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Scientific Researcher

Caltech
Caltech Salary
Pasadena, CA Full Time
POSTED ON 5/13/2026
AVAILABLE BEFORE 6/11/2026
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

PhD. candidate to assist with isotope incubation experiments, FISH-nanoSIMS analysis, and data processing for single cell isotope analysis. Candidate will also be expected to train students how to work with methane-oxidizing incubations and prepare and analyze samples on the nanoSIMS.

Essential Job Duties

  • Establish and maintain time course stable isotope probing experiments.
  • Sample preparation for FISH-nanoSIMS analysis and troubleshooting.
  • Fluorescence in situ hybridization analysis, sample mapping.
  • Prepare and analyze samples on the nanoSIMS
  • Data analysis and compilation
  • Train students on experimental set up, sample preparation, FISH-nanoSIMS analysis data analysis
  • Other duties as assigned.

Basic Qualifications

  • PhD in Environmental Science or Geobiology.
  • Five (5) year’s experience with FISH-nanoSIMS, stable isotope probing, and microbial sample preparation.
  • Understanding of fluorescence microscopy, nanoSIMS, image data processing, and statistical analyses.
  • Knowledge of fluorescence microscopy and FISH, anaerobic cultivation, stable isotope labeling, embedding and thin sectioning, nanoSIMS operation, nanoSIMS and microscopy data processing.

Preferred Qualifications

  • Experience with anaerobic methane oxidizing enrichment cultures, and experience conducting research at sea.

Required Documents

  • Resume.

Hiring Range

$59,800 to $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

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

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

Salary : $59,800 - $85,900

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