Principal Scientist Jobs in California

A Principal Scientist in the chemistry industry is responsible for conducting complex research, developing new procedures, and overseeing a team of scientists to ensure all projects are completed to a high standard. They typically perform experimental tests and analyses, interpreting and presenting results, and preparing research reports and scientific papers. Their work is instrumental in contributing to the development of new products, technologies, or intellectual property. They often work closely with other departments such as Regulatory Affairs, Quality Control, and Manufacturing to ensure all scientific operations meet the necessary standards and regulations.

Important skills for a Principal Scientist include leadership, excellent written and oral communication abilities, strong analytical skills, and the ability to work well in teams. They should have a thorough understanding of various scientific techniques and principles, and be adept at problem-solving. The minimum requirement for this position is typically a PhD in Chemistry or a related field, with substantial experience in the industry. Certifications that can add value include Certified Professional Chemist (CPC) or Certified Clinical Research Professional (CCRP). A person might work as a Research Scientist, Senior Scientist, or Project Leader before moving into the role of a Principal Scientist.

1-15 of 82 Jobs

Principal Scientist

  • Envista
  • Pomona, CA
  • 14 hours ago
  • Pomona, CA
  • 14 hours ago

The Principal Scientist serves as a subject matter expert and technical leader, driving innovation and high-impact research and development initiatives across dental chemical consumables....

In Person

Principal Scientist Lead Discovery and Targeted Protein Degradation Biochemistry

  • Amgen
  • Thousand Oaks, CA
  • 16 hours ago
  • Thousand Oaks, CA
  • 16 hours ago

Principal Scientist Lead Discovery and Targeted Protein Degradation Biochemistry What you will do Lets do this. Lets change the world....

In Person

MSAT Associate Principal Scientist - Purification

  • Lonza
  • Vacaville, CA
  • 1 day ago
  • Vacaville, CA
  • 1 day ago

Location: Vacaville, California This is a fully sitebased role. Working together in person supports close, realtime collaboration and the technical precision needed to manufacture medicines to the...

In Person

Associate Principal Scientist, Respiratory Discovery

  • Merck Company
  • South San Francisco, CA
  • 1 day ago
  • South San Francisco, CA
  • 1 day ago

We are seeking an Associate Principal Scientist with strong expertise in respiratory biology and translational research to contribute to target discovery, validation, and translational biology strategy...

In Person

Senior Principal Scientist, Neuroscience, Clinical Biomarker, Late Phases, Translational Medicine

  • Bristol Myers Squibb
  • Brisbane, CA
  • 1 day ago
  • Brisbane, CA
  • 1 day ago

R1601688 : Senior Principal Scientist, Neuroscience, Clinical Biomarker, Late Phases, Translational Medicine...

Hybrid

Principal Scientist, Protein Sciences, Analytical Characterizations

  • Valid8 Financial, Inc.
  • San Francisco, CA
  • 2 days ago
  • San Francisco, CA
  • 2 days ago

Principal Scientist, Protein Sciences, Analytical Characterizations September 2025 Department: Technology Position Summary: TCG Labs-Soleil is seeking a highly experienced and driven Principal Scientist...

In Person

Principal Scientist/Associate Director, Proteomics (On-Site)

  • Neomorph
  • San Diego, CA
  • 2 days ago
  • San Diego, CA
  • 2 days ago

The successful candidate will combine deep technical expertise in modern LC-MS proteomics with a strong understanding of assay development, quantitative rigor, and platform growth....

In Person

Principal Scientist, Computational Chemistry

  • Eikon Therapeutics, Inc.
  • Millbrae, CA
  • 4 days ago
  • Millbrae, CA
  • 4 days ago

Position We seek a Principal Scientist in Computational Chemistry with a demonstrated ability of successfully applying in silico technologies to drive the discovery of quality lead-like molecules against...

In Person

Principal Scientist, Pharmaceutical Development

  • Neurocrine
  • San Diego, CA
  • 5 days ago
  • San Diego, CA
  • 5 days ago

Who We Are: Neurocrine Biosciences is a leading biopharmaceutical company with a simple purpose: to relieve suffering for people with great needs. We are dedicated to discovering, developing and...

In Person

Principal Scientist, Analytical Development

  • Neurocrine
  • San Diego, CA
  • 5 days ago
  • San Diego, CA
  • 5 days ago

Experience in method transfer in Analytical Chemistry OR MS/MA in Analytical Chemistry or related discipline and 10+ years of experience OR PhD in Analytical Chemistry or related discipline and 4+ years...

In Person

Principal Scientist, Analytical Ops

  • Gilead Sciences
  • Oceanside, CA
  • 5 days ago
  • Oceanside, CA
  • 5 days ago

Job Description Principal Scientist in Biologics Analytical Development (Pivotal and Commercial)....

In Person

Principal Scientist, Amazon Health Science & Analytics

  • Amazon.com Services LLC
  • Santa Clara, CA
  • 5 days ago
  • Santa Clara, CA
  • 5 days ago

We are looking for a senior AI/ML researcher who can architect and guide a long-horizon ML strategy for a healthcare-focused organization building a durable, domain-specific healthcare foundation...

In Person

Process Development Principal Scientist

  • Amgen
  • Thousand Oaks, CA
  • 5 days ago
  • Thousand Oaks, CA
  • 5 days ago

Chromatography and related separation techniques including RP-HPLC (reversed phase high-performance liquid chromatography) and GC (gas chromatography); 5....

Hybrid

Principal Scientist, Analytical Sciences

  • Varda
  • El Segundo, CA
  • 5 days ago
  • El Segundo, CA
  • 5 days ago

About this Role Our pharmaceutical R&D team is looking for a highly motivated and creative Principal Scientist, Analytical Sciences who will lead efforts in improving therapeutics with microgravity....

In Person

Principal Scientist, Purification Process Development

  • Denali Therapeutics
  • South San Francisco, CA
  • 6 days ago
  • South San Francisco, CA
  • 6 days ago

Design and execute lab-scale chromatography and filtration studies to inform and support large scale process decisions Maintain existing workflows to provide purification support for cell line and cell...

In Person

Demographic Data for California

Moving to California? Find some basic demographic data about California below.


Local
National
39,536,271
996,598

Principal Scientist Online Courses and Training Opportunities

iHireChemists curates thousands of courses in order to recommend the best ones to help further your career. If you register for a course using the links on our site, we may receive a small commission.
Data Scientist Nanodegree Program
This advanced Nanodegree prepares you to tackle data science at scale. Work with AI best practices, build production-ready projects, and gain the confidence to lead data-driven solutions. Our...
Software Engineering for Data Scientists Course
Prepare for advanced data science work with software engineering best practices. Explore OOP, testing, areproducibility, and build a FastHTML dashboard that makes machine learning insights...
Category Theory for Scientists
The goal of this class is to prove that category theory is a powerful language for understanding and formalizing common scientific models. The power of the language will be tested by its ability...

Title Synonyms

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Salary for Principal Scientist Jobs in California

Estimated salary range based on data from US Bureau of Labor Statistics (BLS) and iHireChemists research efforts.

Licensing / Certification

Required or preferred licenses and certifications for Principal Scientist positions.



Highest Education Level

Principal Scientists in California offer the following education background
Doctorate Degree
47.7%
Bachelor's Degree
28.2%
Master's Degree
22.6%
Associate's Degree
0.6%
High School or GED
0.5%
Vocational Degree or Certification
0.3%
Some College
0.1%
Some High School
0.0%

Average Work Experience
Here's a breakdown of the number of years' experience offered by Principal Scientists in California
None
32.8%
Less than 1 year
18.1%
1-2 years
16.9%
4-6 years
11.4%
6-8 years
7.8%
2-4 years
7.0%
10+ years
6.0%


Other Career Titles

Here are some other career titles that require similar skills



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