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CalTech - California Institute of Technology Jobs

CalTech - California Institute of Technology

Senior Scientist

Closes:

Salary: $138,000 – $165,000 per year

68

Position Description

Senior 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

LIGO Laboratory (the Laser Interferometer Gravitational-wave Observatory) seeks a highly motivated and skilled Senior Scientist to join its team with experience in research, design and problem solving in a collaborative environment. LIGO Laboratory is a National Science Foundation major facility dedicated to observing gravitational-waves. Jointly operated by the California Institute of Technology and Massachusetts Institute of Technology, the LIGO Laboratory operates world-leading observatories near Richland, WA and Baton Rouge, LA as well as R&D centers on the Caltech and MIT campuses. The LIGO Laboratory’s mission spans a broad and vibrant array of activities related to gravitational-wave physics and astronomy, including detector operations, R&D toward detector improvements, gravitational-wave astrophysics, observatory operations, and education and public outreach. For more information, please visit the Laboratory website at www.ligo.caltech.edu.

This position is an in-person role located in Pasadena, California.

The successful candidate will report to the most senior engineers at LIGO Lab. Given how important core optics and optical coatings are for LIGO today and LIGO tomorrow this is an important position and offers the individual an important role within LIGO Lab. This is an exciting opportunity to work with world-leading scientists and engineers on cutting-edge science. This selected candidate will be a vital part of our talented team, helping to lead LIGO into the future.

A full list of the job duties including opportunities for creativity, direction and planning are listed below.

Essential Job Duties

  • Perform optical design and analysis.
  • Conducting research on optical designs and optical coatings.
  • Direct and assist with testing, analysis, and oversight of precision optical metrology instruments to test hypotheses and gather data.
  • Support the operation and maintenance of world-class, precision optical characterization and metrology facilities.
  • Develop optical specifications, policies, and procedures.
  • Provide technical expert support for multi-million-dollar contracts with optics and coating fabricators providing cutting edge technology that enables LIGO’s extreme sensitivity.
  • Provide ongoing modifications and solution alternatives to meet current and future research and observatory requirements
  • Conceptualize the design and direct the development of enhanced measurement techniques and improved optics.
  • Diagnose and design solutions and modifications in response to optic, optical equipment or component malfunctions and failures.
  • Support the current lead with overseeing the Caltech Optical Sciences Group, including technical, budget, resource, and task management
  • Provide technical guidance as well as technical oversight to matrixed engineering and science staff working on optics, opto-electronics, and interferometry.
  • Communicate (written and verbal) technical progress and budget/resource status on various projects, internally within the organization and externally to parties outside the organization
  • Over time, take on people-management responsibilities and coach junior staff, encourage professional development, conduct annual reviews and nurture the team.
  • Other Duties as Assigned

Basic Qualifications

  • BS in Physics, Astronomy or Engineering.
  • A minimum of 10 years of experience with high precision optics.
  • A minimum of 8 years of experience in mentoring junior scientists and/or students.
  • Comprehensive knowledge of optical design, analysis, and testing for interferometry.
  • Experience directly using scientific observation and analysis, creative thinking, and method development to solve problems related to optics and optical systems.
  • Significant experience with precision optical metrology.
  • Significant experience with technical specifications and support for contracting optical fabrication.

Preferred Qualifications

  • Masters or a PhD. in a related field.
  • Significant experience in technical supervision of a group of 5 or more staff.
  • Experience in project management including use of MS Project for project management and planning.
  • History of working in and with International Collaborations with Optical scientists and other professionals, including mechanical, electrical, and computer engineers, physicists, and research scientists, to invent original concepts for optical products and improve existing devices.

Required Documents

  • Resume.
  • Cover Letter is a required document for this position. Please summarize your relevant experience and your interest in working at LIGO Lab.

Hiring Range

$138,000 - $165,000 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.

Job details

Title
Senior Scientist
Employer
CalTech - California Institute of Technology
Location
Pasadena, California
Published
Oct 26, 2026
Closes:
Dec 25, 2026
Job type
Full time, Staff / Administration
Field
Laboratory and Research
Salary

Salary: $138,000 – $165,000 per year

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Frequently Asked Questions

📋What is the Senior Scientist?

This listing is for Senior Scientist at CalTech - California Institute of Technology.

📍Where is this role located?

The listed location is Pasadena, California.

💰What is the salary?

The listed salary is $138,000 – $165,000 yearly.

📅When do applications close?

Applications close on Dec 25, 2026.

💼What type of appointment is this?

The listed type is Full time.

📝How do I apply?

Use the Apply Now button on this listing to submit your application.

About the employer

CalTech - California Institute of Technology Jobs

CalTech - California Institute of Technology

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AcademicJobs.com is the premier platform to discover Caltech jobs, connecting talented professionals with exceptional career opportunities at one of the world’s leading institutions for science and technology. The California Institute of Technology (Caltech), located in Pasadena, California, is renowned for its groundbreaking research and academic excellence, making Caltech uni jobs highly sought after by academics and professionals globally. Caltech careers offer an innovative and collaborative environment for individuals to excel. Caltech university careers span a diverse range of disciplines, reflecting the institute’s key areas of academic specialization, including physics, astronomy, engineering, computer science, and biology. Employment Caltech includes roles such as professors, research scientists, postdoctoral scholars, and professional staff positions, catering to various expertise levels. For those pursuing Caltech jobs Pasadena, the institute’s vibrant campus provides a dynamic workplace in a sunny, culturally rich region near Los Angeles. Caltech uni vacancies and job postings are showcased on AcademicJobs.com, where candidates can explore opportunities in cutting-edge research, teaching, and administrative roles. Jobs at Caltech cover fields like quantum computing, planetary science, and bioengineering, aligning with the institute’s mission to advance scientific discovery and solve global challenges. Each Caltech vacancy is an opportunity to contribute to pioneering projects within a world-class scientific community. Caltech Employment Opportunities are extensive, with Caltech job Opportunities ranging from academic faculty to technical and operational roles. A Caltech Career offers the chance to join an institution that values innovation, rigor, and interdisciplinary collaboration. Caltech uni openings are regularly updated on AcademicJobs.com, ensuring access to the latest Caltech vacancies. Jobs at Caltech uni are ideal for those passionate about pushing the boundaries of science and technology. Caltech job postings include positions in chemistry, data science, and professional services such as IT and research administration. Caltech Employment through AcademicJobs.com connects talented individuals with Caltech Uni vacancies, providing a seamless pathway to join a prestigious institution driving global scientific progress.

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