Staff Scientist

Caltech; Pasadena (CA); On-site; USD 78,000 - 120,000; Full time

Benefits offered by this job

Tuition reimbursement

Job summary

Caltech IPAC seeks a scientist to enhance data ingestion accuracy and rate, validating data and exploring extragalactic archive science. You will contribute to NED’s mission, joining a team of scientists and engineers to deploy AI-enhanced validation across large, heterogeneous datasets.

The role emphasizes processing, cross-matching validation, and developing scalable tools while collaborating with researchers to enable science use cases within NASA’s strategic framework.

Qualifications

• PhD in astronomy, physics, computer science or a related field.
• Two years of post-PhD experience in astronomy.
• Knowledge of astronomical coordinate systems, nomenclature, astrometry, photometry, galaxy classifications, and observational techniques.
• Demonstrated experience in at least one stage of the production, validation, or analysis of astronomical data sets.
• Experience in computer programming.

Responsibilities

• Apply NED’s current methods for locating, extracting, transforming, and integrating data into the system.
• Perform science-based validation of NED data, including vetting the results of automated cross-matching software.
• Develop new tools (e.g., powered by AI) for validating data quality on larger scales from heterogeneous data sources
• Work with scientists and engineers on the team to develop and apply new tools to accelerate the flow and fusion of data into NED.
• Respond to user support requests related to the scientific content of NED.
• Help design and validate NED services and interfaces to enable science use cases for NED data.
• Conduct research, including archival research exploiting NED’s content and data synthesis.

Skills

Data science

Programming experience

Research skills

Machine learning

Python

Extragalactic astronomy publications

Large datasets

Education

PhD in astronomy/physics/CS

Tools

Python

Job description

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

IPAC ( NED’s mission is to accelerate astrophysical discovery within NASA’s strategic plan by capturing the most reliable census of extragalactic objects, where fundamental object attributes and multi-wavelength data from the published literature and catalogs are joined. NED currently provides data for more than 1.1 billion objects, accessible to researchers and the public worldwide through user-friendly interfaces and programmatic query tools. NED also offers a Gravitational Wave Followup ( This is an immediate opening for a scientist who is excited by the prospect of monitoring data quality across our ingestion flows and services, performing database analysis to ensure internal consistency, and exploring new extragalactic archive science enabled by NED. The primary responsibility of this position is to contribute to the NED mission by enhancing the accuracy and rate of data ingestion, particularly in view of the rapidly growing volume of data in the astrophysics literature.)

Essential Job Duties

• Apply NED’s current methods for locating, extracting, transforming, and integrating data into the system.
• Perform science-based validation of NED data, including vetting the results of automated cross-matching software.
• Develop new tools (e.g., powered by AI) for validating data quality on larger scales from heterogeneous data sources
• Work with scientists and engineers on the team to develop and apply new tools to accelerate the flow and fusion of data into NED.
• Respond to user support requests related to the scientific content of NED.
• Help design and validate NED services and interfaces to enable science use cases for NED data.
• Conduct research, including archival research exploiting NED’s content and data synthesis.

Basic Qualifications

• PhD in astronomy, physics, computer science or a related field.
• Two years of post-PhD experience in astronomy.
• Knowledge of astronomical coordinate systems, nomenclature, astrometry, photometry, galaxy classifications, and observational techniques.
• Demonstrated experience in at least one stage of the production, validation, or analysis of astronomical data sets.
• Experience in computer programming.

Preferred Qualifications

• Two years or more of experience in computer programming as a research astronomer or data scientist.
• Peer-reviewed publications in areas of extragalactic astronomy that are synergistic with the functional work on NED.
• Experience with Machine Learning or Artificial Intelligence.
• Proficiency in Python.
• Experience manipulating large, diverse and complex data sets.
• Experience with large databases.

Required Documents

• Full resume or CV.
• Cover letter.
• Names and contact information for 3 professional references.

Application Details

• Complete applications submitted by December 11, 2026 will receive full consideration, but review of applications will continue until a suitable candidate has been identified.
• This is an on-site position at the Caltech campus in Pasadena, California. Remote workdays are typically allowed 1-2 days per week after training.

Application Details

IPAC is located on the campus of the California Institute of Technology in Pasadena, California, near the foothills of the San Gabriel Mountains. Caltech is a world-renowned science and engineering research and education institution, as well as a thriving community of curious and passionate individuals who collaborate to understand and solve complex scientific and societal challenges. Caltech also operates large-scale research facilities such as the Palomar Observatory, Keck Observatory, and LIGO, which in 2016 observed gravitational waves from colliding black holes for the first time.

Hiring Range

$78,000 - $120,000 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

EEO Statement

Caltech is an equal opportunity employer and, as a federal contractor, takes affirmative action to employ qualified individuals with disabilities and protected veterans. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status, or any other characteristic protected by law.

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

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