Required Qualifications: (as evidenced by an attached resume) PhD (or foreign equivalent) in Physics, Astronomy, or a closely related field (completed by the start date). Demonstrated record of research and first-author publications in CMB cosmology; proficiency in Python and scientific computing, including high-performance computing; strong scientific writing and communication skills; ability to work collaboratively in a large, multi-institution scientific collaboration. Preferred Qualifications: Direct experience with CMB-HD simulations, forecasting, and analysis pipelines; familiarity with CMB instrument parameters (noise levels, beams, frequency coverage, detector and readout systematics) and how they affect science sensitivity; experience coordinating multi-author papers; experience mentoring graduate students. Brief Description of Duties: The Postdoctoral Associate will assist Dr. Neelima Sehgal in the department of Physics and Astronomy. The incumbent will conduct research and ensure that all experiments are appropriately conducted following the policies and procedures of Stony Brook University. The Postdoctoral Associate will lead the assembly and writing of the CMB-HD instrument design white paper, a comprehensive, quantitative document defining the CMB-HD instrument (telescope optics, detector arrays, cryogenic readout electronics, and systematic error budget) that is a prerequisite for future construction proposals to DOE and NSF. Working closely with the PI and with instrument collaborators at Cornell, SLAC, the University of Pennsylvania, and NIST Boulder, the postdoc will coordinate contributions, translate CMB-HD's science goals into quantitative instrument requirements, and use simulation and forecasting tools to show how design choices affect projected science sensitivity. The postdoc will also carry out independent research in CMB cosmology related to CMB-HD, publish results in peer-reviewed journals, present at collaboration meetings and conferences, and help mentor graduate students in the research group. ● Coordinate and write the CMB-HD instrument design white paper: define its structure and schedule, draft and edit sections, integrate contributions from instrument collaborators (Cornell, SLAC, UPenn, NIST Boulder), and lead it through collaboration review to public release. ● Science requirements and forecasting: translate CMB-HD science goals into quantitative instrument requirements (noise, resolution, frequency coverage) and run forecasts showing how design choices affect projected science sensitivity. ● Simulations and systematics: extend the CMB-HD sky simulation and analysis pipelines to include instrument effects (beams, noise, readout non-idealities) and develop the systematic error budget for the white paper. ● Dissemination: publish results in peer-reviewed journals, present at collaboration meetings and conferences, and release software and data products publicly. ● Mentor graduate and undergraduate students in the research group and assist with collaboration coordination (meetings, shared documentation). ● Other duties as assigned. Special Notes: The Research Foundation of SUNY is a private educational corporation. Employment is subject to the Research Foundation policies and procedures, sponsor guidelines and the availability of funding. FLSA Exempt position, not eligible for the overtime provisions of the FLSA. Minimum salary threshold must be met to maintain FLSA exemption. Visit The Office of Postdoctoral Affairs to learn more about our postdoctoral community. Resume/CV and cover letter should be included with the online application. Stony Brook University is committed to excellence in the creation of an inclusive learning and working environment. All qualified applicants will receive consideration for employment without regard to race, color, national origin, religion, sex, pregnancy, familial status, sexual orientation, gender identity or expression, age, disability, genetic information, veteran status, and all other protected classes under federal or state laws. Stony Brook University is dedicated to providing equal employment opportunities to all applicants, including individuals with disabilities. If you require a reasonable accommodation to participate in the application, interview, or hiring process, please request one by contacting [email protected]. We will consider accommodation requests in compliance with applicable laws. This process is independent and does not require any voluntary self-identification of disability status. Please include the position title and position number (if known) in your message. In accordance with the Title II Crime Awareness and Security Act a copy of our crime statistics can be viewed here. Visit our WHY WORK HERE page to learn about the total rewards we offer. SUNY Research Foundation: A Great Place to Work.