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Science jobs in California, United States
886 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
Science jobs in California at a glance
- Open roles
- 886
- Remote
- 7%
- Posted in the last 30 days
- 235
- Advertised pay, middle half
- $126K – $300Kmedian $190K
From the 708 science jobs here that state yearly pay in USD: the top of each advertised range. Updated nightly.
Hiring most here
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321–340 of 886 jobs
Mercor AI Research Fund Grants: Benchmarks
6 weeks agoMercor · San Francisco, California, United States +3
RemoteTemporaryFrom $5.00 an hourScience & researchMercor's mission is to organize human intelligence to power the AI economy. We're a leading AI data company, building the layer between human expertise and frontier models. Millions of domain experts on the platform are paid over $4 million per day to train frontier AI models.…
Arc Institute · Palo Alto, California, United States
Entry level$121.3K – $159.5K a yearScience & researchWe are seeking a highly skilled and motivated Scientist to join the Horns laboratory at the Arc Institute. In this position, you will lead the development of pooled screening technology for measuring and engineering how biological nanoparticles deliver molecular cargo into…
Research Technician (Nights / Weekends)
6 weeks agoAlljoined · San Francisco, California, United States
On-siteContractFrom $25.00 an hourScience & researchAs a Research Technician, you will work directly with research participants running neural data collection sessions with precision and care while ensuring our datasets meet the quality standards required for cutting-edge deep research.
MTS - Research (Cybersecurity)
6 weeks agoCollinear AI · Sunnyvale, California, United States +2
HybridFull-timeScience & researchBuild cybersecurity environments. Create isolated, reproducible environments with real repositories, applications, services, logs, and access controls. Make them straightforward to launch, reset, and evaluate at scale.; Turn security work into tasks. Design scenarios around…
Scientist / Geologist I
6 weeks agoWest Yost · Irvine, California, United States
HybridFull-timeEntry level$73.2K – $105.8K a yearScience & researchPerforms field monitoring tasks that may include: recording water well information and groundwater-level measurements, or collecting groundwater and surface water samples for laboratory analyses.; Provides support to project team members, including: developing maps, charts, and…
California State University · San Francisco, California, United States
$5,044.00 – $5,248.00 a monthScience & researchUnder the general direction of the Principal Investigator (PI), the Research Lab Technician will be responsible for but not limited to all aspects of the research projects. The incumbent duties and responsibilities contain working knowledge of basic cell and molecular biology…
California State University · Chico, California, United States
SeniorFrom $60.5K a yearScience & researchThis position maintains contracts, chain of custody, and curation of human remains that are part of active law enforcement cases,
Research Program Manager, Frontier Assurance
6 weeks agoOpenAI · San Francisco, California, United States
HybridFull-time$239K – $328K a yearScience & researchThe Frontier Assurance team brings independent scrutiny into OpenAI’s safety decisions and helps the public understand and assess our safety work. We lead third-party assessments and safeguard testing for OpenAI’s flagship launches, pilot new assurance mechanisms such as…
Silvus Technologies · Los Angeles, California, United States
HybridSenior$160K – $200K a yearScience & researchSilvus Technologies, a leading provider of advanced MANET and MIMO communications systems, is reshaping mesh network technology for mission-critical applications – on the ground, in the air and at sea. Its battle-proven StreamCaster family of MANET radios and proprietary…
Research Scientist
6 weeks agoRoboflow · San Francisco, California, United States
Full-time$250K – $450K a yearScience & researchAs a Research Scientist at Roboflow Labs, you'll sit at the intersection of our benchmarks, our models, and the researchers at frontier labs who buy our data: running failure analyses that show exactly where a model breaks on real-world tasks, turning those findings into…
Research, Mid Training
6 weeks agoThinking Machines Lab · San Francisco, California, United States
On-siteFull-time$350K – $475K a yearScience & researchMid-training is a step between pre-training and post-training, where we take a base model and train it into the foundation for reasoning. This role owns the late-stage training responsibility that shape what our models are fundamentally capable of, including things like…
Member of Technical Staff, Post-Training
6 weeks agoHandshake · San Francisco, California, United States +3
HybridFull-timeLead / staff$200K – $350K a yearScience & researchWe are hiring a Member of Technical Staff, Post-Training to help define and build this new organization. This is a broad, high-ownership role for researchers who build. You may come from research science, research engineering, machine learning engineering, or a closely related…
Lab Technician
6 weeks agoUntil · San Francisco, California, United States
On-siteFull-time$70K – $90K a yearScience & researchWe are seeking a motivated and detail-oriented Lab Technician to support recombinant protein production and media, buffer, and solution preparation within the Molecular Development team. The role includes expressing and purifying proteins using bacterial and yeast systems,…
Applications Lab Associate II
6 weeks agoTwist Bioscience · South San Francisco, California, United States
Entry level$116K – $135K a yearScience & researchB.S. or M.S. in Molecular Biology, Biochemistry, Chemistry, or a related field (Associates degree with relevant experience may be considered); Hands-on experience in molecular biology techniques such as PCR, DNA purification, quantification, and library preparation; Experience…
Perplexity Research Fellowship
6 weeks agoPerplexity · San Francisco, California, United States +2
Full-time$180K – $220K a yearScience & researchWelcome to the application portal for the Perplexity Research Fellowship!
Principal Scientist, DMPK
7 weeks agoCalico · South San Francisco, California, United States
Lead / staff$197K – $235K a yearScience & researchCalico is seeking a Principal Scientist, Drug Metabolism and Pharmacokinetics to join our Drug Discovery team. This position is a unique opportunity to shape the DMPK strategy and contribute to the development of innovative therapeutics. This role will function as an individual…
Scientist I-II, Analytical Development
7 weeks agoAntheia · Menlo Park, California, United States
Mid level$120K – $155K a yearScience & researchPerform analytical method development and optimization for quantification of small molecules using UPLC-UV, LC-MS and GC-MS instruments from sample preparation to data analysis and interpretation Collaborate with scientists in biology and fermentation to understand analytical…
Sr. Electronics Validation Lab Manager
7 weeks agoRivian and Volkswagen Group Technologies · Irvine, California, United States
HybridFull-timeSenior$107.8K – $161.8K a yearScience & researchWe are looking for a hands-on Lab Manager to run the ECU Validation Test Lab — where we prove the reliability and durability of vehicle electronics through thermal stress, thermal shock, vibration, humidity, water and dust ingress testing.
Rhoda AI · Mountain View, California, United States
Full-timeLead / staff$200K – $300K a yearScience & researchDiagnose and improve performance of large-scale multimodal training (vision, video, proprioception, actions, language); Build systematic performance attribution: step-time decomposition (compute vs communication vs input pipeline), scaling curves across cluster sizes, and…
Atrium Therapeutics · San Diego, California, United States
On-siteFull-time$90K a yearScience & researchAtrium is seeking a Postdoctoral Scientist to develop and apply in vitro cardiac assays for siRNA-based antibody–oligonucleotide conjugate (AOC) programs in rare genetic cardiomyopathies. The role will use human iPSC-derived cardiomyocytes, primary adult cardiomyocytes, and…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.