of inclusion, which are keys to attracting and engaging the brightest minds to further our record of scientific excellence and groundbreaking innovations. Applications from women, minorities, and other underrepresented groups are strongly encouraged.