CalTech - California Institute of Technology Jobs

CalTech - California Institute of Technology

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"Research Scientist"

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Research Scientist

2026-02-17

Location

Pasadena, CA

Caltech

Type

Full-time Regular Exempt

Salary

$60,000 - $106,000 Per Year

Required Qualifications

Ph.D. in astrophysics, cosmology, or related field (or in progress)
Strong record in large-scale structure or cosmology (preferred)
Experience in software development for scientific analysis (preferred)

Research Areas

SPHEREx Cosmology
Large-scale structure and clustering
Higher-order statistics
Systematic error mitigation
Cosmological simulations
Pipeline development and validation
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Research Scientist

Position Description

Research Scientist

Job Category
Fulltime Regular

ExemptOvertimeEligible
Exempt

Benefits Eligible
Benefit Based

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

Research Scientist Position - SPHEREx Cosmology (Caltech) The Caltech SPHEREx team is seeking a research scientist to contribute to the scientific analysis of data from the SPHEREx mission. The successful candidate will work closely with the SPHEREx Science Team and is expected to become a full member of the team by SPHEREx first major release, participating actively in the mission’s core science programs. More information about SPHEREx can be found at https://spherex.caltech.edu.

Essential Job Duties

The primary focus of the position is the development of high-level cosmological analyses necessary to extract scientific results from SPHEREx’s spectroscopic galaxy catalog. This includes (as needed) methodological and theoretical development, as well as significant software implementation. Expertise in one or more of the following areas is especially valued: large-scale structure and clustering measurements, higher-order statistics, systematic error mitigation, cosmological simulations, and pipeline development and validation.

The candidate will integrate and work closely with the SPHEREx team so good collaboration skills are important for this job.

Basic Qualifications

  • Ph.D. (or equivalent), or PhD in progress, in astrophysics, cosmology, or a related field.

Preferred Qualifications

  • Strong record of original research in large-scale structure or cosmology.
  • Demonstrated experience in software development for scientific analysis.

Required Documents

Hiring Range

$60,000 - $106,000 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.

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Frequently Asked Questions

🎓What are the basic qualifications for the Research Scientist position at Caltech?

The basic qualification is a Ph.D. (or equivalent) or Ph.D. in progress in astrophysics, cosmology, or a related field. Preferred: strong research record in large-scale structure or cosmology and experience in software development for scientific analysis. Learn more about writing a winning academic CV.

🔬What are the essential duties for this SPHEREx Cosmology Research Scientist role?

Primary focus: develop high-level cosmological analyses from SPHEREx’s spectroscopic galaxy catalog, including methodological/theoretical development and software implementation. Expertise valued in large-scale structure, clustering measurements, higher-order statistics, systematic error mitigation, cosmological simulations, and pipeline development. Collaboration with SPHEREx team required. Explore research jobs.

📝How to apply for the Caltech Research Scientist position?

Submit resume and cover letter. Reference letters sent directly to Nancy Rappard (nrappard@caltech.edu) with subject "SPHEREx Cosmology position". Deadline: Feb 17, 2026. Tips at excel as a research assistant or free cover letter template.

💰What is the salary and benefits for this full-time role?

Salary range: $60,000 - $106,000 per year, based on experience/education. Benefits: health/dental/vision insurance, retirement, PTO (vacation/holidays/sick/parental), tuition reimbursement. Professor salaries and perks detailed. Benefit-based, exempt position.

🌍Does this position offer visa sponsorship or relocation?

No mention of visa sponsorship in posting; assume not available. Location: Pasadena, CA at Caltech. Strong collaboration skills needed. Check postdoc jobs or research jobs for similar opportunities. Ph.D. candidates encouraged.
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CalTech - California Institute of Technology

Pasadena
Academic / Faculty
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