CalTech - California Institute of Technology Jobs

CalTech - California Institute of Technology

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"Research Scientist"

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Research Scientist

Staff / Administration

2026-05-17

Location

Pasadena

Caltech

Type

Full-time Term

Salary

$79,700 - $115,000 Per Year

Required Qualifications

Ph.D. in astrophysics, cosmology, or related field
Experience in large-scale structure or cosmology data analysis
Software development for scientific analysis

Research Areas

Astrophysics
Cosmology
Photometric Accuracy
SPHEREx Data Analysis
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Research Scientist

Research Scientist

Job Category: Fulltime Term
Exempt/Overtime Eligible: Exempt
Benefits Eligible: Benefit Based

Job Summary

This position is to develop software tools to systematically measure and characterize photometric accuracy in SPHEREx data. SPHEREx requires a high-level of photometric reproducibility to carry out its cosmology science, where accuracy on large spatial scales is critically important. The tools will assess gain effects over the instrumental field of view in forced photometry, and overall photometric stability.

Essential Job Duties

The applicant will operate with the level 1-3 data pipeline developed at IPAC to measure photometric repeatability using measurements of astronomical sources. The developed tools will quantitatively assess errors arising from astrometry, flat-field determinations, PSF uncertainties, and gain drifts. The applicant will also develop algorithms for quantifying best-fit flux and errors with outlier rejection in the all-sky survey data.

Basic Qualifications

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

Preferred Qualifications

  • Strong prior experience in large-scale structure or cosmology data analysis.
  • Demonstrated experience in software development for scientific analysis

Required Documents

  • CV

Hiring Range

$79,700 - $115,000 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 this Research Scientist position?

The minimum requirement is a Ph.D. (or equivalent) in astrophysics, cosmology, or a related field. Preferred qualifications include strong prior experience in large-scale structure or cosmology data analysis and demonstrated software development for scientific analysis. Explore more research jobs at Research Jobs or Postdoc Opportunities.

🔬What are the essential job duties for this role?

Develop software tools to measure and characterize photometric accuracy in SPHEREx data. Operate with level 1-3 data pipelines at IPAC to assess photometric repeatability, errors from astrometry, flat-field, PSF uncertainties, and gain drifts. Create algorithms for flux fitting and outlier rejection in all-sky survey data. Check similar roles in Research Assistant Jobs.

💰What is the salary and benefits for this Research Scientist job at Caltech?

The hiring range is $79,700 - $115,000 per year, based on experience, education, and internal equity. Benefits include health, dental, vision insurance, retirement plans, paid time off, tuition reimbursement, and more. Non-benefit eligible access onsite counseling. Learn about Professor Salaries and University Salaries for context.

📄What documents are required for the application?

Submit a CV as the required document. Tailor your academic CV for astrophysics and cosmology roles. Use our free resume template and free cover letter template to strengthen your application for this Caltech position.

📍Where is the position located and what is the employment type?

Located in Pasadena, CA at Caltech. This is a full-time term position, exempt from overtime, with benefit-based eligibility. Ideal for PhD researchers in cosmology. View Higher Ed Jobs in Pasadena or explore Research Jobs.

When is the application deadline for this SPHEREx Research Scientist role?

Applications are open until the expiration date of May 17, 2026. Apply early for Caltech research scientist opportunities in astrophysics and cosmology. Stay updated via University Jobs.
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