New

Research Scientist

California Institute of Technology
vision insurance, parental leave, paid time off, sick time, tuition reimbursement
United States, California, Pasadena
Oct 09, 2025
Caltech is a world-renowned science and engineering institute that marshals some of the world's brightest minds and most innovative tools to address fundamental scientific questions. We thrive on finding and cultivating talented people who are passionate about what they do. Join us and be a part of the diverse Caltech community. Job Summary The research scientist will actively engage with the SPHEREx mission's core science programs. They will be working with other members of the SPHEREx team on the development of the software pipeline, particularly the Extra-galactic Background Light modeling and interpretation pipeline. More information about SPHEREx can be found athttps://spherex.caltech.edu. Essential Job Duties The candidate will develop the infrastructure pipeline required to interpret the SPHEREx extra-galactic background light measurements. In particular, the candidate will develop and validate a fast model which is adequate for full sampling of the associated likelihood function and discuss its multiple possible interpretations. The candidate is expected to be fully integrated in the SPHEREx science team, collaborate closely with other team members and to mentor more junior members Expertise in modeling and interpretation of diffuse background light measurement, epoch of reionization, diffuse backgrounds, cross-correlations, cosmological simulations, and pipeline development is especially valued. Basic Qualifications Ph.D. (or equivalent) in astrophysics, cosmology, or a related field. Proven track record of research excellence demonstrated through publications and projects. Strong communication and collaboration skills. Preferred Qualifications Strong record of original research in large-scale structure or cosmology and SkySimulator. Demonstrated experience in software development for scientific analysis. Required Documents Resume. Cover Letter. Hiring Range $59,800 - $85,900 Per Year The salary of the finalist(s) selected for this role will be set based on a variety of factors, including but not limited to, internal equity, experience, education, specialty and training. As one of the largest employers in Pasadena, CA, Caltech is committed to providing comprehensive benefits to eligible employees and their eligible dependents. Our benefits package includes competitive compensation, health, dental, and vision insurance, retirement savings plans, generous paid time off (vacation, holidays, sick time, parental leave, bereavement, etc.), tuition reimbursement, and more. Non-benefit eligible employees will have access to some benefits such as onsite counseling and sick time. Learn more about our benefits and staff perks. EEO Statement We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity, or national origin, disability status, protected veteran status, or any other characteristic protected by law. Caltech is a VEVRAA Federal Contractor. To read more Equal Employment Opportunity (EEO) go to eeoc_self_print_poster.pdf. Disability Accommodations Caltech complies with the Fair Employment and Housing Act (FEHA) and the Americans with Disabilities Act (ADA). We consider reasonable accommodation measures that may be necessary for eligible applicants and employees to perform the essential functions of a position. If you would like to request an accommodation to complete this application, interview, or otherwise participate in the employee selection process, please contact Caltech Recruiting at employment@caltech.edu. Additionally, if you do not meet the basic qualifications of a role but believe you can perform the essential functions of the job with reasonable accommodation, please reach out to Caltech Recruiting at employment@caltech.edu.