4,185 Results for

Research Scientist Jobs in California

Jobs

Lead Research Scientist Visa

Foster City, CA

$215,300–$344,600 / year

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. For roles located in the US, the estimated salary range for this position is $215,300.00 to $ 344,600.00 USD per year, which may include potential sales incentive payments (if applicable).

9 days ago

AI Research Scientist, Agentic Systems (Remote) Crowdstrike

Sunnyvale, CA

Remote

$120,000–$180,000 / year

Post-train LLMs and agents — supervised fine-tuning and reinforcement learning (RLHF/RLAIF, PPO/GRPO/DPO, reward modeling) — to automate analyst procedures and improve reliability on real security tasks. You'll work where Machine Learning, Big Data, and Cybersecurity converge — training models, building AI agents, and rigorously measuring whether they work — on data and problems you won't find anywhere else.

1 day ago

Staff Research Scientist, Intern - PhD Quantum Visa

Foster City, CA

$66–$73 / hour

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. Knowledge in one or more areas: Quantum algorithms and applications, applied quantum physics, quantum machine learning, optimization, quantum secuirty, communications, networking or simulations.

6 days ago

Staff Research Scientist Visa

Foster City, CA

$169,100–$270,800 / year

Key Responsibilities: Conduct research in Generative AI , with focus areas including agentic coding, agentic commerce, AI agents, large language models, reasoning, planning, and retrieval-augmented generation. Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

9 days ago

Pediatrics Developmental & Stem Cell Biology - Assistant Professor (Cedars-Sinai Research Scientist I) Cedars-Sinai Health System

Los Angeles, CA

$71,094–$235,019 / year

Examples include investigating how high-fat diets may promote liver cancer as well as the effects of near weightlessness on iPSCs in conjunction with NASA, connections among diabetes and chronic pancreatitis and pancreatic cancer, and the genetic underpinnings of disease, exploiting the potential of stem cells, leveraging nanotechnology, parsing big data, and assessing how gender and metabolism impact health. The Department of Pediatrics at Cedars-Sinai Guerin Children’s is recruiting an independent Research Scientist faculty member (Assistant Professor faculty rank) to join a new Center specializing in Developmental and Stem Cell Biology.

6 days ago

Polymer Materials Scientist (Must have rubber or silicone experience) Jobot

Riverside, CA

$125,000–$170,000 / year
Quick Apply

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We offer a setting where your impact is visible, your ideas are heard, and your leadership helps guide long-term growth—making it an ideal place for those seeking both responsibility and meaningful influence in a stable, essential-services business.

5 days ago

Computer Scientist V - Senior Software Systems Engineer JT4 LLC

Edwards AFB, CA

$140,000–$190,000 / year

Communication excellence: Ability to communicate both verbally and in writing to effectively convey complex technical information to diverse audiences including vendors, subcontractors, customers, engineering teams, non-technical stakeholders and JT4 leadership. Project Management: Assist IPT project manager on overseeing multiple development projects simultaneously with duties including but not limited to: identifying potential risks, evaluating timelines and resources and ensuring all technical requirements are met.

9 days ago

Associate Scientist #26-27332 US Tech Solutions, Inc.

South San Francisco, CA

Quick Apply

Follow experimental protocols carefully, use appropriate controls, and maintain accurate sample identities and records, including when handling large numbers of samples. Use spreadsheets, electronic laboratory notebooks, and presentation software to document experiments, track samples, organize data, and communicate results.

7 days ago

Principal Applied Scientist - CoreAI Microsoft

Mountain View, CA

$142,800–$274,800 / year

Bachelors Degree in Computer Science, Computational Linguistics, or related field AND 6+ years related experience (e.g., statistics, predictive analytics, research) OR Masters Degree in Computer Science, Computational Linguistics or related field AND 4+ years related experience (e.g., statistics, predictive analytics, research). There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year.

30+ days ago

Scientist 2, Biology Kaygen Inc.

Milpitas, CA

$50–$62 / hour
Temporary
Contractor
Full time
Quick Apply

Shift: ['• Minimum of bachelor’s degree in Life Science • Minimum 5 years of related experience in a research setting, clinical/diagnostic laboratory, or pharmaceutical/biotechnology R&D environment • Strong understanding of immunology, flow cytometry, assay development or related cell-based research technologies • Experience authoring and reviewing technical documentation • Demonstrated ability to lead projects independently and collaborate effectively across functions • Excellent written and verbal communication skills']. Start: ['• Experience with flow cytometry-based diagnostic products • Experience supporting regulatory inspections and quality audits • Familiarity with design controls, risk management, verification/validation, and change control processes • Strong immunology, cancer biology and cell biology knowledge • Experience in reagent and assay development • Experience with product lifecycle management'].

9 days ago

Associate Scientist, Analytical - Contract TalentBurst, Inc.

Aliso Viejo, CA

$26.59–$33.22 / hour
Quick Apply

Operate and maintain analytical equipment such as HPLC/UPLC, FTIR, Dissolution, UV-Vis Spectrophotometer etc., and other common analytical instruments used to determine potency, purity, and in-vitro performance of drug substance and drug product. Excellent communication skills and be comfortable in a team-oriented environment Bachelors degree in Analytical Chemistry, Pharmaceutical Sciences, Chemical Engineering, or other relevant scientific field, and a minimum of 1-2 years related experience.

3 days ago

Scientist - Cell Biology and Assay Development - Onsite Genesis10

Thousand Oaks, CA

Temporary
Contractor
Full time
Quick Apply

The successful candidate will be an independent, reliable experimental scientist with strong mammalian cell culture, cell-engineering, and assay-development expertise, working closely with a cross-functional team spanning biology, chemistry, and protein science. Apply appropriate assay formats, including luminescence-based reporter assays, complementation assays, flow cytometry, immunofluorescence/imaging, western blotting, qPCR, and other fit-for-purpose cellular methods.

18 days ago

Clinical Scientist II - C - Contract TalentBurst, Inc.

Santa Rosa, CA

$51 / hour
Quick Apply

Supervisory Responsibilities: Provides general or direct supervision of Lab General personnel and general Clerical Personnel as required according to lab law and regulations in the absence of the Department Manager, General Supervisor and Lab Director. Preferred: Minimum 2 Years’ Experience in a toxicology laboratory working with mass spectrometry, but will accept 5 years of general clinical laboratory experience with knowledge of toxicology.

3 days ago

Senior Scientist Analytical Development - Contract TalentBurst, Inc.

San Francisco, CA

Remote

$60.69 / hour
Quick Apply

The Senior Scientist, Biologics Analytical Development, supports the development of recombinant protein production processes and analytical strategies for biologic therapeutics. This role is responsible for analytical method development, product characterization, and analytical support for process development activities involving microbial and mammalian expression systems.

11 days ago

Scientist - Onsite Genesis10

South San Francisco, CA

Temporary
Contractor
Full time
Quick Apply

The scientist will work with a research team to execute experiments and generate high-quality data using cutting-edge genomic analysis platforms. Doctoral degree in molecular biology, biochemistry, genomics, or related fields OR Master's degree and at least 2 years of scientific experience OR Bachelor's degree and 4 years of experience.

16 days ago

Senior Machine Learning Data Scientist Extend

San Jose, CA

$135,000–$165,000 / year

Our comprehensive platform offers automated customer service handling, seamless returns/exchange management, end-to-end automated fulfillment, and product protection and shipping protection alongside Extends best-in-class fraud detection. As a Senior ML Data Scientist, you will own the development of cutting-edge machine learning models based on signals and transactions from hundreds of millions of users to detect and prevent fraud, assess risk, and unlock business value.

26 days ago

Scientist #26-27211 US Tech Solutions, Inc.

Thousand Oaks, CA

Quick Apply

Experimental Biology and Scientific Problem-Solving: Experience with in vitro assays, tissue sample processing, and RNA preparation, with demonstrated ability to troubleshoot experiments, analyze data, and interpret results. Must Have Skill Sets: Molecular Biology and Mammalian Cell Culture: Strong hands-on experience with sterile mammalian cell culture, molecular cloning, DNA construct design, and validation.

9 days ago

Data Scientist - Agentic AI Systems - IFS Loops IFS

Palo Alto, CA

$140,000–$150,000 / year

This role blends deep analytical thinking with fast-paced experimentation and model development, where your insights will directly inform how AI agents reason, plan, and act in dynamic environments. We are committed to promoting an inclusive workforce that fully represents the many different cultures, backgrounds, and viewpoints of our customers, our partners, and our communities.

30+ days ago

Research Associate Jobot

San Francisco, CA

$25–$40 / hour
Quick Apply

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. This role requires the ability to lift 30 pounds; standing, walking, bending, and stooping at regular intervals, and working with animals of various sizes for periods of up to 4-5 hours.

5 days ago

Medical Laboratory Scientist - Clinical Laboratory Providence Health and Services

Burbank, CA

$51.76–$80.34 / hour

Our not-for-profit network provides a full spectrum of care with leading-edge diagnostics and treatment, outpatient health centers, physician groups and clinics, numerous outreach programs, and hospice and home care, and even our own Providence High School. Our award-winning and comprehensive medical centers are known for outstanding programs in cancer, cardiology, neurosciences, orthopedics, women's services, emergency and trauma care, pediatrics and neonatal intensive care.

1 day ago

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Research Scientist Jobs in California

Lead Research Scientist Visa

AI Research Scientist, Agentic Systems (Remote) Crowdstrike

Staff Research Scientist, Intern - PhD Quantum Visa

Staff Research Scientist Visa

Pediatrics Developmental & Stem Cell Biology - Assistant Professor (Cedars-Sinai Research Scientist I) Cedars-Sinai Health System

Polymer Materials Scientist (Must have rubber or silicone experience) Jobot

Computer Scientist V - Senior Software Systems Engineer JT4 LLC

Associate Scientist #26-27332 US Tech Solutions, Inc.

Principal Applied Scientist - CoreAI Microsoft

Scientist 2, Biology Kaygen Inc.

Associate Scientist, Analytical - Contract TalentBurst, Inc.

Scientist - Cell Biology and Assay Development - Onsite Genesis10

Clinical Scientist II - C - Contract TalentBurst, Inc.

Senior Scientist Analytical Development - Contract TalentBurst, Inc.

Scientist - Onsite Genesis10

Senior Machine Learning Data Scientist Extend

Scientist #26-27211 US Tech Solutions, Inc.

Data Scientist - Agentic AI Systems - IFS Loops IFS

Research Associate Jobot

Medical Laboratory Scientist - Clinical Laboratory Providence Health and Services

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